1
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Bauder L, Wu G. Solid-state 35/37 Cl NMR detection of chlorine atoms directly bound to paramagnetic cobalt(II) ions in powder samples. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2024; 62:145-155. [PMID: 37950603 DOI: 10.1002/mrc.5407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/12/2023] [Accepted: 10/19/2023] [Indexed: 11/12/2023]
Abstract
We report high-quality solid-state 35/37 Cl NMR spectra for chlorine atoms directly bonded to paramagnetic cobalt(II) ions (high spin S = 3/2) in powered samples of CoCl2 , CoCl2 ·2H2 O, CoCl2 ·6H2 O, and CoCl2 (terpy) (terpy = 2,2':6',2″-terpyridine). Because solid-state 35/37 Cl NMR spectra for paramagnetic cobalt(II) compounds often cover an extremely wide spectral range, they were recorded in this work in the form of variable-offset cumulative spectra. Solid-state 35/37 Cl NMR measurements were performed at three magnetic fields (11.7, 14.1, and 16.5 T) and analysis of data yielded information about 35/37 Cl quadrupole coupling and hyperfine coupling tensors in these paramagnetic cobalt(II) compounds. Experimental 35/37 Cl NMR tensors were found to be in reasonable agreement with quantum chemical calculations based on a periodic DFT method implemented in BAND.
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Affiliation(s)
- Lukas Bauder
- Department of Chemistry, Queen's University, Kingston, Ontario, Canada
| | - Gang Wu
- Department of Chemistry, Queen's University, Kingston, Ontario, Canada
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2
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Fusco E, Ashbrook SE, Bühl M. 13C pNMR shifts of MOFs based on Cu(II)-paddlewheel dimers - DFT predictions for spin-1/2 defects. Phys Chem Chem Phys 2023; 25:31898-31906. [PMID: 37971425 DOI: 10.1039/d3cp04618d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
We present DFT predictions (CAM-B3LYP/II level) for the paramagnetic Nuclear Magnetic Resonance (pNMR) spectra of small molecular models based on the Cu(II)-paddlewheel dimer motif that is present in metal-organic frameworks (MOFs, notably the HKUST and STAM families). We explore potential point defects with spin-1/2 discovered through electron paramagnetic resonance (EPR) experiments. We consider defects through substitution of one Cu(II) centre in the dimer with protons, or through one-electron reduction, affording a mixed-valence dimer. While most of the defects have predicted pNMR shifts at room temperature in the range of those for the non-defective MOFs, their detection and assignment should be possible based on their distinct temperature dependence.
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Affiliation(s)
- Edoardo Fusco
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St Andrews, Fife KY16 9ST, UK.
| | - Sharon E Ashbrook
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St Andrews, Fife KY16 9ST, UK.
| | - Michael Bühl
- EaStCHEM School of Chemistry and Centre of Magnetic Resonance, University of St Andrews, Fife KY16 9ST, UK.
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3
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Xu J, Liu X, Liu X, Yan T, Wan H, Cao Z, Reimer JA. Deconvolution of metal apportionment in bulk metal-organic frameworks. SCIENCE ADVANCES 2022; 8:eadd5503. [PMID: 36332019 PMCID: PMC9635837 DOI: 10.1126/sciadv.add5503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
We report a general route to decipher the apportionment of metal ions in bulk metal-organic frameworks (MOFs) by solid-state nuclear magnetic resonance spectroscopy. We demonstrate this route in Mg1-xNix-MOF-74, where we uncover all eight possible atomic-scale Mg/Ni arrangements through identification and quantification of the distinct chemical environments of 13C-labeled carboxylates as a function of the Ni content. Here, we use magnetic susceptibility, bond pathway, and density functional theory calculations to identify local metal bonding configurations. The results refute the notion of random apportionment from solution synthesis; rather, we reveal that only two of eight Mg/Ni arrangements are preferred in the Ni-incorporated MOFs. These preferred structural arrangements manifest themselves in macroscopic adsorption phenomena as illustrated by CO/CO2 breakthrough curves. We envision that this nondestructive methodology can be further applied to analyze bulk assembly of other mixed-metal MOFs, greatly extending the knowledge on structure-property relationships of MOFs and their derived materials.
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Affiliation(s)
- Jun Xu
- Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering and National Institute for Advanced Materials, Nankai University, Tianjin 300350, P.R. China
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Xingwu Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P.R. China
- National Energy Center for Coal to Clean Fuels, Synfuels China Co. Ltd., Huairou District, Beijing 101400, P.R. China
| | - Xingchen Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Tao Yan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P.R. China
- National Energy Center for Coal to Clean Fuels, Synfuels China Co. Ltd., Huairou District, Beijing 101400, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Hongliu Wan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P.R. China
- National Energy Center for Coal to Clean Fuels, Synfuels China Co. Ltd., Huairou District, Beijing 101400, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Zhi Cao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P.R. China
- National Energy Center for Coal to Clean Fuels, Synfuels China Co. Ltd., Huairou District, Beijing 101400, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Jeffrey A. Reimer
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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4
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Solid-state NMR studies of host-guest chemistry in metal-organic frameworks. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Madden DG, O'Nolan D, Rampal N, Babu R, Çamur C, Al Shakhs AN, Zhang SY, Rance GA, Perez J, Maria Casati NP, Cuadrado-Collados C, O'Sullivan D, Rice NP, Gennett T, Parilla P, Shulda S, Hurst KE, Stavila V, Allendorf MD, Silvestre-Albero J, Forse AC, Champness NR, Chapman KW, Fairen-Jimenez D. Densified HKUST-1 Monoliths as a Route to High Volumetric and Gravimetric Hydrogen Storage Capacity. J Am Chem Soc 2022; 144:13729-13739. [PMID: 35876689 PMCID: PMC9354247 DOI: 10.1021/jacs.2c04608] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We are currently witnessing the dawn of hydrogen (H2) economy, where H2 will soon become a primary fuel for heating, transportation, and long-distance and long-term energy storage. Among diverse possibilities, H2 can be stored as a pressurized gas, a cryogenic liquid, or a solid fuel via adsorption onto porous materials. Metal-organic frameworks (MOFs) have emerged as adsorbent materials with the highest theoretical H2 storage densities on both a volumetric and gravimetric basis. However, a critical bottleneck for the use of H2 as a transportation fuel has been the lack of densification methods capable of shaping MOFs into practical formulations while maintaining their adsorptive performance. Here, we report a high-throughput screening and deep analysis of a database of MOFs to find optimal materials, followed by the synthesis, characterization, and performance evaluation of an optimal monolithic MOF (monoMOF) for H2 storage. After densification, this monoMOF stores 46 g L-1 H2 at 50 bar and 77 K and delivers 41 and 42 g L-1 H2 at operating pressures of 25 and 50 bar, respectively, when deployed in a combined temperature-pressure (25-50 bar/77 K → 5 bar/160 K) swing gas delivery system. This performance represents up to an 80% reduction in the operating pressure requirements for delivering H2 gas when compared with benchmark materials and an 83% reduction compared to compressed H2 gas. Our findings represent a substantial step forward in the application of high-density materials for volumetric H2 storage applications.
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Affiliation(s)
- David Gerard Madden
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.,Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Daniel O'Nolan
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790-3400, United States
| | - Nakul Rampal
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Robin Babu
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Ceren Çamur
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Ali N Al Shakhs
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Shi-Yuan Zhang
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
| | - Graham A Rance
- Nanoscale and Microscale Research Center (nmRC), University of Nottingham, University Park, Nottingham NG7 2RD, U.K.,School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K
| | - Javier Perez
- Synchrotron SOLEIL, Gif sur Yvette Cedex, Saint-Aubin 91190, France
| | - Nicola Pietro Maria Casati
- 10 Laboratory for Synchrotron Radiation─Condensed Matter, Paul Scherrer Institute, PSI, 11, Villigen 5232, Switzerland
| | - Carlos Cuadrado-Collados
- Laboratorio de Materiales Avanzados (LMA), Departamento de Química Inorgánica-IUMA, Universidad de Alicante, San Vicente del Raspeig 03690, Spain
| | - Denis O'Sullivan
- Immaterial Ltd., 25 Cambridge Science Park, Milton Road, Cambridge CB4 0FW, U.K
| | - Nicholas P Rice
- Immaterial Ltd., 25 Cambridge Science Park, Milton Road, Cambridge CB4 0FW, U.K
| | - Thomas Gennett
- Materials and Chemical Science and Technology Directorate, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Philip Parilla
- Materials and Chemical Science and Technology Directorate, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Sarah Shulda
- Materials and Chemical Science and Technology Directorate, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Katherine E Hurst
- Materials and Chemical Science and Technology Directorate, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Vitalie Stavila
- Chemistry, Combustion, and Materials Science Center, Sandia National Laboratories, Livermore, California 94551, United States
| | - Mark D Allendorf
- Chemistry, Combustion, and Materials Science Center, Sandia National Laboratories, Livermore, California 94551, United States
| | - Joaquin Silvestre-Albero
- Laboratorio de Materiales Avanzados (LMA), Departamento de Química Inorgánica-IUMA, Universidad de Alicante, San Vicente del Raspeig 03690, Spain
| | - Alexander C Forse
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Neil R Champness
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Karena W Chapman
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11790-3400, United States
| | - David Fairen-Jimenez
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K
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6
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Klug CA, Swift MW, Miller JB, Lyons JL, Albert A, Laskoski M, Hangarter CM. High resolution solid state NMR in paramagnetic metal-organic frameworks. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2022; 120:101811. [PMID: 35792451 DOI: 10.1016/j.ssnmr.2022.101811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/06/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
We study the metal-organic framework (MOF) ZIF-67 with 1H and 13C nuclear magnetic resonance (NMR). In addition to the usual orbital chemical shifts, we observe spinning sideband manifolds in the NMR spectrum due to hyperfine interactions of the paramagnetic cobalt with 1H and 13C. Both orbital and paramagnetic chemical shifts are in good agreement with values calculated from first principles, allowing high-confidence assignment of the observed peaks to specific sites within the MOF. Our measured resonance shifts, line shapes, and spin lattice relaxation rates are also consistent with calculated values. We show that molecules in the pores of the MOF can exhibit high-resolution NMR spectra with fast spin lattice relaxation rates due to dipole-dipole couplings to the Co2+ nodes in the ZIF-67 lattice, showcasing NMR spectroscopy as a powerful tool for identification and characterization of "guests" that may be hosted by the MOF in electrochemical and catalytic applications.
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Affiliation(s)
- C A Klug
- Chemistry Division, U.S. Naval Research Laboratory, Washington, DC, USA.
| | - M W Swift
- Materials Science Division, U.S. Naval Research Laboratory, Washington, DC, USA
| | - J B Miller
- Chemistry Division, U.S. Naval Research Laboratory, Washington, DC, USA
| | - J L Lyons
- Materials Science Division, U.S. Naval Research Laboratory, Washington, DC, USA
| | - A Albert
- Chemistry Division, U.S. Naval Research Laboratory, Washington, DC, USA
| | - M Laskoski
- Chemistry Division, U.S. Naval Research Laboratory, Washington, DC, USA
| | - C M Hangarter
- Chemistry Division, U.S. Naval Research Laboratory, Washington, DC, USA
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7
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He C, Li S, Xiao Y, Xu J, Deng F. Application of solid-state NMR techniques for structural characterization of metal-organic frameworks. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2022; 117:101772. [PMID: 35016011 DOI: 10.1016/j.ssnmr.2022.101772] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 12/27/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
Solid-state NMR can afford the structural information about the chemical composition, local environment, and spatial coordination at the atomic level, which has been extensively applied to characterize the detailed structure and host-guest interactions in metal-organic frameworks (MOFs). In this review, recent advances for the structural characterizations of MOFs using versatile solid-state NMR techniques were briefly introduced. High-field sensitivity-enhanced solid-state NMR method enabled the direct observation of metal centers in MOFs containing low-γ nuclei. Two-dimensional (2D) homo- and hetero-nuclear correlation MAS NMR experiments provided the spatial proximity among linkers, metal clusters and the introduced guest molecules. Moreover, quantitative measurement of inter-nuclear distances using solid-state NMR provided valuable structural information about the connectivity geometry as well as the host-guest interactions within MOFs. Furthermore, solid-state NMR has exhibited great potential for unraveling the structure property of MOFs containing paramagnetic metal centers.
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Affiliation(s)
- Caiyan He
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Shenhui Li
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
| | - Yuqing Xiao
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Jun Xu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Feng Deng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
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8
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Ke Z, Dawson DM, Ashbrook SE, Bühl M. Origin of the Temperature Dependence of 13C pNMR Shifts for Copper Paddlewheel MOFs. Chem Sci 2022; 13:2674-2685. [PMID: 35340852 PMCID: PMC8890090 DOI: 10.1039/d1sc07138f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/02/2022] [Indexed: 11/21/2022] Open
Abstract
An efficient protocol for the calculation of 13C pNMR shifts in metal-organic frameworks based on Cu(II) paddlewheel dimers is proposed, which involves simplified structural models, optimised using GFN2-xTB for the...
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Affiliation(s)
- Zhipeng Ke
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Daniel M Dawson
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Sharon E Ashbrook
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Michael Bühl
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
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9
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Blahut J, Lejeune AL, Ehrling S, Senkovska I, Kaskel S, Wisser FM, Pintacuda G. Untersuchung von Dynamik, Struktur und Magnetismus von schaltbaren Metall‐organischen Gerüstverbindungen mittels
1
H‐detektierter MAS‐NMR‐Spektroskopie. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jan Blahut
- Centre de Résonance Magnétique Nucléaire à Très Hauts Champs UMR 5082 CNRS ENS Lyon UCBL) Université de Lyon 69100 Villeurbanne Frankreich
- NMR Laboratory Faculty of Science Charles University Hlavova 8 12842 Prag Czech Republic
| | - Arthur L. Lejeune
- Centre de Résonance Magnétique Nucléaire à Très Hauts Champs UMR 5082 CNRS ENS Lyon UCBL) Université de Lyon 69100 Villeurbanne Frankreich
- IFP Energies Nouvelles 69360 Solaize Frankreich
| | - Sebastian Ehrling
- Professur für Anorganische Chemie I Technische Universität Dresden 01069 Dresden Deutschland
- Derzeitige Adresse: 3P Instruments GmbH & Co. KG Rudolf-Diesel-Straße 12 85235 Odelzhausen Deutschland
| | - Irena Senkovska
- Professur für Anorganische Chemie I Technische Universität Dresden 01069 Dresden Deutschland
| | - Stefan Kaskel
- Professur für Anorganische Chemie I Technische Universität Dresden 01069 Dresden Deutschland
| | - Florian M. Wisser
- IRCELYON (UMR 5256 CNRS, UCBL) Université de Lyon 69100 Villeurbanne Frankreich
- Institut für Anorganische Chemie Universität Regensburg 93040 Regensburg Deutschland
| | - Guido Pintacuda
- Centre de Résonance Magnétique Nucléaire à Très Hauts Champs UMR 5082 CNRS ENS Lyon UCBL) Université de Lyon 69100 Villeurbanne Frankreich
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10
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Blahut J, Lejeune AL, Ehrling S, Senkovska I, Kaskel S, Wisser FM, Pintacuda G. Monitoring Dynamics, Structure, and Magnetism of Switchable Metal-Organic Frameworks via 1 H-Detected MAS NMR. Angew Chem Int Ed Engl 2021; 60:21778-21783. [PMID: 34273230 PMCID: PMC8519119 DOI: 10.1002/anie.202107032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/12/2021] [Indexed: 01/03/2023]
Abstract
We present a toolbox for the rapid characterisation of powdered samples of paramagnetic metal-organic frameworks at natural abundance by 1 H-detected solid-state NMR. Very fast MAS rates at room and cryogenic temperatures and a set of tailored radiofrequency irradiation schemes help overcome the sensitivity and resolution limits often associated with the characterisation of MOF materials. We demonstrate the approach on DUT-8(Ni), a framework containing Ni2+ paddle-wheel units which can exist in two markedly different architectures. Resolved 1 H and 13 C resonances of organic linkers are detected and assigned in few hours with only 1-2 mg of sample at natural isotopic abundance, and used to rapidly extract information on structure and local internal dynamics of the assemblies, as well as to elucidate the metal electronic properties over an extended temperature range. The experiments disclose new possibilities for describing local and global structural changes and correlating them to electronic and magnetic properties of the assemblies.
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Affiliation(s)
- Jan Blahut
- Centre de Résonance Magnétique Nucléaire à Très Hauts ChampsUMR 5082 CNRSENS LyonUCBL)Université de Lyon69100VilleurbanneFrance
- NMR LaboratoryFaculty of ScienceCharles UniversityHlavova 812842PragueCzech Republic
| | - Arthur L. Lejeune
- Centre de Résonance Magnétique Nucléaire à Très Hauts ChampsUMR 5082 CNRSENS LyonUCBL)Université de Lyon69100VilleurbanneFrance
- IFP Energies Nouvelles69360SolaizeFrance
| | - Sebastian Ehrling
- Chair of Inorganic Chemistry ITechnische Universität Dresden01069DresdenGermany
- Present address: 3P Instruments GmbH & Co. KGRudolf-Diesel-Strasse 1285235OdelzhausenGermany
| | - Irena Senkovska
- Chair of Inorganic Chemistry ITechnische Universität Dresden01069DresdenGermany
| | - Stefan Kaskel
- Chair of Inorganic Chemistry ITechnische Universität Dresden01069DresdenGermany
| | - Florian M. Wisser
- IRCELYON (UMR 5256 CNRS, UCBL)Université de Lyon69100VilleurbanneFrance
- Institute of Inorganic ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Guido Pintacuda
- Centre de Résonance Magnétique Nucléaire à Très Hauts ChampsUMR 5082 CNRSENS LyonUCBL)Université de Lyon69100VilleurbanneFrance
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11
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Blahut J, Benda L, Lejeune AL, Sanders KJ, Burcher B, Jeanneau E, Proriol D, Catita L, Breuil PAR, Quoineaud AA, Pell AJ, Pintacuda G. Proton-detected fast-magic-angle spinning NMR of paramagnetic inorganic solids. RSC Adv 2021; 11:29870-29876. [PMID: 35479571 PMCID: PMC9040908 DOI: 10.1039/d1ra04110j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/17/2021] [Indexed: 02/01/2023] Open
Abstract
Fast (60 kHz) magic angle spinning solid-state NMR allows very sensitive proton detection in highly paramagnetic organometallic powders. We showcase this technique with the complete assignment of 1H and 13C resonances in a high-spin Fe(ii) polymerisation catalyst with less than 2 mg of sample at natural abundance.
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Affiliation(s)
- Jan Blahut
- Université de Lyon, Centre de RMN à Très Hauts Champs de Lyon (UMR 5082 - CNRS, ENS Lyon, UCB Lyon 1) 5 rue de la Doua 69100 Villeurbanne France
| | - Ladislav Benda
- Université de Lyon, Centre de RMN à Très Hauts Champs de Lyon (UMR 5082 - CNRS, ENS Lyon, UCB Lyon 1) 5 rue de la Doua 69100 Villeurbanne France
| | - Arthur L Lejeune
- Université de Lyon, Centre de RMN à Très Hauts Champs de Lyon (UMR 5082 - CNRS, ENS Lyon, UCB Lyon 1) 5 rue de la Doua 69100 Villeurbanne France .,IFP Energies Nouvelles, Rond-point de l'échangeur de Solaize 69360 Solaize France
| | - Kevin J Sanders
- Université de Lyon, Centre de RMN à Très Hauts Champs de Lyon (UMR 5082 - CNRS, ENS Lyon, UCB Lyon 1) 5 rue de la Doua 69100 Villeurbanne France
| | - Benjamin Burcher
- IFP Energies Nouvelles, Rond-point de l'échangeur de Solaize 69360 Solaize France
| | - Erwann Jeanneau
- Université de Lyon, Centre de Diffractométrie Henri Longchambon (UCB Lyon 1) 5 rue de la Doua 69100 Villeurbanne France
| | - David Proriol
- IFP Energies Nouvelles, Rond-point de l'échangeur de Solaize 69360 Solaize France
| | - Leonor Catita
- IFP Energies Nouvelles, Rond-point de l'échangeur de Solaize 69360 Solaize France
| | | | | | - Andrew J Pell
- Université de Lyon, Centre de RMN à Très Hauts Champs de Lyon (UMR 5082 - CNRS, ENS Lyon, UCB Lyon 1) 5 rue de la Doua 69100 Villeurbanne France .,Stockholm University, Department of Materials and Environmental Chemistry Svante Arrhenius väg 16C SE-106 91 Stockholm Sweden
| | - Guido Pintacuda
- Université de Lyon, Centre de RMN à Très Hauts Champs de Lyon (UMR 5082 - CNRS, ENS Lyon, UCB Lyon 1) 5 rue de la Doua 69100 Villeurbanne France
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12
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Li X, Porcino M, Qiu J, Constantin D, Martineau-Corcos C, Gref R. Doxorubicin-Loaded Metal-Organic Frameworks Nanoparticles with Engineered Cyclodextrin Coatings: Insights on Drug Location by Solid State NMR Spectroscopy. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:945. [PMID: 33917756 PMCID: PMC8068177 DOI: 10.3390/nano11040945] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 01/19/2023]
Abstract
Recently developed, nanoscale metal-organic frameworks (nanoMOFs) functionalized with versatile coatings are drawing special attention in the nanomedicine field. Here we show the preparation of core-shell MIL-100(Al) nanoMOFs for the delivery of the anticancer drug doxorubicin (DOX). DOX was efficiently incorporated in the MOFs and was released in a progressive manner, depending on the initial loading. Besides, the coatings were made of biodegradable γ-cyclodextrin-citrate oligomers (CD-CO) with affinity for both DOX and the MOF cores. DOX was incorporated and released faster due to its affinity for the coating material. A set of complementary solid state nuclear magnetic resonance (ssNMR) experiments including 1H-1H and 13C-27Al two-dimensional NMR, was used to gain a deep understanding on the multiple interactions involved in the MIL-100(Al) core-shell system. To do so, 13C-labelled shells were synthesized. This study paves the way towards a methodology to assess the nanoMOF component localization at a molecular scale and to investigate the nanoMOF physicochemical properties, which play a main role on their biological applications.
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Affiliation(s)
- Xue Li
- Institut des Sciences Moléculaires d’Orsay, UMR CNRS 8214, Université Paris-Sud, Université Paris Saclay, 91400 Orsay, France; (X.L.); (J.Q.)
| | - Marianna Porcino
- CEMHTI UPR CNRS 3079, Université d’Orléans, 45071 Orléans, France;
| | - Jingwen Qiu
- Institut des Sciences Moléculaires d’Orsay, UMR CNRS 8214, Université Paris-Sud, Université Paris Saclay, 91400 Orsay, France; (X.L.); (J.Q.)
| | - Doru Constantin
- Laboratoire de Physique des Solides, UMR 8502, Université Paris-Sud, 91405 Orsay, France;
| | - Charlotte Martineau-Corcos
- CEMHTI UPR CNRS 3079, Université d’Orléans, 45071 Orléans, France;
- ILV UMR CNRS 8180, Université de Versailles St-Quentin en Yvelines, Université Paris Saclay, 78035 Versailles, France
| | - Ruxandra Gref
- Institut des Sciences Moléculaires d’Orsay, UMR CNRS 8214, Université Paris-Sud, Université Paris Saclay, 91400 Orsay, France; (X.L.); (J.Q.)
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13
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Ashbrook SE, Davis ZH, Morris RE, Rice CM. 17O NMR spectroscopy of crystalline microporous materials. Chem Sci 2021; 12:5016-5036. [PMID: 34163746 PMCID: PMC8179582 DOI: 10.1039/d1sc00552a] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 02/25/2021] [Indexed: 12/16/2022] Open
Abstract
Microporous materials, containing pores and channels of similar dimensions to small molecules have a range of applications in catalysis, gas storage and separation and in drug delivery. Their complex structure, often containing different types and levels of positional, compositional and temporal disorder, makes structural characterisation challenging, with information on both long-range order and the local environment required to understand the structure-property relationships and improve the future design of functional materials. In principle, 17O NMR spectroscopy should offer an ideal tool, with oxygen atoms lining the pores of many zeolites and phosphate frameworks, playing a vital role in host-guest chemistry and reactivity, and linking the organic and inorganic components of metal-organic frameworks (MOFs). However, routine study is challenging, primarily as a result of the low natural abundance of this isotope (0.037%), exacerbated by the presence of the quadrupolar interaction that broadens the spectral lines and hinders the extraction of information. In this Perspective, we will highlight the current state-of-the-art for 17O NMR of microporous materials, focusing in particular on cost-effective and atom-efficient approaches to enrichment, the use of enrichment to explore chemical reactivity, the challenge of spectral interpretation and the approaches used to help this and the information that can be obtained from NMR spectra. Finally, we will turn to the remaining challenges, including further improving sensitivity, the high-throughput generation of multiple structural models for computational study and the possibility of in situ and in operando measurements, and give a personal perspective on how these required improvements can be used to help solve important problems in microporous materials chemistry.
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Affiliation(s)
- Sharon E Ashbrook
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Zachary H Davis
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Russell E Morris
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
| | - Cameron M Rice
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews St Andrews KY16 9ST UK
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14
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Li S, Lafon O, Wang W, Wang Q, Wang X, Li Y, Xu J, Deng F. Recent Advances of Solid-State NMR Spectroscopy for Microporous Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002879. [PMID: 32902037 DOI: 10.1002/adma.202002879] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/29/2020] [Indexed: 05/25/2023]
Abstract
Microporous materials have attracted a rapid growth of research interest in materials science and the multidisciplinary area because of their wide applications in catalysis, separation, ion exchange, gas storage, drug release, and sensing. A fundamental understanding of their diverse structures and properties is crucial for rational design of high-performance materials and technological applications in industry. Solid-state NMR (SSNMR), capable of providing atomic-level information on both structure and dynamics, is a powerful tool in the scientific exploration of solid materials. Here, advanced SSNMR instruments and methods for characterization of microporous materials are briefly described. The recent progress of the application of SSNMR for the investigation of microporous materials including zeolites, metal-organic frameworks, covalent organic frameworks, porous aromatic frameworks, and layered materials is discussed with representative work. The versatile SSNMR techniques provide detailed information on the local structure, dynamics, and chemical processes in the confined space of porous materials. The challenges and prospects in SSNMR study of microporous and related materials are discussed.
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Affiliation(s)
- Shenhui Li
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181- UCCS - Unité de Catalyse et Chimie du Solide, Lille, F-59000, France
- Institut Universitaire de France, Paris, 75231, France
| | - Weiyu Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingxing Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Yi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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15
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Affiliation(s)
- Aeri J. Gosselin
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Casey A. Rowland
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Eric D. Bloch
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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16
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Ke Z, Jamieson LE, Dawson DM, Ashbrook SE, Bühl M. NMR chemical shifts of urea loaded copper benzoate. A joint solid-state NMR and DFT study. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019; 101:31-37. [PMID: 31082542 DOI: 10.1016/j.ssnmr.2019.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/12/2019] [Accepted: 04/12/2019] [Indexed: 05/21/2023]
Abstract
We report solid-state 13C NMR spectra of urea-loaded copper benzoate, Cu2(C6H5CO2)4·2(urea), a simplified model for copper paddlewheel-based metal-organic frameworks (MOFs), along with first-principles density functional theory (DFT) computation of the paramagnetic NMR (pNMR) chemical shifts. Assuming a Boltzmann distribution between a diamagnetic open-shell singlet ground state (in a broken-symmetry Kohn-Sham DFT description) and an excited triplet state, the observed δ(13C) values are reproduced reasonably well at the PBE0-⅓/IGLO-II//PBE0-D3/AE1 level. Using the proposed assignments of the signals, the mean absolute deviation between computed and observed 13C chemical shifts is below 30 ppm over a range of more than 1100 ppm.
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Affiliation(s)
- Zhipeng Ke
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Lauren E Jamieson
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Daniel M Dawson
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Sharon E Ashbrook
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK.
| | - Michael Bühl
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK.
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17
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Levin K, Kroeker S. Probing Jahn-Teller distortions in Mn(acac) 3 through paramagnetic interactions in solid-state MAS NMR. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019; 101:101-109. [PMID: 31150959 DOI: 10.1016/j.ssnmr.2019.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/03/2019] [Accepted: 05/10/2019] [Indexed: 06/09/2023]
Abstract
The structural and electronic properties of solid coordination compounds are of great interest in a wide variety of applications. The sensitivity of solid-state NMR to local structural environments in the presence of a transition metal with unpaired spins is demonstrated through 13C and 1H MAS NMR spectra of tris(acetylacetonato)manganese (III), Mn(acac)3. The spectral assignment is established using a combination of density-functional theory and experimental NMR methods. An analysis of the spin-density distribution throughout the ligands as probed by NMR provides an understanding of the molecular electronic structure. The paramagnetic interaction enhances the spectral resolution and offers the possibility of using these spectra as structural fingerprints. The unique character of Mn(acac)3 to manifest various degrees of Jahn-Teller distortions allows for a discussion of the relation between the electron occupancy, crystal structure, and 13C NMR peak shifts.
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Affiliation(s)
- Kirill Levin
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Scott Kroeker
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada.
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18
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Dawson DM, Sansome CEF, McHugh LN, McPherson MJ, McCormick McPherson LJ, Morris RE, Ashbrook SE. 13C pNMR of "crumple zone" Cu(II) isophthalate metal-organic frameworks. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019; 101:44-50. [PMID: 31112890 DOI: 10.1016/j.ssnmr.2019.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/10/2019] [Accepted: 05/10/2019] [Indexed: 06/09/2023]
Abstract
NMR spectroscopy of paramagnetic materials (pNMR) has the potential to provide great structural insight, but many challenges remain in interpreting the spectra in detail. This work presents a study of a series of structurally analogous metal-organic frameworks (MOFs) based on 5-substituted isophthalate linkers and Cu(II) paddlewheel dimers, of interest owing to their "crumple zone" structural rearrangement on dehydration/rehydration. 13C MAS NMR spectra reveal a wide variation in the observed resonance position for chemically similar C species in the different MOFs but, despite this, resonances are overlapped in several cases. However, by considering a combination of the integration of quantitative spectra, the resonance position as a function of temperature and T1 relaxation measurements, the spectra can be fully assigned. It is also demonstrated that the prototypical MOF in this series, STAM-1, displays a crumple zone rearrangement on dehydration, similar to the well-characterised 5-ethoxyisophthalate MOF (STAM-17-OEt) although, while the materials have similar local C environments, dehydrated STAM-1 exhibits less long-range order.
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Affiliation(s)
- Daniel M Dawson
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom.
| | - Charlotte E F Sansome
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom
| | - Lauren N McHugh
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom
| | - Matthew J McPherson
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom; Energy Safety Research Institute, Swansea University, Fabian Way, Swansea, SA1 8EN, United Kingdom
| | - Laura J McCormick McPherson
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom
| | - Russell E Morris
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom
| | - Sharon E Ashbrook
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom.
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19
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McHugh LN, McPherson MJ, McCormick LJ, Morris SA, Wheatley PS, Teat SJ, McKay D, Dawson DM, Sansome CEF, Ashbrook SE, Stone CA, Smith MW, Morris RE. Hydrolytic stability in hemilabile metal-organic frameworks. Nat Chem 2018; 10:1096-1102. [PMID: 30104722 DOI: 10.1038/s41557-018-0104-x] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 06/11/2018] [Indexed: 11/10/2022]
Abstract
Highly porous metal-organic frameworks (MOFs), which have undergone exciting developments over the past few decades, show promise for a wide range of applications. However, many studies indicate that they suffer from significant stability issues, especially with respect to their interactions with water, which severely limits their practical potential. Here we demonstrate how the presence of 'sacrificial' bonds in the coordination environment of its metal centres (referred to as hemilability) endows a dehydrated copper-based MOF with good hydrolytic stability. On exposure to water, in contrast to the indiscriminate breaking of coordination bonds that typically results in structure degradation, it is non-structural weak interactions between the MOF's copper paddlewheel clusters that are broken and the framework recovers its as-synthesized, hydrated structure. This MOF retained its structural integrity even after contact with water for one year, whereas HKUST-1, a compositionally similar material that lacks these sacrificial bonds, loses its crystallinity in less than a day under the same conditions.
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Affiliation(s)
- Lauren N McHugh
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Matthew J McPherson
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Laura J McCormick
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK.,Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Samuel A Morris
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Paul S Wheatley
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Simon J Teat
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - David McKay
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Daniel M Dawson
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Charlotte E F Sansome
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Sharon E Ashbrook
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK
| | - Corinne A Stone
- Defence Science and Technology Laboratory (Dstl), Porton Down, Salisbury, Wiltshire, UK
| | - Martin W Smith
- Defence Science and Technology Laboratory (Dstl), Porton Down, Salisbury, Wiltshire, UK
| | - Russell E Morris
- EaStCHEM School of Chemistry, University of St Andrews, Purdie Building, St Andrews, UK. .,Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University in Prague, Hlavova , Prague, Czech Republic.
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20
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Ashbrook SE, Hodgkinson P. Perspective: Current advances in solid-state NMR spectroscopy. J Chem Phys 2018; 149:040901. [PMID: 30068173 DOI: 10.1063/1.5038547] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
In contrast to the rapid and revolutionary impact of solution-state Nuclear Magnetic Resonance (NMR) on modern chemistry, the field of solid-state NMR has matured more slowly. This reflects the major technical challenges of much reduced spectral resolution and sensitivity in solid-state as compared to solution-state spectra, as well as the relative complexity of the solid state. In this perspective, we outline the technique developments that have pushed resolution to intrinsic limits and the approaches, including ongoing major developments in the field of Dynamic Nuclear Polarisation, that have enhanced spectral sensitivity. The information on local structure and dynamics that can be obtained using these gains in sensitivity and resolution is illustrated with a diverse range of examples from large biomolecules to energy materials and pharmaceuticals and from both ordered and highly disordered materials. We discuss how parallel developments in quantum chemical calculation, particularly density functional theory, have enabled experimental data to be translated directly into information on local structure and dynamics, giving rise to the developing field of "NMR crystallography."
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Affiliation(s)
- Sharon E Ashbrook
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews KY16 9ST, United Kingdom
| | - Paul Hodgkinson
- Department of Chemistry, Durham University, Durham DH1 4RD, United Kingdom
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21
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Wittmann T, Mondal A, Tschense CBL, Wittmann JJ, Klimm O, Siegel R, Corzilius B, Weber B, Kaupp M, Senker J. Probing Interactions of N-Donor Molecules with Open Metal Sites within Paramagnetic Cr-MIL-101: A Solid-State NMR Spectroscopic and Density Functional Theory Study. J Am Chem Soc 2018; 140:2135-2144. [DOI: 10.1021/jacs.7b10148] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Thomas Wittmann
- Inorganic
Chemistry III, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Arobendo Mondal
- Institute
of Chemistry, Theoretical Chemistry/Quantum Chemistry, Technical University of Berlin, Sekr. C7, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Carsten B. L. Tschense
- Inorganic
Chemistry III, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Johannes J. Wittmann
- Institute
of Physical and Theoretical Chemistry and Institute of Biophysical
Chemistry, Goethe University Frankfurt, Max-von-Laue-Straße 7-9, 60438 Frankfurt am Main, Germany
| | - Ottokar Klimm
- Inorganic
Chemistry II, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Renée Siegel
- Inorganic
Chemistry III, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Björn Corzilius
- Institute
of Physical and Theoretical Chemistry and Institute of Biophysical
Chemistry, Goethe University Frankfurt, Max-von-Laue-Straße 7-9, 60438 Frankfurt am Main, Germany
| | - Birgit Weber
- Inorganic
Chemistry II, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Martin Kaupp
- Institute
of Chemistry, Theoretical Chemistry/Quantum Chemistry, Technical University of Berlin, Sekr. C7, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Juergen Senker
- Inorganic
Chemistry III, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
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22
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Bignami GPM, Davis ZH, Dawson DM, Morris SA, Russell SE, McKay D, Parke RE, Iuga D, Morris RE, Ashbrook SE. Cost-effective 17O enrichment and NMR spectroscopy of mixed-metal terephthalate metal-organic frameworks. Chem Sci 2018; 9:850-859. [PMID: 29629152 PMCID: PMC5873045 DOI: 10.1039/c7sc04649a] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 11/23/2017] [Indexed: 11/21/2022] Open
Abstract
17O solid-state NMR spectroscopy is employed to investigate the cation disorder in metal-organic frameworks containing two different types of metal cations. Although NMR offers exquisite sensitivity to the local, atomic-scale structure, making it an ideal tool for the characterisation of disordered materials, the low natural abundance of 17O (0.037%) necessitates expensive isotopic enrichment to acquire spectra on a reasonable timescale. Using dry gel conversion and a novel steaming method we show that cost-effective and atom-efficient enrichment of MOFs is possible, and that high-resolution 17O NMR spectra are sensitive both to the structural forms of the MOF and the presence of guest molecules. For mixed-metal forms of MIL-53, NMR can also provide information on the final composition of the materials (notably different to that of the initial starting material) and the preference for cation clustering/ordering within the MOFs. For Al, Ga MIL-53, the distribution of cations results in a mixed-pore form upon exposure to water, unlike the different structures seen for the corresponding end members. This work shows that as good levels of enrichment can be achieved at reasonable cost, 17O NMR spectroscopy should be an invaluable tool for the study of these important functional materials.
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Affiliation(s)
- Giulia P M Bignami
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - Zachary H Davis
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - Daniel M Dawson
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - Samuel A Morris
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - Samantha E Russell
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - David McKay
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - Richard E Parke
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - Dinu Iuga
- UK 850 MHz Solid-State NMR Facility , Department of Physics , University of Warwick , Millburn House , Coventry , CV4 7AL , UK
| | - Russell E Morris
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
| | - Sharon E Ashbrook
- School of Chemistry , EaStCHEM and Centre of Magnetic Resonance , University of St Andrews , North Haugh, St Andrews , Fife , KY16 9ST , UK . ;
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23
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Martineau-Corcos C. NMR Crystallography: A tool for the characterization of microporous hybrid solids. Curr Opin Colloid Interface Sci 2018. [DOI: 10.1016/j.cocis.2018.01.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Rouf SA, Jakobsen VB, Mareš J, Jensen ND, McKenzie CJ, Vaara J, Nielsen UG. Assignment of solid-state 13C and 1H NMR spectra of paramagnetic Ni(II) acetylacetonate complexes aided by first-principles computations. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2017; 87:29-37. [PMID: 28759801 DOI: 10.1016/j.ssnmr.2017.07.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 07/07/2017] [Accepted: 07/10/2017] [Indexed: 06/07/2023]
Abstract
Recent advances in computational methodology allowed for first-principles calculations of the nuclear shielding tensor for a series of paramagnetic nickel(II) acetylacetonate complexes, [Ni(acac)2L2] with L = H2O, D2O, NH3, ND3, and PMe2Ph have provided detailed insight into the origin of the paramagnetic contributions to the total shift tensor. This was employed for the assignment of the solid-state 1,2H and 13C MAS NMR spectra of these compounds. The two major contributions to the isotropic shifts are by orbital (diamagnetic-like) and contact mechanism. The orbital shielding, contact, as well as dipolar terms all contribute to the anisotropic component. The calculations suggest reassignment of the 13C methyl and carbonyl resonances in the acac ligand [Inorg. Chem.53, 2014, 399] leading to isotropic paramagnetic shifts of δ(13C) ≈ 800-1100 ppm and ≈180-300 ppm for 13C for the methyl and carbonyl carbons located three and two bonds away from the paramagnetic Ni(II) ion, respectively. Assignment using three different empirical correlations, i.e., paramagnetic shifts, shift anisotropy, and relaxation (T1) were ambiguous, however the latter two support the computational results. Thus, solid-state NMR spectroscopy in combination with modern quantum-chemical calculations of paramagnetic shifts constitutes a promising tool for structural investigations of metal complexes and materials.
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Affiliation(s)
- Syed Awais Rouf
- NMR Research Unit, University of Oulu, P.O. BOX 3000, FIN-90014 Oulu, Finland
| | - Vibe Boel Jakobsen
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, 5230 Odense M, Denmark; School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Jiří Mareš
- NMR Research Unit, University of Oulu, P.O. BOX 3000, FIN-90014 Oulu, Finland
| | - Nicholai Daugaard Jensen
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, 5230 Odense M, Denmark
| | - Christine J McKenzie
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, 5230 Odense M, Denmark
| | - Juha Vaara
- NMR Research Unit, University of Oulu, P.O. BOX 3000, FIN-90014 Oulu, Finland
| | - Ulla Gro Nielsen
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, 5230 Odense M, Denmark.
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25
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Moran RF, Dawson DM, Ashbrook SE. Exploiting NMR spectroscopy for the study of disorder in solids. INT REV PHYS CHEM 2017. [DOI: 10.1080/0144235x.2017.1256604] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Robert F. Moran
- School of Chemistry, EaStCHEM and St Andrews Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews KY16 9ST, UK
| | - Daniel M. Dawson
- School of Chemistry, EaStCHEM and St Andrews Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews KY16 9ST, UK
| | - Sharon E. Ashbrook
- School of Chemistry, EaStCHEM and St Andrews Centre of Magnetic Resonance, University of St Andrews, North Haugh, St Andrews KY16 9ST, UK
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26
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Bertmer M. Paramagnetic solid-state NMR of materials. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2017; 81:1-7. [PMID: 27918930 DOI: 10.1016/j.ssnmr.2016.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
Solid-state NMR (SSNMR) experiments are mainly performed on diamagnetic materials. However, the study of paramagnetic materials offers access to additional information in combination with the unpaired electron. This article discusses the experimental complications arising when considering paramagnetic materials such as large shift effects and large linewidths. A look at the theoretical description as well as experimental methods are shown and accompanied by techniques for signal assignment, also with the help of quantum-chemical calculations.
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Affiliation(s)
- Marko Bertmer
- Leipzig University, Experimental Physics II, Linnéstr. 5, Leipzig 04103, Germany
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27
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Morris RE, Brammer L. Coordination change, lability and hemilability in metal–organic frameworks. Chem Soc Rev 2017; 46:5444-5462. [DOI: 10.1039/c7cs00187h] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Deformation or cleavage/reformation of metal–ligand bonds in MOFs lies at the heart of chemical/thermal stability and dynamic/flexible behaviour, provides avenues for post-synthetic modification, and can enable novel or improved performance for a variety of applications.
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Affiliation(s)
| | - Lee Brammer
- Department of Chemistry
- University of Sheffield
- Sheffield S3 7HF
- UK
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28
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Dawson DM, Ke Z, Mack FM, Doyle RA, Bignami GPM, Smellie IA, Bühl M, Ashbrook SE. Calculation and experimental measurement of paramagnetic NMR parameters of phenolic oximate Cu(ii) complexes. Chem Commun (Camb) 2017; 53:10512-10515. [DOI: 10.1039/c7cc05098d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Unusual 1H and 13C NMR shifts for paramagnetic bisoximato copper(ii) complexes are understood by combining DFT calculations and multidimensional experiments.
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Affiliation(s)
- Daniel M. Dawson
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
| | - Zhipeng Ke
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
| | - Frederick M. Mack
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
| | - Rachel A. Doyle
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
| | - Giulia P. M. Bignami
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
| | - Iain A. Smellie
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
| | - Michael Bühl
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
| | - Sharon E. Ashbrook
- School of Chemistry
- EaStCHEM and Centre of Magnetic Resonance
- University of St Andrews
- St Andrews
- UK
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29
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Bühl M, Ashbrook SE, Dawson DM, Doyle RA, Hrobárik P, Kaupp M, Smellie IA. Paramagnetic NMR of Phenolic Oxime Copper Complexes: A Joint Experimental and Density Functional Study. Chemistry 2016; 22:15328-15339. [DOI: 10.1002/chem.201602567] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Michael Bühl
- University of St. Andrews; School of Chemistry and Centre of Magnetic Resonance, North Haugh; St Andrews, Fife KY16 9ST Scotland UK
| | - Sharon E. Ashbrook
- University of St. Andrews; School of Chemistry and Centre of Magnetic Resonance, North Haugh; St Andrews, Fife KY16 9ST Scotland UK
| | - Daniel M. Dawson
- University of St. Andrews; School of Chemistry and Centre of Magnetic Resonance, North Haugh; St Andrews, Fife KY16 9ST Scotland UK
| | - Rachel A. Doyle
- University of St. Andrews; School of Chemistry and Centre of Magnetic Resonance, North Haugh; St Andrews, Fife KY16 9ST Scotland UK
| | - Peter Hrobárik
- Technische Universität Berlin; Institut für Chemie; Strasse des 17. Juni 135 D-10623 Berlin Germany
| | - Martin Kaupp
- Technische Universität Berlin; Institut für Chemie; Strasse des 17. Juni 135 D-10623 Berlin Germany
| | - Iain A. Smellie
- University of St. Andrews; School of Chemistry and Centre of Magnetic Resonance, North Haugh; St Andrews, Fife KY16 9ST Scotland UK
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30
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Kim J, Park C, Song I, Lee M, Kim H, Choi HC. Unique Crystallization of Fullerenes: Fullerene Flowers. Sci Rep 2016; 6:32205. [PMID: 27561446 PMCID: PMC4999865 DOI: 10.1038/srep32205] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 08/03/2016] [Indexed: 11/16/2022] Open
Abstract
Solution-phase crystallization of fullerene molecules strongly depends on the types of solvent and their ratios because solvent molecules are easily included in the crystal lattice and distort its structure. The C70 (solute)–mesitylene (solvent) system yields crystals with various morphologies and structures, such as cubes, tubes, and imperfect rods. Herein, using C60 and C70 dissolved in mesitylene, we present a novel way to grow unique flower-shaped crystals with six symmetric petals. The different solubility of C60 and C70 in mesitylene promotes nucleation of C70 with sixfold symmetry in the early stage, which is followed by co-crystallization of both C60 and C70 molecules, leading to lateral petal growth. Based on the growth mechanism, we obtained more complex fullerene crystals, such as multi-deck flowers and tube-flower complexes, by changing the sequence and parameters of crystallization.
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Affiliation(s)
- Jungah Kim
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Chibeom Park
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea
| | - Intek Song
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Minkyung Lee
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Hyungki Kim
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Hee Cheul Choi
- Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science (IBS), Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
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31
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Ashbrook SE, McKay D. Combining solid-state NMR spectroscopy with first-principles calculations - a guide to NMR crystallography. Chem Commun (Camb) 2016; 52:7186-204. [PMID: 27117884 DOI: 10.1039/c6cc02542k] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Recent advances in the application of first-principles calculations of NMR parameters to periodic systems have resulted in widespread interest in their use to support experimental measurement. Such calculations often play an important role in the emerging field of "NMR crystallography", where NMR spectroscopy is combined with techniques such as diffraction, to aid structure determination. Here, we discuss the current state-of-the-art for combining experiment and calculation in NMR spectroscopy, considering the basic theory behind the computational approaches and their practical application. We consider the issues associated with geometry optimisation and how the effects of temperature may be included in the calculation. The automated prediction of structural candidates and the treatment of disordered and dynamic solids are discussed. Finally, we consider the areas where further development is needed in this field and its potential future impact.
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Affiliation(s)
- Sharon E Ashbrook
- School of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St Andrews, KY16 9ST, UK.
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32
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Xu J, Lucier BEG, Sinelnikov R, Terskikh VV, Staroverov VN, Huang Y. Monitoring and Understanding the Paraelectric-Ferroelectric Phase Transition in the Metal-Organic Framework [NH4][M(HCOO)3] by Solid-State NMR Spectroscopy. Chemistry 2015; 21:14348-61. [DOI: 10.1002/chem.201501954] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Indexed: 11/08/2022]
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33
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Ashbrook SE, Dawson DM, Seymour VR. Recent developments in solid-state NMR spectroscopy of crystalline microporous materials. Phys Chem Chem Phys 2015; 16:8223-42. [PMID: 24675798 DOI: 10.1039/c4cp00578c] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microporous materials, having pores and channels on the same size scale as small to medium molecules, have found many important applications in current technologies, including catalysis, gas separation and drug storage and delivery. Many of their properties and functions are related to their detailed local structure, such as the type and distribution of active sites within the pores, and the specific structures of these active sites. Solid-state NMR spectroscopy has a strong track record of providing the requisite detailed atomic-level insight into the structures of microporous materials, in addition to being able to probe dynamic processes occurring on timescales spanning many orders of magnitude (i.e., from s to ps). In this Perspective, we provide a brief review of some of the basic experimental approaches used in solid-state NMR spectroscopy of microporous materials, and then discuss some more recent advances in this field, particularly those applied to the study of crystalline materials such as zeolites and metal-organic frameworks. These advances include improved software for aiding spectral interpretation, the development of the NMR-crystallography approach to structure determination, new routes for the synthesis of isotopically-labelled materials, methods for the characterisation of host-guest interactions, and methodologies suitable for observing NMR spectra of paramagnetic microporous materials. Finally, we discuss possible future directions, which we believe will have the greatest impact on the field over the coming years.
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Affiliation(s)
- Sharon E Ashbrook
- School of Chemistry, EaStCHEM and St Andrews Centre for Magnetic Resonance, St Andrews KY16 9ST, UK.
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34
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Žunkovič E, Mazaj M, Mali G, Rangus M, Devic T, Serre C, Logar NZ. Structural study of Ni- or Mg-based complexes incorporated within UiO-66-NH2 framework and their impact on hydrogen sorption properties. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2014.12.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Kong X, Terskikh VV, Khade RL, Yang L, Rorick A, Zhang Y, He P, Huang Y, Wu G. Solid-state ¹⁷O NMR spectroscopy of paramagnetic coordination compounds. Angew Chem Int Ed Engl 2015; 54:4753-7. [PMID: 25694203 PMCID: PMC4418630 DOI: 10.1002/anie.201409888] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Indexed: 11/09/2022]
Abstract
High-quality solid-state (17)O (I=5/2) NMR spectra can be successfully obtained for paramagnetic coordination compounds in which oxygen atoms are directly bonded to the paramagnetic metal centers. For complexes containing V(III) (S=1), Cu(II) (S=1/2), and Mn(III) (S=2) metal centers, the (17)O isotropic paramagnetic shifts were found to span a range of more than 10,000 ppm. In several cases, high-resolution (17)O NMR spectra were recorded under very fast magic-angle spinning (MAS) conditions at 21.1 T. Quantum-chemical computations using density functional theory (DFT) qualitatively reproduced the experimental (17)O hyperfine shift tensors.
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Affiliation(s)
- Xianqi Kong
- Department of Chemistry, Queen's University Kingston, Ontario, K7L 3N6 (Canada)
| | - Victor V. Terskikh
- Department of Chemistry, University of Ottawa Ottawa, Ontario, K1N 6N5 (Canada)
| | - Rahul L. Khade
- Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology Castle Point on Hudson, Hoboken, New Jersey 07030 (USA)
| | - Liu Yang
- Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology Castle Point on Hudson, Hoboken, New Jersey 07030 (USA)
| | - Amber Rorick
- Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology Castle Point on Hudson, Hoboken, New Jersey 07030 (USA)
| | - Yong Zhang
- Department of Chemistry, Chemical Biology, and Biomedical Engineering, Stevens Institute of Technology Castle Point on Hudson, Hoboken, New Jersey 07030 (USA)
| | - Peng He
- Department of Chemistry, University of Western Ontario London, Ontario, N6A 5B7 (Canada)
| | - Yining Huang
- Department of Chemistry, University of Western Ontario London, Ontario, N6A 5B7 (Canada)
| | - Gang Wu
- Department of Chemistry, Queen's University Kingston, Ontario, K7L 3N6 (Canada)
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36
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Kong X, Terskikh VV, Khade RL, Yang L, Rorick A, Zhang Y, He P, Huang Y, Wu G. Solid-State17O NMR Spectroscopy of Paramagnetic Coordination Compounds. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Li S, Trébosc J, Lafon O, Zhou L, Shen M, Pourpoint F, Amoureux JP, Deng F. Observation of 1H-13C and 1H-1H proximities in a paramagnetic solid by NMR at high magnetic field under ultra-fast MAS. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2015; 251:36-42. [PMID: 25557861 DOI: 10.1016/j.jmr.2014.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/28/2014] [Accepted: 11/30/2014] [Indexed: 06/04/2023]
Abstract
The assignment of NMR signals in paramagnetic solids is often challenging since: (i) the large paramagnetic shifts often mask the diamagnetic shifts specific to the local chemical environment, and (ii) the hyperfine interactions with unpaired electrons broaden the NMR spectra and decrease the coherence lifetime, thus reducing the efficiency of usual homo- and hetero-nuclear NMR correlation experiments. Here we show that the assignment of (1)H and (13)C signals in isotopically unmodified paramagnetic compounds with moderate hyperfine interactions can be facilitated by the use of two two-dimensional (2D) experiments: (i) (1)H-(13)C correlations with (1)H detection and (ii) (1)H-(1)H double-quantum↔single-quantum correlations. These methods are experimentally demonstrated on isotopically unmodified copper (II) complex of l-alanine at high magnetic field (18.8 T) and ultra-fast Magic Angle Spinning (MAS) frequency of 62.5 kHz. Compared to (13)C detection, we show that (1)H detection leads to a 3-fold enhancement in sensitivity for (1)H-(13)C 2D correlation experiments. By combining (1)H-(13)C and (1)H-(1)H 2D correlation experiments with the analysis of (13)C longitudinal relaxation times, we have been able to assign the (1)H and (13)C signals of each l-alanine ligand.
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Affiliation(s)
- Shenhui Li
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Julien Trébosc
- Univ. Lille North of France, Unit of Catalysis and Chemistry of Solids (UCCS), CNRS UMR 8181, ENSCL, Univ. Lille 1, Villeneuve d'Ascq 59652, France
| | - Olivier Lafon
- Univ. Lille North of France, Unit of Catalysis and Chemistry of Solids (UCCS), CNRS UMR 8181, ENSCL, Univ. Lille 1, Villeneuve d'Ascq 59652, France.
| | - Lei Zhou
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Ming Shen
- Univ. Lille North of France, Unit of Catalysis and Chemistry of Solids (UCCS), CNRS UMR 8181, ENSCL, Univ. Lille 1, Villeneuve d'Ascq 59652, France; Physics Department & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China
| | - Frédérique Pourpoint
- Univ. Lille North of France, Unit of Catalysis and Chemistry of Solids (UCCS), CNRS UMR 8181, ENSCL, Univ. Lille 1, Villeneuve d'Ascq 59652, France
| | - Jean-Paul Amoureux
- Univ. Lille North of France, Unit of Catalysis and Chemistry of Solids (UCCS), CNRS UMR 8181, ENSCL, Univ. Lille 1, Villeneuve d'Ascq 59652, France; Physics Department & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China.
| | - Feng Deng
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.
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38
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Kuttatheyil AV, Handke M, Bergmann J, Lässig D, Lincke J, Haase J, Bertmer M, Krautscheid H. 113Cd Solid-State NMR for Probing the Coordination Sphere in Metal-Organic Frameworks. Chemistry 2014; 21:1118-24. [DOI: 10.1002/chem.201405395] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Indexed: 11/12/2022]
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39
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Guo Z, Kobayashi T, Wang LL, Goh TW, Xiao C, Caporini MA, Rosay M, Johnson DD, Pruski M, Huang W. Selective Host-Guest Interaction between Metal Ions and Metal-Organic Frameworks Using Dynamic Nuclear Polarization Enhanced Solid-State NMR Spectroscopy. Chemistry 2014; 20:16308-13. [DOI: 10.1002/chem.201403884] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/07/2014] [Indexed: 11/06/2022]
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40
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Bonhomme C, Gervais C, Laurencin D. Recent NMR developments applied to organic-inorganic materials. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2014; 77:1-48. [PMID: 24411829 DOI: 10.1016/j.pnmrs.2013.10.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/17/2013] [Indexed: 06/03/2023]
Abstract
In this contribution, the latest developments in solid state NMR are presented in the field of organic-inorganic (O/I) materials (or hybrid materials). Such materials involve mineral and organic (including polymeric and biological) components, and can exhibit complex O/I interfaces. Hybrids are currently a major topic of research in nanoscience, and solid state NMR is obviously a pertinent spectroscopic tool of investigation. Its versatility allows the detailed description of the structure and texture of such complex materials. The article is divided in two main parts: in the first one, recent NMR methodological/instrumental developments are presented in connection with hybrid materials. In the second part, an exhaustive overview of the major classes of O/I materials and their NMR characterization is presented.
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Affiliation(s)
- Christian Bonhomme
- Laboratoire de Chimie de la Matière Condensée de Paris, UMR CNRS 7574, Université Pierre et Marie Curie, Paris 06, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France.
| | - Christel Gervais
- Laboratoire de Chimie de la Matière Condensée de Paris, UMR CNRS 7574, Université Pierre et Marie Curie, Paris 06, Collège de France, 11 Place Marcelin Berthelot, 75231 Paris Cedex 05, France
| | - Danielle Laurencin
- Institut Charles Gerhardt de Montpellier, UMR5253, CNRS UM2 UM1 ENSCM, CC1701, Place Eugène Bataillon, 34095 Montpellier Cedex 05, France
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