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Stemo G, Nishiuchi J, Bhakta H, Mao H, Wiesehan G, Xiong W, Katsuki H. Ultrafast Spectroscopy under Vibrational Strong Coupling in Diphenylphosphoryl Azide. J Phys Chem A 2024; 128:1817-1824. [PMID: 38437187 PMCID: PMC10945483 DOI: 10.1021/acs.jpca.3c07847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/26/2024] [Accepted: 02/13/2024] [Indexed: 03/06/2024]
Abstract
Strong coupling of cavity photons and molecular vibrations creates vibrational polaritons that have been shown to modify chemical reactivity and alter material properties. While ultrafast spectroscopy of vibrational polaritons has been performed intensively in metal complexes, ultrafast dynamics in vibrationally strongly coupled organic molecules remain unexplored. Here, we report ultrafast pump-probe measurement and two-dimensional infrared spectroscopy in diphenylphosphoryl azide under vibrational strong coupling. Early time oscillatory structures indicate coherent energy exchange between the two polariton modes, which decays in ∼2 ps. We observe a large transient absorptive feature around the lower polariton, which can be explained by the overlapped excited-state absorption and derivative-shaped structures around the lower and upper polaritons. The latter feature is explained by the Rabi splitting contraction, which is ascribed to a reduced population in the ground state. These results reassure the previously reported spectroscopic theory to describe nonlinear spectroscopy of vibrational polaritons. We have also noticed the influence of the complicated layer structure of the cavity mirrors. The penetration of the electric field distribution into the layered structure of the dielectric-mirror cavities can significantly affect the Rabi splitting and the decay time constant of polaritonic systems.
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Affiliation(s)
- Garrek Stemo
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Joel Nishiuchi
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Harsh Bhakta
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Haochuan Mao
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Garret Wiesehan
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Wei Xiong
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Hiroyuki Katsuki
- Graduate School of Science and Technology, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
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2
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Ando M, Tashiro A, Kawano M, Peng Y, Takamuku T, Shirota H. Exploring the Microscopic Aspects of 1-Methyl-3-octylimidazolium Tetrafluoroborate Mixtures with Formamide, N-Methylformamide, and N, N-Dimethylformamide by Multiple Spectroscopic Techniques and Computations. J Phys Chem B 2023; 127:3870-3887. [PMID: 37093658 DOI: 10.1021/acs.jpcb.2c09102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The microscopic aspects of 1-methyl-3-octylimidazolium tetrafluoroborate ([MOIm][BF4]) mixtures with formamide (FA), N-methylformamide (NMF), and N,N-dimethylformamide (DMF) were investigated using spectroscopic techniques of femtosecond Raman-induced Kerr effect spectroscopy (fs-RIKES), FT-IR, and NMR. Molecular dynamics simulations and quantum chemistry calculations were also performed. According to fs-RIKES, the first moment of the low-frequency spectrum bands mainly originating from the intermolecular vibrations in the [MOIm][BF4]/FA and [MOIm][BF4]/DMF systems changed gradually with the molecular liquid mole fraction XML but that in the [MOIm][BF4]/NMF system was constant up to XNMF = 0.7 and then gradually increased in the range of XNMF ≥ 0.7. Excluding the contribution of the 2D hydrogen-bonding network due to the presence of FA in the low-frequency spectrum band, the XML dependence of the normalized first moment of the low-frequency band in the [MOIm][BF4]/FA and [MOIm][BF4]/NMF systems revealed that the normalized first moment did not remarkably change in the range of XML < 0.7 but drastically increased in XML ≥ 0.7. FT-IR results indicated that the amide C═O band shifted to the low-frequency side with increasing XML for the three mixtures due to the hydrogen bonds. The imidazolium ring C-H band also showed a similar tendency to the amide C═O band. 19F NMR probed the microenvironment of [BF4]- in the mixtures. The [MOIm][BF4]/NMF and [MOIm][BF4]/DMF systems showed an up-field shift of the F atoms of the anion with increasing XML, and the [MOIm][BF4]/FA system exhibited a down-field shift. Steep changes in the chemical shifts were confirmed in the region of XML > 0.8. On the basis of the quantum chemistry calculations, the observed chemical shifts with increasing XML were mainly attributed to the many-body interactions of ions and amides for the [MOIm][BF4]/FA and [MOIm][BF4]/DMF systems. Meanwhile, the long distance between the cation and the anion was due to the high dielectric medium for the [MOIm][BF4]/NMF system, which led to an up-field shift.
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Affiliation(s)
- Masatoshi Ando
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Atsuya Tashiro
- Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Masahiro Kawano
- Department of Chemistry and Applied Chemistry, Graduate School of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Yue Peng
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Toshiyuki Takamuku
- Faculty of Science and Engineering, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Hideaki Shirota
- Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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Robertson H, Nelson ARJ, Prescott SW, Webber GB, Wanless EJ. Cosolvent effects on the structure and thermoresponse of a polymer brush: PNIPAM in DMSO–water mixtures. Polym Chem 2023. [DOI: 10.1039/d2py01487d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Structural characterisation of thermoresponsive polymer brushes in binary DMSO–water mixtures reveals both LCST and UCST behaviour.
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Affiliation(s)
- Hayden Robertson
- College of Science, Engineering and Environment, University of Newcastle, Callaghan, Australia
| | | | | | - Grant B. Webber
- College of Science, Engineering and Environment, University of Newcastle, Callaghan, Australia
| | - Erica J. Wanless
- College of Science, Engineering and Environment, University of Newcastle, Callaghan, Australia
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Biswas A, Mallik BS. Microheterogeneity-Induced Vibrational Spectral Dynamics of Aqueous 1-Alkyl-3-methylimidazolium Tetrafluoroborate Ionic Liquids of Different Cationic Chain Lengths. J Phys Chem B 2022; 126:5523-5533. [PMID: 35833870 DOI: 10.1021/acs.jpcb.2c03561] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have monitored the impacts of an increment in the alkyl chain length of the imidazolium-based tetrafluoroborate ionic liquids on the local deuteroxyl probe modes of interest. For this study, we have taken 1-ethyl-3-methylimidazolium tetrafluoroborate [EMIm][BF4], 1-butyl-3-methylimidazolium tetrafluoroborate [BMIm][BF4], 1-octyl-3-methylimidazolium tetrafluoroborate [OMIm][BF4], and 1-decyl-3-methylimidazolium tetrafluoroborate [DMIm][BF4] ionic liquid solutions with 5% HOD in H2O as the vibrational reporter of the associated ultrafast system dynamics. Classical molecular dynamics (MD) simulations were employed to determine molecular structure and dynamic properties, while the spectral profiles were derived by applying the wavelet analysis of classical trajectories. Spatial distribution functions reveal the heterogeneity within the molecular structures of the ionic liquids (ILs) with varying alkyl chain lengths. The intense position of the spectral peak, the frequency corresponding to the shoulder peak, and the spectral linewidth of the O-D stretch distribution are not influenced by the increment in the cationic chain length. In addition, the ionic liquid (IL) [BMIm][BF4] exhibits a notable trend; the dynamic timescales are longer than the other studied systems. Therefore, we have performed the Voronoi decomposition analysis of the ionic and the polar-apolar domains, symmetrically increasing the length of alkyl chains on the IL cations. Domain analysis reveals structural microheterogeneity; the anions form discrete domains, and the ionic liquid constituting cations form continuous domains irrespective of the alkyl chain length on the imidazolium cations. Therefore, this computational ultrafast spectroscopy study aids in forming a molecular-level picture of the ionic liquid cations and anions in the liquid phase, providing a detailed interpretation of the spectral properties of the probe stretching vibrations.
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Affiliation(s)
- Aritri Biswas
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
| | - Bhabani S Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
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Zhou D, Zhao B, Bai Y, Mukherjee S, Liu J, Bian H, Fang Y. Exploring the Structure and Complexation Dynamics of Azide Anion Recognition by Calix[4]pyrroles in Solution. J Phys Chem Lett 2022; 13:669-675. [PMID: 35023744 DOI: 10.1021/acs.jpclett.1c03962] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The structure and anion recognition dynamics between calix[4]pyrroles and azide (N3-) anions in the form of its TBA+ and Na+ salts were investigated in dimethyl sulfoxide solutions by Fourier transform infrared (FTIR) spectroscopy and ultrafast IR spectroscopy. Vibrational energy redistribution of the N3- anion in the complex is accelerated through hydrogen bonding interactions with the N-H proton of the receptor. Rotational dynamics of the bound N3- is greatly restricted, demonstrating a distinct countercation effect. The detailed binding modes of N3- with the receptor were further evaluated by the density functional theoretical (DFT) calculations and nuclear magnetic resonance (NMR) spectroscopy. All of these measurements support the notion that the calix[4]pyrroles are capable of capturing the azide anion in solution. However, the calix[4]pyrroles may not necessarily undergo a conformational change to a cone-like geometry when they bind to the azide anion in the solution.
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Affiliation(s)
- Dexia Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Boxu Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Yimin Bai
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Somnath Mukherjee
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Jing Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
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6
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Weng W, Weberg AB, Gera R, Tomson NC, Anna JM. Probing Ligand Effects on the Ultrafast Dynamics of Copper Complexes via Midinfrared Pump-Probe and 2DIR Spectroscopies. J Phys Chem B 2021; 125:12228-12241. [PMID: 34723540 DOI: 10.1021/acs.jpcb.1c06370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effects of ligand structural variation on the ultrafast dynamics of a series of copper coordination complexes were investigated using polarization-dependent mid-IR pump-probe spectroscopy and two-dimensional infrared (2DIR) spectroscopy. The series consists of three copper complexes [(R3P3tren)CuIIN3]BAr4F (1PR3, R3P3tren = tris[2-(phosphiniminato)ethyl]amine, BAr4F = tetrakis(pentafluorophenyl)borate) where the number of methyl and phenyl groups in the PR3 ligand are systematically varied across the series (PR3 = PMe3, PMe2Ph, PMePh2). The asymmetric stretching mode of azide in the 1PR3 series is used as a vibrational probe of the small-molecule binding site. The results of the pump-probe measurements indicate that the vibrational energy of azide dissipates through intramolecular pathways and that the bulkier phenyl groups lead to an increase in the spatial restriction of the diffusive reorientation of bound azide. From 2DIR experiments, we characterize the spectral diffusion of the azide group and find that an increase in the number of phenyl groups maps to a broader inhomogeneous frequency distribution (Δ2). This indicates that an increase in the steric bulk of the secondary coordination sphere acts to create more distinct configurations in the local environment that are accessible to the azide group. This work demonstrates how ligand structural variation affects the ultrafast dynamics of a small molecular group bound to the metal center, which could provide insight into the structure-function relationship of the copper coordination complexes and transition-metal coordination complexes in general.
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Affiliation(s)
- Wei Weng
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Alexander B Weberg
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Rahul Gera
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Neil C Tomson
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jessica M Anna
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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7
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Johnson CA, Parker AW, Donaldson PM, Garrett-Roe S. An ultrafast vibrational study of dynamical heterogeneity in the protic ionic liquid ethyl-ammonium nitrate. I. Room temperature dynamics. J Chem Phys 2021; 154:134502. [PMID: 33832238 DOI: 10.1063/5.0044822] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Using ultrafast two-dimensional infrared spectroscopy (2D-IR), a vibrational probe (thiocyanate, SCN-) was used to investigate the hydrogen bonding network of the protic ionic liquid ethyl-ammonium nitrate (EAN) in comparison to H2O. The 2D-IR experiments were performed in both parallel (⟨ZZZZ⟩) and perpendicular (⟨ZZXX⟩) polarizations at room temperature. In EAN, the non-Gaussian lineshape in the FTIR spectrum of SCN- suggests two sub-ensembles. Vibrational relaxation rates extracted from the 2D-IR spectra provide evidence of the dynamical differences between the two sub-ensembles. We support the interpretation of two sub-ensembles with response function simulations of two overlapping bands with different vibrational relaxation rates and, otherwise, similar dynamics. The measured rates for spectral diffusion depend on polarization, indicating reorientation-induced spectral diffusion (RISD). A model of restricted molecular rotation (wobbling in a cone) fully describes the observed spectral diffusion in EAN. In H2O, both RISD and structural spectral diffusion contribute with similar timescales. This complete characterization of the dynamics at room temperature provides the basis for the temperature-dependent measurements in Paper II of this series.
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Affiliation(s)
- Clinton A Johnson
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, USA
| | - Anthony W Parker
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot, United Kingdom
| | - Paul M Donaldson
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Harwell Campus, Didcot, United Kingdom
| | - Sean Garrett-Roe
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, USA
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Hoffmann M, Drescher S, Ihling C, Hinderberger D, Schwieger C. An Azidolipid Monolayer - Transitions, Miscibility, and UV Reactivity Studied by Infrared Reflection Absorption Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12804-12815. [PMID: 33090001 DOI: 10.1021/acs.langmuir.0c01726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, we characterized monolayers of an azide-modified lipid at the air-water interface, pure and in its mixtures with the model lipid DPPC, with the aim of proving its potential to be applied for photo-cross-linking with other molecules. We chose a phospholipid bearing a terminal azide group in one of its hydrophobic tails to study its monolayer characteristics with the Langmuir film balance technique. Furthermore, we performed infrared reflection absorption spectroscopy (IRRAS) to get detailed insights into the organization of those monolayers as well as high-resolution mass spectrometry (HRMS) to see the effects of UV-irradiation on the lipids' chemical structure and organization. Our results suggest that in expanded monolayers of pure azide-modified membrane lipids, the azido-terminated chain folds back toward the air-water interface. Above the LE/LC (liquid-expanded/liquid-condensed) phase transition, the chains stretched, and thus, the azide group detaches from the interface. From temperature-dependent monolayer compressions, we evaluated all relevant thermodynamic parameters of the monolayers, such as the phase transition pressure, the critical temperature, and the triple point, and compare them to those of model lipids. For future applications, we studied the miscibility of the azide-modified lipid with DPPC in monolayers and found at least a certain miscibility over all investigated mixing ratios ranging from 10 to 75% of the azidolipid. Finally, we irradiated the azidolipid monolayer with UV light at 305 nm and measured photodissociation of the azide, leading to chemical cross-linking with other lipids, which shows the potential to be used as a cross-linking agent within self-assembled lipid or lipid/protein layers.
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Affiliation(s)
- Matthias Hoffmann
- Institute of Chemistry - Complex Self-Organizing Systems, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology - Interdisciplinary Research Center HALOmem, Charles Tanford Protein Center, MLU Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle (Saale), Germany
| | - Simon Drescher
- Institute of Pharmacy - Biophysical Pharmacy, MLU Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
- Phospholipid Research Center, Im Neuenheimer Feld 515, 69120 Heidelberg, Germany
| | - Christian Ihling
- Institute of Pharmacy - Pharmaceutical Chemistry and Bioanalytics, Charles Tanford Protein Center, MLU Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle (Saale), Germany
| | - Dariush Hinderberger
- Institute of Chemistry - Complex Self-Organizing Systems, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology - Interdisciplinary Research Center HALOmem, Charles Tanford Protein Center, MLU Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle (Saale), Germany
| | - Christian Schwieger
- Institute of Chemistry - Complex Self-Organizing Systems, Martin Luther University (MLU) Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology - Interdisciplinary Research Center HALOmem, Charles Tanford Protein Center, MLU Halle-Wittenberg, Kurt-Mothes-Str. 3a, 06120 Halle (Saale), Germany
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9
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Flesch S, Domenianni LI, Vöhringer P. Probing the primary processes of a triazido-cobalt(III) complex with femtosecond vibrational and electronic spectroscopies. Photochemical selectivity and multi-state reactivity. Phys Chem Chem Phys 2020; 22:25618-25630. [PMID: 33147305 DOI: 10.1039/d0cp04865h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The elementary dynamics following 355 nm-excitation of the complex, mer-[Co(dien)(N3)3], were studied in liquid dimethyl sulfoxide (DMSO) solution using femtosecond-ultraviolet-pump/mid-infrared-to-near-ultraviolet probe spectroscopy in conjunction with electronic structure calculations based on density functional theory. Following the initial N3--to-Co charge transfer excitation, the parent complex undergoes an ultrafast metal-to-ligand back electron transfer (BET) within 2 ps thereby populating a metal-centered singlet excited state, 1MC, which can either repopulate the electronic ground state or cleave an azido ligand from the ligand sphere surrounding the metal center. From the asymptotic ground-state bleaching signal after 1 ns, a primary quantum yield for ligand loss of ca. 13% is estimated. The IR-spectrum of the product demonstrates that the photodissociation occurs selectively from the equatorial binding site thereby leading exclusively to the solvolysis product, mer-trans-[Co(dien)(N3)2(DMSO)]+, which features the solvent ligand in the equatorial coordination plane and the azides in the two axial positions. The remarkable photochemical selectivity is traced back to the initial BET and the nature of the intermediate state, 1MC, whose electronic structure entails occupancy of the σ-antibonding d(x2-y2)-orbital. A stereochemical scrambling at the stage of the primary penta-coordinated diazido product is kinetically inhibited on the singlet surface by an energy barrier of roughly 27 kJ mol-1. Primary penta-coordinated products that may be born on the triplet surface are funneled to their singlet ground-state preferentially from geometries with trans-oriented azido ligands thereby also preventing a stereochemical isomerization that could possibly arise from an intersystem crossing.
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Affiliation(s)
- Stefan Flesch
- Lehrstuhl für Molekulare Physikalische Chemie, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms Universität, Wegelerstraße 12, 53115 Bonn, Germany.
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10
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Müller S, Schwieger C, Gruhle K, Garamus VM, Hause G, Meister A, Drescher S. Azide-Modified Membrane Lipids: Miscibility with Saturated Phosphatidylcholines. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12439-12450. [PMID: 31456406 DOI: 10.1021/acs.langmuir.9b01842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, we describe the miscibility of four azide-modified membrane phospholipids (azidolipids) with conventional phospholipids. The azidolipids bear an azide group at different positions of the sn-1 or sn-2 alkyl chain and they further differ in the type of linkage (ester vs ether) of the sn-2 alkyl chain. Investigations regarding the miscibility of the azidolipids with bilayer-forming phosphatidylcholines will evaluate lipid mixtures that are suitable for the production of stable azidolipid-doped liposomes. These vesicles then serve as model membranes for the incorporation of model peptides or proteins in the future. The miscibility of both types of phospholipids was studied by calorimetric assays, electron microscopy, small-angle X-ray scattering, infrared spectroscopy, and dynamic light scattering to provide a complete biophysical characterization of the mixed systems.
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Affiliation(s)
- Sindy Müller
- Institute of Pharmacy-Biophysical Pharmacy , Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4 , 06120 Halle (Saale) , Germany
| | - Christian Schwieger
- Institute of Chemistry , MLU Halle-Wittenberg , von-Danckelmann-Platz 4 , 06120 Halle (Saale) , Germany
| | - Kai Gruhle
- Institute of Pharmacy-Biophysical Pharmacy , Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4 , 06120 Halle (Saale) , Germany
| | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht (HZG): Zentrum für Material- und Küstenforschung GmbH , Max-Planck-Strasse 1 , 21502 Geesthacht , Germany
| | - Gerd Hause
- Biocenter , MLU Halle-Wittenberg , Weinbergweg 22 , 06120 Halle (Saale) , Germany
| | - Annette Meister
- ZIK HALOmem and Institute of Biochemistry and Biotechnology, Charles Tanford Protein Center , MLU Halle-Wittenberg , Kurt-Mothes-Strasse 3a , 06120 Halle (Saale) , Germany
| | - Simon Drescher
- Institute of Pharmacy-Biophysical Pharmacy , Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4 , 06120 Halle (Saale) , Germany
- Institute of Pharmacy , University of Greifswald , Friedrich-Ludwig-Jahn-Str. 17 , 17489 Greifswald , Germany
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11
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Straub S, Domenianni LI, Lindner J, Vöhringer P. Photoinduced Dynamics of a Diazidocobalt(III) Complex Studied by Femtosecond UV-Pump/IR-to-Vis-Probe Spectroscopy. J Phys Chem B 2019; 123:7893-7904. [DOI: 10.1021/acs.jpcb.9b07210] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Steffen Straub
- Abteilung für Molekulare Physikalische Chemie, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität, Wegelerstrasse 12, 53115 Bonn, Germany
| | - Luis I. Domenianni
- Abteilung für Molekulare Physikalische Chemie, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität, Wegelerstrasse 12, 53115 Bonn, Germany
| | - Jörg Lindner
- Abteilung für Molekulare Physikalische Chemie, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität, Wegelerstrasse 12, 53115 Bonn, Germany
| | - Peter Vöhringer
- Abteilung für Molekulare Physikalische Chemie, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität, Wegelerstrasse 12, 53115 Bonn, Germany
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12
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Wei Q, Zhang M, Zhou D, Li X, Bian H, Fang Y. Ultrafast Hydrogen Bond Exchanging between Water and Anions in Concentrated Ionic Liquid Aqueous Solutions. J Phys Chem B 2019; 123:4766-4775. [PMID: 31082232 DOI: 10.1021/acs.jpcb.9b03504] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The mixtures of 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4) ionic liquids (ILs) and water as a function of IL concentrations have been investigated by Fourier transform infrared (FTIR) spectroscopy and ultrafast two-dimensional IR (2D IR) spectroscopy. FTIR spectra of the mixtures resolve two different types of water species, one interacting with the BF4- anions and the other associated with bulklike water molecules. These two water species are in a dynamic equilibrium through forming different hydrogen bonding configurations which are separated by more than 100 cm-1 in the IR spectra. The structural dynamics of the IL mixtures are further revealed by monitoring the vibrational relaxation dynamics of the OD stretching group of interfacial water molecules hydrogen bonded to BF4- anions. With the increase of the IL bulk concentration, vibrational population and rotational dynamics of the interfacial water molecules can be described by a biexponential decay function and are strongly dependent on the IL concentrations. Furthermore, the ultrafast hydrogen bond exchanging between water and BF4- anions in the ILs are also measured using 2D IR spectroscopy. The average hydrogen bond exchanging rate is determined to be 19 ± 4 ps, which is around 3 times slower than that in the NaBF4 electrolyte aqueous solution. The much slower hydrogen bond exchanging rate indicates that the local structure of ILs and water molecules are strongly mediated by the steric effect of the cationic group in the ILs, which is proposed to be responsible for the formation of the heterogeneous structure in the IL mixtures. By using SCN- as the anionic probe, the structural inhomogeneity in the IL solutions can be confirmed from the distinct rotational dynamics of the SCN-, which is segregated from the rotational dynamics of water molecules in the IL mixtures.
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Affiliation(s)
- Qianshun Wei
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Miaomiao Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Dexia Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Xiaoqian Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China
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13
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Hunger J, Roy S, Grechko M, Bonn M. Dynamics of Dicyanamide in Ionic Liquids is Dominated by Local Interactions. J Phys Chem B 2019; 123:1831-1839. [PMID: 30717596 PMCID: PMC6398149 DOI: 10.1021/acs.jpcb.8b10849] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
![]()
The
dynamics of probe molecules is commonly used to investigate
the structural dynamics of room-temperature ionic liquids; however,
the extent to which this dynamics reflects the dynamics of the ionic
liquids or is probe specific has remained debated. Here, we explore
to what extent the vibrational and rotational dynamics of the dicyanamide
anion, a common ionic liquid anion, correlates with the structural
relaxation of ionic liquids. We use polarization-resolved, ultrafast
infrared spectroscopy to probe the temperature- and probe-concentration-dependent
dynamics of samples with small amounts of 1-ethyl-3-methylimidazolium
([emim]+) dicyanamide ([DCA]−) dissolved
in four [emim]+-based ionic liquids with tetrafluoroborate
([BF4]−), bis(trifluoromethylsulfonyl)imide
([NTf2]−), ethylsufate ([EtSO4]−), and triflate ([OTf]−) as
anions. The transient spectra after broad-band excitation at 2000–2300
cm–1, resonant with the symmetric and antisymmetric
C≡N stretching vibrations, initially contain oscillatory signatures
due to the vibrational coherence between both modes. Vibrational population
relaxation occurs on two distinct time scales, ∼6–7
and ∼15–20 ps. The vibrational dynamics is rather insensitive
to the details of the ionic liquid anion and temperature, except for
the slow vibrational relaxation component. The decay of the excitation
anisotropy, a measure of the rotational dynamics of [DCA]−, markedly depends on temperature, and the obtained decay time exhibits
an activation energy of ∼15–21 kJ/mol. Remarkably, neither
the rotation time nor the activation energy can be simply explained
by the variation of the macroscopic viscosity. Hence, our results
suggest that the dynamics of dicyanamide is only in part representative
of the ionic liquid structural dynamics. Rather, the dynamics of the
probe anion seems to be determined by the specific interaction of
[DCA]− with the ionic liquid’s ions for the
class of [emim]+-based ionic liquids studied here.
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Affiliation(s)
- Johannes Hunger
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Soham Roy
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9 , 55128 Mainz , Germany
| | - Maksim Grechko
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
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14
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Wei Q, Zhou D, Li X, Chen Y, Bian H. Structural Dynamics of Dimethyl Sulfoxide Aqueous Solutions Investigated by Ultrafast Infrared Spectroscopy: Using Thiocyanate Anion as a Local Vibrational Probe. J Phys Chem B 2018; 122:12131-12138. [DOI: 10.1021/acs.jpcb.8b10058] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qianshun Wei
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Dexia Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Xiaoqian Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Yuwan Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
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15
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Wang YT, Li KL, Wei LG, Ma YC. Probing Molecular Interactions in 1-Butyl-3-methylimidazolium Chloride-Water and 2,6-Dimethoxyphenol Mixtures Using Attenuated Total Reflection Infrared Spectroscopy. CHINESE J CHEM PHYS 2017. [DOI: 10.1063/1674-0068/30/cjcp1611203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Yan-tao Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
- Laboratory of EA4297 TIMR, University of Technology of Compiègne, Compiègne 60200, France
| | - Kun-lan Li
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Li-gang Wei
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Ying-chong Ma
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
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16
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Lindner S, Gruhle K, Schmidt R, Garamus VM, Ramsbeck D, Hause G, Meister A, Sinz A, Drescher S. Azide-Modified Membrane Lipids: Synthesis, Properties, and Reactivity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:4960-4973. [PMID: 28457130 DOI: 10.1021/acs.langmuir.7b00228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In the present work, we describe the synthesis and the temperature-dependent behavior of photoreactive membrane lipids as well as their capability to study peptide/lipid interactions. The modified phospholipids contain an azide group either in the middle part or at the end of an alkyl chain and also differ in the linkage (ester vs ether) of the second alkyl chain. The temperature-dependent aggregation behavior of the azidolipids was studied using differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, and small-angle X-ray scattering (SAXS). Aggregate structures were visualized by stain and cryo transmission electron microscopy (TEM) and were further characterized by dynamic light scattering (DLS). We show that the position of the azide group and the type of linkage of the alkyl chain at the sn-2 position of the glycerol influences the type of aggregates formed as well as their long-term stability: P10AzSPC and r12AzSHPC show the formation of extrudable liposomes, which are stable in size during storage. In contrast, azidolipids that carry a terminal azido moiety either form extrudable liposomes, which show time-dependent vesicle fusion (P15AzPdPC), or self-assemble in large sheet-like, nonextrudable aggregates (r15AzPdHPC) where the lipid molecules are arranged in an interdigitated orientation at temperatures below Tm (LβI phase). Finally, a P10AzSPC:DMPC mixture was used for photochemically induced cross-linking experiments with a transmembrane peptide (WAL-peptide) to demonstrate the applicability of the azidolipids for the analysis of peptide/lipid interactions. The efficiency of photo-cross-linking was monitored by attenuated total reflection infrared (ATR-IR) spectroscopy and mass spectrometry (MS).
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Affiliation(s)
- Sindy Lindner
- Institute of Pharmacy - Pharmaceutical Chemistry and Bioanalytics, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
- Institute of Pharmacy - Biophysical Pharmacy, MLU Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Kai Gruhle
- Institute of Pharmacy - Biophysical Pharmacy, MLU Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Rico Schmidt
- Institute of Pharmacy - Pharmaceutical Chemistry and Bioanalytics, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht: Zentrum für Material und Küstenforschung GmbH (HZG), Max-Planck-Strasse 1, 21502 Geesthacht, Germany
| | - Daniel Ramsbeck
- Fraunhofer Institute for Cell Therapy and Immunology IZI , Weinbergweg 22, 06120 Halle (Saale), Germany
| | - Gerd Hause
- Biocenter, MLU Halle-Wittenberg , Weinbergweg 22, 06120 Halle (Saale), Germany
| | - Annette Meister
- Institute of Chemistry and Institute of Biochemistry and Biotechnology, MLU Halle-Wittenberg , von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Andrea Sinz
- Institute of Pharmacy - Pharmaceutical Chemistry and Bioanalytics, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Simon Drescher
- Institute of Pharmacy - Biophysical Pharmacy, MLU Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
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17
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Biswas B, Mondal S, Singh PC. Role of Hydrogen Bond in the Solvation Behavior of the Binary Mixtures Containing Fluorocarbon Alcohol Molecules and Chloroform: An Experimental and Theoretical Study. ChemistrySelect 2016. [DOI: 10.1002/slct.201601118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Biswajit Biswas
- Department of Spectroscopy; Indian Association for the Cultivation of Science; Kolkata 700032 India
| | - Saptarsi Mondal
- Department of Spectroscopy; Indian Association for the Cultivation of Science; Kolkata 700032 India
| | - Prashant C. Singh
- Department of Spectroscopy; Indian Association for the Cultivation of Science; Kolkata 700032 India
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18
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Lee C, Son H, Park S. Effect of Hydrogen Bonds on the Vibrational Relaxation and Orientational Relaxation Dynamics of HN3 and N3(-) in Solutions. J Phys Chem B 2016; 120:9723-31. [PMID: 27537433 DOI: 10.1021/acs.jpcb.6b06239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hydrogen bonds (H-bonds) play an important role in determining the structures and dynamics of molecular systems. In this work, we investigated the effect of H-bonds on the vibrational population relaxation and orientational relaxation dynamics of HN3 and N3(-) in methanol (CH3OH) and N,N-dimethyl sulfoxide (DMSO) using polarization-controlled infrared pump-probe spectroscopy and quantum chemical calculations. Our detailed analysis of experimental and computational results reveals that both vibrational population relaxation and orientational relaxation dynamics of HN3 and N3(-) in CH3OH and DMSO are substantially dependent on the strength of the H-bonds between the probing solute and its surrounding solvent. Especially in the case of N3(-) in CH3OH, the vibrational population relaxation of N3(-) is found to occur by a direct intermolecular vibrational energy transfer to CH3OH due to large vibrational coupling strength. The orientational relaxation dynamics of HN3 and N3(-), which are well fit by a biexponential function, are analyzed by the wobbling-in-a-cone model and extended Debye-Stokes-Einstein equation. Depending on the intermolecular interactions, the slow overall orientational relaxation occurs under slip, stick, and superstick boundary conditions. For HN3 and N3(-) in CH3OH and DMSO, the vibrational population relaxation becomes faster but the orientational relaxation becomes slower as the H-bond strength is increased. Our current results imply that H-bonds have significant effects on the vibrational population relaxation and orientational relaxation dynamics of a small solute whose size is comparable to the size of the solvent.
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Affiliation(s)
- Chiho Lee
- Department of Chemistry, Korea University , Seoul 136-701, Korea
| | - Hyewon Son
- Department of Chemistry, Korea University , Seoul 136-701, Korea
| | - Sungnam Park
- Department of Chemistry, Korea University , Seoul 136-701, Korea
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19
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Indra S, Guchhait B, Biswas R. Structural anomaly and dynamic heterogeneity in cycloether/water binary mixtures: Signatures from composition dependent dynamic fluorescence measurements and computer simulations. J Chem Phys 2016; 144:124506. [DOI: 10.1063/1.4943967] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Sandipa Indra
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700098, India
| | - Biswajit Guchhait
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700098, India
| | - Ranjit Biswas
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700098, India
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20
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Gupta S. Solvation chemistry through synergism: static and dynamic features of n-amyl alcohol–chloroform binary solvent mixture. RSC Adv 2016. [DOI: 10.1039/c6ra23231k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, we shed some light on the origin of the synergistic solvation structure in a n-amyl alcohol–chloroform (n-PtOH–CHCl3) binary solvent mixture.
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21
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Dutta S, Ren Z, Brinzer T, Garrett-Roe S. Two-dimensional ultrafast vibrational spectroscopy of azides in ionic liquids reveals solute-specific solvation. Phys Chem Chem Phys 2015; 17:26575-9. [PMID: 26193916 DOI: 10.1039/c5cp02119g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stereochemistry and the reaction rates of bimolecular nucleophilic substitution reactions involving azides in ionic liquids are governed by solute-solvent interactions. Two-dimensional ultrafast vibrational spectroscopy (2D-IR) shows that the picosecond dynamics of inorganic azides are substantially slower than organic azides in a series of homologous imidazolium ionic liquids. In water, both organic and inorganic azides spectrally diffuse with a ∼2 ps time constant. In the aprotic solvent tetrahydrofuran, both kinds of azides spectrally diffuse on a timescale >5 ps. In ionic liquids, like 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]), organic azides spectrally diffuse with a 2-4 ps time constant, and inorganic azides spectrally diffuse with a >40 ps time constant. Such a striking difference suggests that neutral (organic) and charged (inorganic) azides are incorporated in the ionic liquids with different solvation structures.
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Affiliation(s)
- Samrat Dutta
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
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22
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Czurlok D, von Domaros M, Thomas M, Gleim J, Lindner J, Kirchner B, Vöhringer P. Femtosecond 2DIR spectroscopy of the nitrile stretching vibration of thiocyanate anions in liquid-to-supercritical heavy water. Spectral diffusion and libration-induced hydrogen-bond dynamics. Phys Chem Chem Phys 2015; 17:29776-85. [DOI: 10.1039/c5cp05237h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Femtosecond two-dimensional infrared (2DIR) spectroscopy was carried out to study the dynamics of vibrational spectral diffusion of the nitrile stretching vibration of thiocyanate.
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Affiliation(s)
- Denis Czurlok
- Institut für Physikalische und Theoretische Chemie
- Rheinische Friedrich-Wilhelms-Universität
- 53115 Bonn
- Germany
| | - Michael von Domaros
- Institut für Physikalische und Theoretische Chemie
- Rheinische Friedrich-Wilhelms-Universität
- 53115 Bonn
- Germany
| | - Martin Thomas
- Institut für Physikalische und Theoretische Chemie
- Rheinische Friedrich-Wilhelms-Universität
- 53115 Bonn
- Germany
| | - Jeannine Gleim
- Institut für Physikalische und Theoretische Chemie
- Rheinische Friedrich-Wilhelms-Universität
- 53115 Bonn
- Germany
| | - Jörg Lindner
- Institut für Physikalische und Theoretische Chemie
- Rheinische Friedrich-Wilhelms-Universität
- 53115 Bonn
- Germany
| | - Barbara Kirchner
- Institut für Physikalische und Theoretische Chemie
- Rheinische Friedrich-Wilhelms-Universität
- 53115 Bonn
- Germany
| | - Peter Vöhringer
- Institut für Physikalische und Theoretische Chemie
- Rheinische Friedrich-Wilhelms-Universität
- 53115 Bonn
- Germany
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23
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Compton R, Gerardi HK, Weidinger D, Brown DJ, Dressick WJ, Heilweil EJ, Owrutsky JC. Spectra and relaxation dynamics of the pseudohalide (PS) vibrational bands for Ru(bpy)2(PS)2 complexes, PS=CN, NCS and N3. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2012.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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25
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Son H, Kwon Y, Kim J, Park S. Rotational Dynamics of Metal Azide Ion Pairs in Dimethylsulfoxide Solutions. J Phys Chem B 2013; 117:2748-56. [DOI: 10.1021/jp312055f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hyewon Son
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - YoungAh Kwon
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - Jinwoo Kim
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - Sungnam Park
- Department of Chemistry, Korea University, Seoul 136-701, Korea
- Multidimensional Spectroscopy
Laboratory, Korea Basic Science Institute, Seoul 136-713, Korea
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26
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Shirota H, Biswas R. Intermolecular/Interionic Vibrations of 1-Methyl-3-n-octylimidazolium Tetrafluoroborate Ionic Liquid and H2O Mixtures. J Phys Chem B 2012; 116:13765-73. [DOI: 10.1021/jp307436t] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hideaki Shirota
- Department of Nanomaterial Science & Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Ranjit Biswas
- Chemical, Biological and Macromolecular
Sciences, S. N. Bose National Centre for Basic Sciences, J. D. Block, Sec.III, Salt Lake, Kolkata 700 098, West Bengal,
India
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27
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King JT, Ross MR, Kubarych KJ. Water-Assisted Vibrational Relaxation of a Metal Carbonyl Complex Studied with Ultrafast 2D-IR. J Phys Chem B 2012; 116:3754-9. [DOI: 10.1021/jp2125747] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John T. King
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan
48109, United States
| | - Matthew R. Ross
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan
48109, United States
| | - Kevin J. Kubarych
- Department
of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan
48109, United States
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28
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Gupta S, Rather SR, Kundu M, Sen P. Origin of strong synergism in weakly perturbed binary solvent system: a case study of primary alcohols and chlorinated methanes. J Phys Chem B 2012; 116:1345-55. [PMID: 22200245 DOI: 10.1021/jp207741h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A strong synergistic solvation was observed for the mixtures of hydrogen bond donating and accepting solvent pairs. The nature of the interactions between two solvent pairs was investigated with different dye molecules viz. coumarin 480, coumarin 153, 4-aminophthalimide, and p-nitroaniline. Coumarin 480 in differenet alcohols-CHCl(3) (alcohols: MeOH, EtOH, BuOH) binary mixture shows a strong synergism, which is explained in the backdrop of solvent-solvent interactions. Fluorescence quenching of C480 by 1,2-phenylenediamine in the binary solvent mixture exhibited the maximum deviation in quenching constant corresponding to ~0.45 mol fraction of MeOH in MeOH-CHCl(3) binary mixture and hence suggested the maximum extent of hydrogen-bonding interactions prevailing at this proportion of mixture. The solvation behavior of MeOH-CHCl(3) mixture shows strong probe dependence with no synergism observed in p-nitroaniline, which is ascribed to its higher ground state dipole moment (8.8 D) relative to C480 (6.3 D). Interestingly, the strong synergistic signature observed through spectrophotometric measurement of C480 in alcohol-CHCl(3) binary mixture is absent when studied by fluorescence measurement. The higher excited state dipole moment of coumarin 480 (13.1 D) is considered to be the driving force for the absence of synergism in the excited state. In such strongly perturbed systems (due to high dipole moment values) the dominant phenomenon is preferential solvation. Analysis of proton NMR of MeOH-CHCl(3) binary solvent mixture indicates the existence of MeOH-CHCl(3) clusters in the stoichiometric ratio of 1:2.15. Refractive index measurement also infers the existence of hydrogen bonded network structure between MeOH and CHCl(3). A modified Bosch solvent exchange model has been used to determine the feasibility of synergistic behavior and polarity parameter of the mixed solvent structure of MeOH-CHCl(3) binary solvent mixture.
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Affiliation(s)
- Shradhey Gupta
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, UP, PIN-208 016, India
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29
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Ohta K, Tayama J, Tominaga K. Ultrafast vibrational dynamics of SCN− and N3− in polar solvents studied by nonlinear infrared spectroscopy. Phys Chem Chem Phys 2012; 14:10455-65. [DOI: 10.1039/c2cp40244k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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30
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Olschewski M, Knop S, Lindner J, Vöhringer P. Vibrational relaxation of azide ions in liquid-to-supercritical water. J Chem Phys 2011; 134:214504. [DOI: 10.1063/1.3598108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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31
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Daschakraborty S, Ranjit B. Stokes Shift Dynamics in (Ionic Liquid + Polar Solvent) Binary Mixtures: Composition Dependence. J Phys Chem B 2011; 115:4011-24. [DOI: 10.1021/jp200407m] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Snehasis Daschakraborty
- Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700098, India
| | - Biswas Ranjit
- Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700098, India
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32
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Lind JU, Hansen TS, Daugaard AE, Hvilsted S, Andresen TL, Larsen NB. Solvent Composition Directing Click-Functionalization at the Surface or in the Bulk of Azide-Modified PEDOT. Macromolecules 2011. [DOI: 10.1021/ma102149u] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johan U. Lind
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Ørsteds Plads 345ø, 2800 Kgs. Lyngby, Denmark
| | - Thomas S. Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Ørsteds Plads 345ø, 2800 Kgs. Lyngby, Denmark
| | - Anders E. Daugaard
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads, Building 227, 2800 Kgs. Lyngby, Denmark
| | - Søren Hvilsted
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads, Building 227, 2800 Kgs. Lyngby, Denmark
| | - Thomas L. Andresen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Ørsteds Plads 345ø, 2800 Kgs. Lyngby, Denmark
| | - Niels B. Larsen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech, Ørsteds Plads 345ø, 2800 Kgs. Lyngby, Denmark
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33
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Das DK, Das AK, Mondal T, Mandal AK, Bhattacharyya K. Ultrafast FRET in Ionic Liquid-P123 Mixed Micelles: Region and Counterion Dependence. J Phys Chem B 2010; 114:13159-66. [DOI: 10.1021/jp106689w] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dibyendu Kumar Das
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Atanu Kumar Das
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Tridib Mondal
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Amit Kumar Mandal
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kankan Bhattacharyya
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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34
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Houchins C, Weidinger D, Owrutsky JC. Vibrational Spectroscopy and Dynamics of the Hydrazoic and Isothiocyanic Acids in Water and Methanol. J Phys Chem A 2010; 114:6569-74. [DOI: 10.1021/jp102397b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Cassidy Houchins
- Chemistry Division, Code 6111, U.S. Naval Research Laboratory, Washington, D.C. 20375-5342
| | - Daniel Weidinger
- Chemistry Division, Code 6111, U.S. Naval Research Laboratory, Washington, D.C. 20375-5342
| | - Jeffrey C. Owrutsky
- Chemistry Division, Code 6111, U.S. Naval Research Laboratory, Washington, D.C. 20375-5342
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35
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Masaki T, Nishikawa K, Shirota H. Microscopic Study of Ionic Liquid−H2O Systems: Alkyl-Group Dependence of 1-Alkyl-3-Methylimidazolium Cation. J Phys Chem B 2010; 114:6323-31. [DOI: 10.1021/jp1017967] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takashi Masaki
- Department of Nanomaterial Science, Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Keiko Nishikawa
- Department of Nanomaterial Science, Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Hideaki Shirota
- Department of Nanomaterial Science, Graduate School of Advanced Integration Science, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
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36
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Gao Y, Zhang L, Wang Y, Li H. Probing Electron Density of H-Bonding between Cation−Anion of Imidazolium-Based Ionic Liquids with Different Anions by Vibrational Spectroscopy. J Phys Chem B 2010; 114:2828-33. [DOI: 10.1021/jp910528m] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan Gao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Liqun Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yong Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Haoran Li
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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37
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Noack K, Kiefer J, Leipertz A. Concentration-Dependent Hydrogen-Bonding Effects on the Dimethyl Sulfoxide Vibrational Structure in the Presence of Water, Methanol, and Ethanol. Chemphyschem 2009; 11:630-7. [DOI: 10.1002/cphc.200900691] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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38
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Adhikari A, Das DK, Sasmal DK, Bhattacharyya K. Ultrafast FRET in a Room Temperature Ionic Liquid Microemulsion: A Femtosecond Excitation Wavelength Dependence Study. J Phys Chem A 2009; 113:3737-43. [DOI: 10.1021/jp808777w] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aniruddha Adhikari
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Dibyendu Kumar Das
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Dibyendu Kumar Sasmal
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kankan Bhattacharyya
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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39
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Dey S, Sasmal DK, Das DK, Bhattacharyya K. A Femtosecond Study of Solvation Dynamics and Anisotropy Decay in a Catanionic Vesicle: Excitation-Wavelength Dependence. Chemphyschem 2008; 9:2848-55. [DOI: 10.1002/cphc.200800658] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Choi JH, Oh KI, Cho M. Azido-derivatized compounds as IR probes of local electrostatic environment: Theoretical studies. J Chem Phys 2008; 129:174512. [DOI: 10.1063/1.3001915] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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41
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Adhikari A, Dey S, Das DK, Mandal U, Ghosh S, Bhattacharyya K. Solvation Dynamics in Ionic Liquid Swollen P123 Triblock Copolymer Micelle: A Femtosecond Excitation Wavelength Dependence Study. J Phys Chem B 2008; 112:6350-7. [DOI: 10.1021/jp7118857] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aniruddha Adhikari
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Shantanu Dey
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Dibyendu Kumar Das
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Ujjwal Mandal
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Subhadip Ghosh
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kankan Bhattacharyya
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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42
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Zhang L, Xu Z, Wang Y, Li H. Prediction of the Solvation and Structural Properties of Ionic Liquids in Water by Two-Dimensional Correlation Spectroscopy. J Phys Chem B 2008; 112:6411-9. [DOI: 10.1021/jp8001349] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Liqun Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China, and Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Zheng Xu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China, and Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Yong Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China, and Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Haoran Li
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China, and Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
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43
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Chang HC, Jiang JC, Chang CY, Su JC, Hung CH, Liou YC, Lin SH. Structural Organization in Aqueous Solutions of 1-Butyl-3-methylimidazolium Halides: A High-Pressure Infrared Spectroscopic Study on Ionic Liquids. J Phys Chem B 2008; 112:4351-6. [DOI: 10.1021/jp0773482] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hai-Chou Chang
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Jyh-Chiang Jiang
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Chao-Yen Chang
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Jong-Chang Su
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Chao-Hsin Hung
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - You-Chang Liou
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Sheng Hsien Lin
- Department of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei 106, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
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44
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Adhikari A, Dey S, Mandal U, Das DK, Ghosh S, Bhattacharyya K. Femtosecond Solvation Dynamics in Different Regions of a Bile Salt Aggregate: Excitation Wavelength Dependence. J Phys Chem B 2008; 112:3575-80. [DOI: 10.1021/jp7106445] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Aniruddha Adhikari
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Shantanu Dey
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Ujjwal Mandal
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Dibyendu Kumar Das
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Subhadip Ghosh
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kankan Bhattacharyya
- Physical Chemistry Department, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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45
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CHANG HC, JIANG JC, LIOU YC, HUNG CH, LAI TY, LIN SH. Local Structures of Water in 1-Butyl-3-methylimidazolium Tetrafluoroborate Probed by High-Pressure Infrared Spectroscopy. ANAL SCI 2008; 24:1305-9. [DOI: 10.2116/analsci.24.1305] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | - Jyh-Chiang JIANG
- Department of Chemical Engineering, National Taiwan University of Science and Technology
| | | | | | - Ting-Yun LAI
- Department of Chemistry, National Dong Hwa University
| | - Sheng Hsien LIN
- nstitute of Atomic and Molecular Sciences, Academia Sinica
- Department of Applied Chemistry, National Chiao Tung University
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46
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Adhikari A, Sahu K, Dey S, Ghosh S, Mandal U, Bhattacharyya K. Femtosecond Solvation Dynamics in a Neat Ionic Liquid and Ionic Liquid Microemulsion: Excitation Wavelength Dependence. J Phys Chem B 2007; 111:12809-16. [DOI: 10.1021/jp075693l] [Citation(s) in RCA: 139] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aniruddha Adhikari
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kalyanasis Sahu
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Shantanu Dey
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Subhadip Ghosh
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Ujjwal Mandal
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
| | - Kankan Bhattacharyya
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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