1
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Ghosh A, Pandey A, Sengupta A, Kathirvelu V, Harmalkar SS, Dhuri SN, Singh KS, Ghanty TK. Experimental and Theoretical Investigation on the Extractive Mass Transfer of Eu 3+ Ions Using Novel Amide Ligands in 1-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide. Inorg Chem 2023; 62:14678-14693. [PMID: 37624686 DOI: 10.1021/acs.inorgchem.3c01963] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
Novel amide ligands in the ionic liquid (1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) were utilized for the liquid-liquid biphasic mass transfer of Eu3+ ions from aqueous acidic waste solution. The cation exchange mechanism was found to be operative with the formation of [Eu(NO3)2L3]+ species (L = 4-chloro-N-(1-methyl-1H-pyrazol-3-yl)picolinamide). However, the presence of an inner-sphere water molecule was revealed by density functional theory (DFT) calculations. The viscosity-induced slower kinetics was evidenced during mass transfer, which was improved by increasing temperature. The process was exothermic in nature. The improvement in the kinetics of extractive mass transfer at higher temperatures is evinced by a reduction in the distribution ratio value. The spontaneity of the reaction was evidenced through the negative Gibbs free energy value, whereas the process enhances the entropy of the system, probably by releasing water molecules at least partially during complexation. The structures of bare ligands and complexes have been optimized by using DFT calculations. A high value of complexation energy, solvation energy, and associated enthalpy and free energy change reveal the efficacy in binding Eu with O and N donor atoms. In addition, natural population analysis, atoms-in-molecules analysis, and energy decomposition analysis have been employed to explore the nature of bonding existing in Eu-O and Eu-N bonds.
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Affiliation(s)
- Ayan Ghosh
- Laser and Plasma Technology Division, Beam Technology Development Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Amit Pandey
- Department of Applied Sciences, National Institute of Technology Goa, Ponda, Goa 403401, India
| | - Arijit Sengupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- HomiBhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Velavan Kathirvelu
- Department of Applied Sciences, National Institute of Technology Goa, Ponda, Goa 403401, India
| | | | - Sunder N Dhuri
- School of Chemical Sciences, Goa University, Taleigao, Goa 403206, India
| | - Keisham S Singh
- Bioorganic Chemistry Laboratory, CSIR-National Institute of Oceanography, Dona Paula, Goa 403004, India
| | - Tapan K Ghanty
- HomiBhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Bio-Science Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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2
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Oliveira A, Filipe HAL, Ramalho JP, Salvador A, Geraldes CFGC, Moreno MJ, Loura LMS. Modeling Gd 3+ Complexes for Molecular Dynamics Simulations: Toward a Rational Optimization of MRI Contrast Agents. Inorg Chem 2022; 61:11837-11858. [PMID: 35849762 PMCID: PMC9775472 DOI: 10.1021/acs.inorgchem.2c01597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The correct parametrization of lanthanide complexes is of the utmost importance for their characterization using computational tools such as molecular dynamics simulations. This allows the optimization of their properties for a wide range of applications, including medical imaging. Here we present a systematic study to establish the best strategies for the correct parametrization of lanthanide complexes using [Gd(DOTA)]- as a reference, which is used as a contrast agent in MRI. We chose the bonded model to parametrize the lanthanide complexes, which is especially important when considering the study of the complex as a whole (e.g., for the study of the dynamics of its interaction with proteins or membranes). We followed two strategies: a so-called heuristic approach employing strategies already published by other authors and another based on the more recent MCPB.py tool. Adjustment of the Lennard-Jones parameters of the metal was required. The final topologies obtained with both strategies were able to reproduce the experimental ion to oxygen distance, vibrational frequencies, and other structural properties. We report a new strategy to adjust the Lennard-Jones parameters of the metal ion in order to capture dynamic properties such as the residence time of the capping water (τm). For the first time, the correct assessment of the τm value for Gd-based complexes was possible by recording the dissociative events over up to 10 μs all-atom simulations. The MCPB.py tool allowed the accurate parametrization of [Gd(DOTA)]- in a simpler procedure, and in this case, the dynamics of the water molecules in the outer hydration sphere was also characterized. This sphere was divided into the first hydration layer, an intermediate region, and an outer hydration layer, with a residence time of 18, 10 and 19 ps, respectively, independent of the nonbonded parameters chosen for Gd3+. The Lennard-Jones parameters of Gd3+ obtained here for [Gd(DOTA)]- may be used with similarly structured gadolinium MRI contrast agents. This allows the use of molecular dynamics simulations to characterize and optimize the contrast agent properties. The characterization of their interaction with membranes and proteins will permit the design of new targeted contrast agents with improved pharmacokinetics.
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Affiliation(s)
- Alexandre
C. Oliveira
- Coimbra
Chemistry Center - Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal,Department
of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Hugo A. L. Filipe
- Coimbra
Chemistry Center - Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal,CPIRN-IPG-Center
of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
| | - João P.
Prates Ramalho
- Hercules
Laboratory, LAQV, REQUIMTE, Department of Chemistry, School of Science
and Technology, University of Évora, 7000-671 Évora, Portugal
| | - Armindo Salvador
- Coimbra
Chemistry Center - Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal,CNC−Center
for Neuroscience and Cell Biology, University
of Coimbra, P-3004-517 Coimbra, Portugal,Institute
for Interdisciplinary Research - University of Coimbra, Casa Costa Alemão- Polo II, Rua D. Francisco de Lemos, 3030-789 Coimbra, Portugal
| | - Carlos F. G. C. Geraldes
- Coimbra
Chemistry Center - Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal,Department
of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-393 Coimbra, Portugal,CIBIT/ICNAS
- Instituto de Ciências Nucleares Aplicadas à Saúde, Pólo das Ciências
da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Maria João Moreno
- Coimbra
Chemistry Center - Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal,Department
of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal,
| | - Luís M. S. Loura
- Coimbra
Chemistry Center - Institute of Molecular Sciences (CQC-IMS), University of Coimbra, 3004-535 Coimbra, Portugal,Faculty
of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal,
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3
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Li Z, Dewulf B, Binnemans K. Nonaqueous Solvent Extraction for Enhanced Metal Separations: Concept, Systems, and Mechanisms. Ind Eng Chem Res 2021; 60:17285-17302. [PMID: 34898845 PMCID: PMC8662634 DOI: 10.1021/acs.iecr.1c02287] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 10/06/2021] [Accepted: 10/27/2021] [Indexed: 11/30/2022]
Abstract
Efficient and sustainable separation of metals is gaining increasing attention, because of the essential roles of many metals in sustainable technologies for a climate-neutral society, such as rare earths in permanent magnets and cobalt, nickel, and manganese in the cathode materials of lithium-ion batteries. The separation and purification of metals by conventional solvent extraction (SX) systems, which consist of an organic phase and an aqueous phase, has limitations. By replacing the aqueous phase with other polar solvents, either polar molecular organic solvents or ionic solvents, nonaqueous solvent extraction (NASX) largely expands the scope of SX, since differences in solvation of metal ions lead to different distribution behaviors. This Review emphasizes enhanced metal extraction and remarkable metal separations observed in NASX systems and discusses the effects of polar solvents on the extraction mechanisms according to the type of polar solvents and the type of extractants. Furthermore, the considerable effects of the addition of water and complexing agents on metal separations in terms of metal ion solvation and speciation are highlighted. Efforts to integrate NASX into metallurgical flowsheets and to develop closed-loop solvometallurgical processes are also discussed. This Review aims to construct a framework of NASX on which many more studies on this topic, both fundamental and applied, can be built.
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Affiliation(s)
| | | | - Koen Binnemans
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
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4
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Cosby AG, Woods JJ, Nawrocki P, Sørensen TJ, Wilson JJ, Boros E. Accessing lanthanide-based, in situ illuminated optical turn-on probes by modulation of the antenna triplet state energy. Chem Sci 2021; 12:9442-9451. [PMID: 34349918 PMCID: PMC8278976 DOI: 10.1039/d1sc02148f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/13/2021] [Indexed: 12/16/2022] Open
Abstract
Luminescent lanthanides possess ideal properties for biological imaging, including long luminescent lifetimes and emission within the optical window. Here, we report a novel approach to responsive luminescent Tb(iii) probes that involves direct modulation of the antenna excited triplet state energy. If the triplet energy lies too close to the 5D4 Tb(iii) excited state (20 500 cm-1), energy transfer to 5D4 competes with back energy transfer processes and limits lanthanide-based emission. To validate this approach, a series of pyridyl-functionalized, macrocyclic lanthanide complexes were designed, and the corresponding lowest energy triplet states were calculated using density functional theory (DFT). Subsequently, three novel constructs L3 (nitro-pyridyl), L4 (amino-pyridyl) and L5 (fluoro-pyridyl) were synthesized. Photophysical characterization of the corresponding Gd(iii) complexes revealed antenna triplet energies between 25 800 and 30 400 cm-1 and a 500-fold increase in quantum yield upon conversion of Tb(L3) to Tb(L4) using the biologically relevant analyte H2S. The corresponding turn-on reaction can be monitored using conventional, small-animal optical imaging equipment in presence of a Cherenkov radiation emitting isotope as an in situ excitation source, demonstrating that antenna triplet state energy modulation represents a viable approach to biocompatible, Tb-based optical turn-on probes.
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Affiliation(s)
- Alexia G Cosby
- Department of Chemistry, Stony Brook University Stony Brook New York 11794 USA
| | - Joshua J Woods
- Department of Chemistry and Chemical Biology, Cornell University Ithaca New York 14853 USA
| | - Patrick Nawrocki
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5 2100 København Ø Denmark
| | - Thomas J Sørensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5 2100 København Ø Denmark
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology, Cornell University Ithaca New York 14853 USA
| | - Eszter Boros
- Department of Chemistry, Stony Brook University Stony Brook New York 11794 USA
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5
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Kovács A. Theoretical Study of Actinide Complexes with Macropa. ACS OMEGA 2020; 5:26431-26440. [PMID: 33110971 PMCID: PMC7581080 DOI: 10.1021/acsomega.0c02873] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
The complex formation of actinium (Ac3+) and californium (Cf3+) ions with macropa (a promising ligand for medical applications, e.g., in targeted α therapy) has been studied by means of density functional theory (DFT) calculations. This work is focused on the structural and bonding properties, the latter on the basis of charge transfer data and topological properties of the electron density distribution. The effect of water solvent on the energetics has been investigated using the SMD model. A comparative analysis with the related properties of two representative lanthanide (La, Lu) complexes has been performed.
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6
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Janicki R, Starynowicz P. Analysis of charge density in nonaaquagadolinium(III) trifluoromethanesulfonate - insight into Gd III-OH 2 bonding. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2020; 76:572-580. [PMID: 32831276 DOI: 10.1107/s2052520620006903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
The experimental charge-density distribution in [Gd(H2O)9](CF3SO3)3 has been analysed and compared with the theoretical density functional theory calculations. Although the Gd-OH2 bonds are mainly ionic, a covalent contribution is detectable when inspecting both the topological parameters of these bonds and the natural bond orbital results. This contribution originates from small electron transfer from the lone pairs of oxygen atoms to empty 5d and 6s spin orbitals of Gd3+.
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Affiliation(s)
- Rafał Janicki
- Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, Wrocław, 50-383, Poland
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7
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Li Z, Binnemans K. Hydration counteracts the separation of lanthanides by solvent extraction. AIChE J 2020; 66:e16545. [PMID: 35859698 PMCID: PMC9285791 DOI: 10.1002/aic.16545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/15/2020] [Accepted: 06/28/2020] [Indexed: 01/17/2023]
Abstract
The extraction of lanthanides from aqueous nitrate solutions by quaternary ammonium nitrate ionic liquids (e.g., [A336][NO3]) shows a negative sequence (i.e., light lanthanides are more efficiently extracted than heavy lanthanides), which conflicts with the lanthanide contraction. In this study, we explored the origin of the negative sequence by investigating the extraction of lanthanides from ethylammonium nitrate by [A336][NO3]. The extraction shows a positive sequence, which is converted to a negative sequence with the addition of water. The transformation from positive to negative sequences reveals that the negative sequence is caused by the hydration of lanthanide ions: hydration of lanthanide ions counteracts the extraction. Therefore, the use of solvents that have weak solvation with lanthanide ions might enhance the separation of the elements by solvent extraction.
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Affiliation(s)
- Zheng Li
- Department of ChemistryKU Leuven Heverlee Belgium
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8
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Peters JA, Djanashvili K, Geraldes CF, Platas-Iglesias C. The chemical consequences of the gradual decrease of the ionic radius along the Ln-series. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213146] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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9
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Thiele NA, Woods JJ, Wilson JJ. Implementing f-Block Metal Ions in Medicine: Tuning the Size Selectivity of Expanded Macrocycles. Inorg Chem 2019; 58:10483-10500. [DOI: 10.1021/acs.inorgchem.9b01277] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Jin GB, Lin J, Estes SL, Skanthakumar S, Soderholm L. Influence of Countercation Hydration Enthalpies on the Formation of Molecular Complexes: A Thorium–Nitrate Example. J Am Chem Soc 2017; 139:18003-18008. [DOI: 10.1021/jacs.7b09363] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Geng Bang Jin
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Jian Lin
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Shanna L. Estes
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - S. Skanthakumar
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - L. Soderholm
- Chemical Sciences and Engineering
Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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11
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Regueiro-Figueroa M, Barriada JL, Pallier A, Esteban-Gómez D, Blas AD, Rodríguez-Blas T, Tóth É, Platas-Iglesias C. Stabilizing Divalent Europium in Aqueous Solution Using Size-Discrimination and Electrostatic Effects. Inorg Chem 2015; 54:4940-52. [DOI: 10.1021/acs.inorgchem.5b00548] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Martín Regueiro-Figueroa
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - José Luis Barriada
- Departamento de Química Física e Enxeñaría
Química I, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Agnès Pallier
- Centre de Biophysique Moléculaire, CNRS, Rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - David Esteban-Gómez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Andrés de Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Éva Tóth
- Centre de Biophysique Moléculaire, CNRS, Rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Rúa da Fraga 10, 15008 A Coruña, Spain
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12
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Kálmán FK, Végh A, Regueiro-Figueroa M, Tóth É, Platas-Iglesias C, Tircsó G. H4octapa: highly stable complexation of lanthanide(III) ions and copper(II). Inorg Chem 2015; 54:2345-56. [PMID: 25692564 DOI: 10.1021/ic502966m] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The acyclic ligand octapa(4-) (H4octapa = 6,6'-((ethane-1,2-diylbis((carboxymethyl)azanediyl))bis(methylene))dipicolinic acid) forms stable complexes with the Ln(3+) ions in aqueous solution. The stability constants determined for the complexes with La(3+), Gd(3+), and Lu(3+) using relaxometric methods are log KLaL = 20.13(7), log KGdL = 20.23(4), and log KLuL = 20.49(5) (I = 0.15 M NaCl). High stability constants were also determined for the complexes formed with divalent metal ions such as Zn(2+) and Cu(2+) (log KZnL = 18.91(3) and log KCuL = 22.08(2)). UV-visible and NMR spectroscopic studies and density functional theory (DFT) calculations point to hexadentate binding of the ligand to Zn(2+) and Cu(2+), the donor atoms of the acetate groups of the ligand remaining uncoordinated. The complexes formed with the Ln(3+) ions are nine-coordinated thanks to the octadentate binding of the ligand and the presence of a coordinated water molecule. The stability constants of the complexes formed with the Ln(3+) ions do not change significantly across the lanthanide series. A DFT investigation shows that this is the result of a subtle balance between the increased binding energies across the 4f period, which contribute to an increasing complex stability, and the parallel increase of the absolute values of the hydration free energies of the Ln(3+) ions. In the case of the [Ln(octapa)(H2O)](-) complexes the interaction between the amine nitrogen atoms of the ligand and the Ln(3+) ions is weakened along the lanthanide series, and therefore the increased electrostatic interaction does not overcome the increasing hydration energies. A detailed kinetic study of the dissociation of the [Gd(octapa)(H2O)](-) complex in the presence of Cu(2+) shows that the metal-assisted pathway is the main responsible for complex dissociation at pH 7.4 and physiological [Cu(2+)] concentration (1 μM).
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Affiliation(s)
- Ferenc Krisztián Kálmán
- Department of Inorganic and Analytical Chemistry, University of Debrecen , Egyetem tér 1, H-4010 Debrecen, Hungary
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13
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Activation of Pt–O and Pt–H bonds: DFT studies on adsorption of [Gd(H2O)n]3+ (n=8–9) with Ptn (n=3–7) cluster. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Understanding Stability Trends along the Lanthanide Series. Chemistry 2014; 20:3974-81. [DOI: 10.1002/chem.201304469] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Indexed: 12/19/2022]
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15
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Hatanaka M, Morokuma K. Role of Water in Mukaiyama–Aldol Reaction Catalyzed by Lanthanide Lewis Acid: A Computational Study. J Am Chem Soc 2013; 135:13972-9. [DOI: 10.1021/ja407357c] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miho Hatanaka
- Fukui
Institute for Fundamental
Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Keiji Morokuma
- Fukui
Institute for Fundamental
Chemistry, Kyoto University, Kyoto 606-8103, Japan
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16
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Xi J, Lan JH, Lu GW, Zhao YL, Chai ZF, Shi WQ. A density functional theory study of complex species and reactions of Am(III)/Eu(III) with nitrate anions. MOLECULAR SIMULATION 2013. [DOI: 10.1080/08927022.2013.812208] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Hosseinnejad T, Ahmadi SJ, Karimi-Jafari MH. Computational study on the structure and properties of ternary complexes of Ln3+ (Ln = La, Ce, Nd AND Sm) with 5,7-dichloroquinoline-8-ol and 4-vinyl pyridine. J STRUCT CHEM+ 2013. [DOI: 10.1134/s0022476613020029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Esteban-Gómez D, de Blas A, Rodríguez-Blas T, Helm L, Platas-Iglesias C. Hyperfine Coupling Constants on Inner-Sphere Water Molecules of GdIII-Based MRI Contrast Agents. Chemphyschem 2012; 13:3640-50. [DOI: 10.1002/cphc.201200417] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Indexed: 01/02/2023]
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19
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Bini D, Gregori M, Cosentino U, Moro G, Canales A, Capitoli A, Jiménez-Barbero J, Cipolla L. Synthesis and characterization of a paramagnetic sialic acid conjugate as probe for magnetic resonance applications. Carbohydr Res 2012; 354:21-31. [DOI: 10.1016/j.carres.2012.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/29/2012] [Accepted: 03/03/2012] [Indexed: 10/28/2022]
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20
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Smirnov PR, Trostin VN. Structural parameters of the nearest surrounding of lanthanide ions in aqueous solutions of their salts. RUSS J GEN CHEM+ 2012. [DOI: 10.1134/s1070363212030036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Manna D, Ghanty TK. Complexation behavior of trivalent actinides and lanthanides with 1,10-phenanthroline-2,9-dicarboxylic acid based ligands: insight from density functional theory. Phys Chem Chem Phys 2012; 14:11060-9. [DOI: 10.1039/c2cp40083a] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Soderholm L, Skanthakumar S, Wilson RE. Structural Correspondence between Uranyl Chloride Complexes in Solution and Their Stability Constants. J Phys Chem A 2011; 115:4959-67. [DOI: 10.1021/jp111551t] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Soderholm
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - S. Skanthakumar
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Richard E. Wilson
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
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23
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Bhattacharyya A, Ghanty TK, Mohapatra PK, Manchanda VK. Selective Americium(III) Complexation by Dithiophosphinates: A Density Functional Theoretical Validation for Covalent Interactions Responsible for Unusual Separation Behavior from Trivalent Lanthanides. Inorg Chem 2011; 50:3913-21. [DOI: 10.1021/ic102238c] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arunasis Bhattacharyya
- Radiochemistry Division and ‡Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Tapan Kumar Ghanty
- Radiochemistry Division and ‡Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Prasanta Kumar Mohapatra
- Radiochemistry Division and ‡Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - Vijay Kumar Manchanda
- Radiochemistry Division and ‡Theoretical Chemistry Section, Bhabha Atomic Research Centre, Mumbai-400085, India
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Roca-Sabio A, Mato-Iglesias M, Esteban-Gómez D, de Blas A, Rodríguez-Blas T, Platas-Iglesias C. The effect of ring size variation on the structure and stability of lanthanide(III) complexes with crown ethers containing picolinate pendants. Dalton Trans 2010; 40:384-92. [PMID: 21116555 DOI: 10.1039/c0dt00746c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination properties of the macrocyclic receptor N,N'-bis[(6-carboxy-2-pyridyl)methylene]-1,10-diaza-15-crown-5 (H(2)bp15c5) towards the lanthanide ions are reported. Thermodynamic stability constants were determined by pH-potentiometric titration at 25 °C in 0.1 M KCl. A smooth decrease in complex stability is observed upon decreasing the ionic radius of the Ln(III) ion from La [log K(LaL) = 12.52(2)] to Lu [log K(LuL) = 10.03(6)]. Luminescence lifetime measurements recorded on solutions of the Eu(III) and Tb(III) complexes confirm the absence of inner-sphere water molecules in these complexes. (1)H and (13)C NMR spectra of the complexes formed with the diamagnetic La(III) metal ion were obtained in D(2)O solution and assigned with the aid of HSQC and HMBC 2D heteronuclear experiments, as well as standard 2D homonuclear COSY and NOESY spectra. The (1)H NMR spectra of the paramagnetic Ce(III), Eu(III) and Yb(III) complex suggest nonadentate binding of the ligand to the metal ion. The syn conformation of the ligand in [Ln(bp15c5)](+) complexes implies the occurrence of two helicities, one associated with the layout of the picolinate pendant arms (absolute configuration Δ or Λ), and the other to the five five-membered chelate rings formed by the binding of the crown moiety (absolute configuration δ or λ). A detailed conformational analysis performed with the aid of DFT calculations (B3LYP model) indicates that the complexes adopt a Λ(λδ)(δδλ) [or Δ(δλ)(λλδ)] conformation in aqueous solution. Our calculations show that the interaction between the Ln(III) ion and several donor atoms of the crown moiety is weakened as the ionic radius of the metal ion decreases, in line with the decrease of complex stability observed on proceeding to the right across the lanthanide series.
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Affiliation(s)
- Adrián Roca-Sabio
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A, Coruña, Spain
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25
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Beuchat C, Hagberg D, Spezia R, Gagliardi L. Hydration of lanthanide chloride salts: a quantum chemical and classical molecular dynamics simulation study. J Phys Chem B 2010; 114:15590-7. [PMID: 21053931 DOI: 10.1021/jp105590h] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We present the results of a quantum chemical and classical molecular dynamics simulation study of some solutions containing chloride salts of La(3+), Gd(3+), and Er(3+) at various concentrations (from 0.05 to 5 M), with the purpose of understanding their structure and dynamics and analyzing how the coordination varies along the lanthanide series. In the La-Cl case, nine water molecules surround the central La(3+) cation in the first solvation shell, and chloride is present only in the second shell for all solutions but the most concentrated one (5 M). In the Gd(3+) case, the coordination number is ∼8.6 for the two lowest concentrations (0.05 and 0.1 M), and then it decreases rapidly. In the Er(3+) case, the coordination number is 7.4 for the two lowest concentrations (0.05 and 0.1 M), and then it decreases. The counterion Cl(-) is not present in the first solvation shell in the La(3+) case for most of the solutions, but it becomes progressively closer to the central cation in the Gd(3+) and Er(3+) cases, even at low concentrations.
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Affiliation(s)
- Cesar Beuchat
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland
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26
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Schwartz CP, Uejio JS, Duffin AM, Drisdell WS, Smith JD, Saykally RJ. Soft X-ray absorption spectra of aqueous salt solutions with highly charged cations in liquid microjets. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.05.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Purgel M, Baranyai Z, de Blas A, Rodríguez-Blas T, Bányai I, Platas-Iglesias C, Tóth I. An NMR and DFT Investigation on the Conformational Properties of Lanthanide(III) 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetate Analogues Containing Methylenephosphonate Pendant Arms. Inorg Chem 2010; 49:4370-82. [DOI: 10.1021/ic100177n] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mihály Purgel
- Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
- Research group of Homogeneous Catalysis, MTA-DE, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Zsolt Baranyai
- Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
| | - Andrés de Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - István Bányai
- Department of Colloid and Environmental Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Imre Tóth
- Department of Inorganic and Analytical Chemistry, University of Debrecen, P.O. Box 21, Egyetem tér 1, Debrecen H-4010, Hungary
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28
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Ciupka J, Cao-Dolg X, Wiebke J, Dolg M. Computational study of lanthanide(iii) hydration. Phys Chem Chem Phys 2010; 12:13215-23. [DOI: 10.1039/c0cp00639d] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Pesonen H, Aksela R, Laasonen K. Density Functional Complexation Study of Metal Ions with Cysteine. J Phys Chem A 2009; 114:466-73. [DOI: 10.1021/jp905733d] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Henna Pesonen
- Department of Chemistry, PO Box 3000, FIN-90014 University of Oulu, Finland, and Kemira Oyj, Espoo Research Centre, PO Box 44, FIN-02271 Espoo, Finland
| | - Reijo Aksela
- Department of Chemistry, PO Box 3000, FIN-90014 University of Oulu, Finland, and Kemira Oyj, Espoo Research Centre, PO Box 44, FIN-02271 Espoo, Finland
| | - Kari Laasonen
- Department of Chemistry, PO Box 3000, FIN-90014 University of Oulu, Finland, and Kemira Oyj, Espoo Research Centre, PO Box 44, FIN-02271 Espoo, Finland
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30
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Villa A, Hess B, Saint-Martin H. Dynamics and Structure of Ln(III)−Aqua Ions: A Comparative Molecular Dynamics Study Using ab Initio Based Flexible and Polarizable Model Potentials. J Phys Chem B 2009; 113:7270-81. [DOI: 10.1021/jp8097445] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alessandra Villa
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Apartado Postal 48-3, 62251 Cuernavaca, Morelos, México
| | - Berk Hess
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Apartado Postal 48-3, 62251 Cuernavaca, Morelos, México
| | - Humberto Saint-Martin
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Apartado Postal 48-3, 62251 Cuernavaca, Morelos, México
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31
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Cosentino U, Pitea D, Moro G, Saracino GAA, Villa A. Conformational behaviour determines the low-relaxivity state of a conditional MRI contrast agent. Phys Chem Chem Phys 2009; 11:3943-50. [PMID: 19440623 DOI: 10.1039/b902049g] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The conformational behaviour in aqueous solution of the EgadMe complex, a conditional gadolinium-based contrast agent sensitive to beta-galactosidase enzymatic activity, is investigated by means of ab initio calculations and classical molecular dynamics simulations. Furthermore, force field parameterization of gadolinium-ligand interactions is performed, and its reliability is tested on the bench mark [Gd(DOTA)](-) system by MD simulations. Both computational methods highlight the presence in EgadMe of two main conformational isomers. The lowest energy conformation is a "close" form, corresponding to a state of low-relaxivity (MRI "inactive"), in which the ninth coordination site of the gadolinium ion is occupied by one oxygen atom of the galactopyranose residue. The second isomer, which is 2.9 (at ab initio level) and 4.2 (at MD level) kcal mol(-1) above the global minimum, presents an "open" form, corresponding to a state of high-relaxivity (MRI "active") in which one water molecule coordinates the ion. These results are consistent with experimental findings reported for EgadMe, and show that competition at the ninth coordination site of gadolinium ion, between the intra (the galactopyranose residue) and inter (water molecules) molecular interactions, affects the relaxivity of this system.
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Affiliation(s)
- Ugo Cosentino
- Dipartimento di Scienze dell'Ambiente e del Territorio, University of Milano-Bicocca, Piazza della Scienza 1, 20126, Milano, Italy.
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Roca-Sabio A, Mato-Iglesias M, Esteban-Gómez D, Tóth É, Blas AD, Platas-Iglesias C, Rodríguez-Blas T. Macrocyclic Receptor Exhibiting Unprecedented Selectivity for Light Lanthanides. J Am Chem Soc 2009; 131:3331-41. [DOI: 10.1021/ja808534w] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Adrián Roca-Sabio
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Marta Mato-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - David Esteban-Gómez
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Éva Tóth
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Andrés de Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Centre de Biophysique Moléculaire, CNRS, rue Charles Sadron, 45071 Orléans, Cedex 2, France
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33
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Mato-Iglesias M, Rodríguez-Blas T, Platas-Iglesias C, Starck M, Kadjane P, Ziessel R, Charbonnière L. Solution Structure and Dynamics, Stability, and NIR Emission Properties of Lanthanide Complexes with a Carboxylated Bispyrazolylpyridyl Ligand. Inorg Chem 2009; 48:1507-18. [DOI: 10.1021/ic801816p] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marta Mato-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Teresa Rodríguez-Blas
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Carlos Platas-Iglesias
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Matthieu Starck
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Pascal Kadjane
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Raymond Ziessel
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Loïc Charbonnière
- Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain, and Laboratoire de Chimie Organique et Spectroscopie Avancées CNRS UMR 7515, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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34
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35
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Jeong N, Lee J, Tae E, Lee Y, Yoon K. Acidity Scale for Metal Oxides and Sanderson's Electronegativities of Lanthanide Elements. Angew Chem Int Ed Engl 2008; 47:10128-32. [DOI: 10.1002/anie.200803837] [Citation(s) in RCA: 152] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Jeong N, Lee J, Tae E, Lee Y, Yoon K. Acidity Scale for Metal Oxides and Sanderson's Electronegativities of Lanthanide Elements. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803837] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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37
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Dinescu A, Clark AE. Thermodynamic and Structural Features of Aqueous Ce(III). J Phys Chem A 2008; 112:11198-206. [DOI: 10.1021/jp8076408] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adriana Dinescu
- Idaho National Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415-2208, and Department of Chemistry, Washington State University, P.O. Box 644630, Pullman, Washington
| | - Aurora E. Clark
- Idaho National Laboratory, P.O. Box 1625, Idaho Falls, Idaho 83415-2208, and Department of Chemistry, Washington State University, P.O. Box 644630, Pullman, Washington
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38
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Mato-Iglesias M, Roca-Sabio A, Pálinkás Z, Esteban-Gómez D, Platas-Iglesias C, Tóth E, de Blas A, Rodríguez-Blas T. Lanthanide complexes based on a 1,7-diaza-12-crown-4 platform containing picolinate pendants: a new structural entry for the design of magnetic resonance imaging contrast agents. Inorg Chem 2008; 47:7840-51. [PMID: 18672876 DOI: 10.1021/ic800878x] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We have synthesized a new macrocyclic ligand, N,N'-Bis[(6-carboxy-2-pyridyl)methyl]-1,7-diaza-12-crown-4 (H 2bp12c4), designed for complexation of lanthanide ions in aqueous solution. The X-ray crystal structure of the Gd (III) complex shows that the metal ion is directly bound to the eight donor atoms of the bp12c4 ligand, the ninth coordination site being occupied by an oxygen atom of a carboxylate group of a neighboring [Gd(bp12c4)] (+) unit, while the structure of the Lu (III) analogue shows the metal ion being only eight-coordinate. The hydration numbers obtained from luminescence lifetime measurements in aqueous solution of the Eu (III) and Tb (III) complexes suggest an equilibrium in aqueous solution between a dihydrated ( q = 2), ten-coordinate and a monohydrated ( q = 1), nine-coordinate species. This has been confirmed by a variable temperature UV-vis spectrophotometric study on the Eu (III) complex. The structure of the complexes in solution has been investigated by (1)H and (13)C NMR spectroscopy, as well as by theoretical calculations performed at the DFT (B3LYP) level. The results indicate that the change in hydration number occurring around the middle of the lanthanide series is accompanied by a change in the conformation adopted by the complexes in solution [Delta(lambdalambdalambdalambda) for q = 2 and Lambda(deltalambdadeltalambda) for q = 1]. The structure calculated for the Yb (III) complex (Lambda(deltalambdadeltalambda)) is in good agreement with the experimental structure in solution, as demonstrated by the analysis of the Yb (III)-induced paramagnetic (1)H shifts.
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Affiliation(s)
- Marta Mato-Iglesias
- Departamento de Quimica Fundamental, Universidade da Coruna, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruna, Spain
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39
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Ayala R, Martinez JM, Pappalardo RR, Muñoz-Paez A, Marcos ES. Po(IV) Hydration: A Quantum Chemical Study. J Phys Chem B 2008; 112:5416-22. [DOI: 10.1021/jp076032r] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Regla Ayala
- Departamento de Quimica Inorganica, CSIC, ICMSE, University of Sevilla, Seville 41092, Spain, and Departamento de Quimica Fisica, University of Sevilla, E-41012 Seville, Spain
| | - Jose Manuel Martinez
- Departamento de Quimica Inorganica, CSIC, ICMSE, University of Sevilla, Seville 41092, Spain, and Departamento de Quimica Fisica, University of Sevilla, E-41012 Seville, Spain
| | - Rafael R. Pappalardo
- Departamento de Quimica Inorganica, CSIC, ICMSE, University of Sevilla, Seville 41092, Spain, and Departamento de Quimica Fisica, University of Sevilla, E-41012 Seville, Spain
| | - A. Muñoz-Paez
- Departamento de Quimica Inorganica, CSIC, ICMSE, University of Sevilla, Seville 41092, Spain, and Departamento de Quimica Fisica, University of Sevilla, E-41012 Seville, Spain
| | - Enrique Sanchez Marcos
- Departamento de Quimica Inorganica, CSIC, ICMSE, University of Sevilla, Seville 41092, Spain, and Departamento de Quimica Fisica, University of Sevilla, E-41012 Seville, Spain
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40
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Charbonnière L, Mameri S, Kadjane P, Platas-Iglesias C, Ziessel R. Tuning the Coordination Sphere around Highly Luminescent Lanthanide Complexes. Inorg Chem 2008; 47:3748-62. [DOI: 10.1021/ic702472n] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Loïc Charbonnière
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Samir Mameri
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Pascal Kadjane
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Carlos Platas-Iglesias
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
| | - Raymond Ziessel
- Laboratoire de Chimie Moléculaire, associé au CNRS, ECPM-ULP, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France, and Departamento de Química Fundamental, Universidade da Coruña, Campus da Zapateira, Alejandro de la Sota 1, 15008 A Coruña, Spain
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González-Lorenzo M, Platas-Iglesias C, Mato-Iglesias M, Esteban-Gómez D, Blas AD, Rodríguez-Blas T. Conformational study of lanthanide(III) complexes of N-(2-salicylaldiminatobenzyl)-1-aza-18-crown-6 by using X-ray and ab initio methods. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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42
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Djanashvili K, Platas-Iglesias C, Peters JA. The structure of the lanthanide aquo ions in solution as studied by 17O NMR spectroscopy and DFT calculations. Dalton Trans 2008:602-7. [DOI: 10.1039/b714801a] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Núñez C, Bastida R, Macías A, Mato-Iglesias M, Platas-Iglesias C, Valencia L. A hexaaza macrocyclic ligand containing acetohydrazide pendants for Ln(iii) complexation in aqueous solution. Solid-state and solution structures and DFT calculations. Dalton Trans 2008:3841-50. [DOI: 10.1039/b800953h] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lindqvist-Reis P, Apostolidis C, Rebizant J, Morgenstern A, Klenze R, Walter O, Fanghänel T, Haire RG. The Structures and Optical Spectra of Hydrated Transplutonium Ions in the Solid State and in Solution. Angew Chem Int Ed Engl 2007; 46:919-22. [PMID: 17200968 DOI: 10.1002/anie.200603947] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Patric Lindqvist-Reis
- Institut für Nukleare Entsorgung, Forschungszentrum Karlsruhe, Postfach 3640, 76021 Karlsruhe, Germany.
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Lindqvist-Reis P, Apostolidis C, Rebizant J, Morgenstern A, Klenze R, Walter O, Fanghänel T, Haire R. The Structures and Optical Spectra of Hydrated Transplutonium Ions in the Solid State and in Solution. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200603947] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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46
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Wiebke J, Moritz A, Cao X, Dolg M. Approaching actinide(+III) hydration from first principles. Phys Chem Chem Phys 2007; 9:459-65. [PMID: 17216061 DOI: 10.1039/b614092k] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A systematic computational approach to An(III) hydration on a density-functional level of theory, using quasi-relativistic 5f-in-core pseudopotentials and valence-only basis sets for the An(III) subsystems, is presented. Molecular structures, binding energies, hydration energies, and Gibbs free energies of hydration have been calculated for [An(III)(OH(2))(h)](3+) (h = 7, 8, 9) and [An(III)(OH(2))(h-1) * OH(2)](3+) (h = 8, 9), using large (7s6p5d2f1g)/[6s5p4d2f1g] An(III) and cc-pVQZ O and H basis sets within the COSMO implicit solvation model. An(III) preferred primary hydration numbers are found to be 8 for all An(III) at the gradient-corrected density-functional level of theory. Second-order Møller-Plesset perturbation theory predicts preferred primary hydration numbers of 9 and 8 for Ac(III)-Md(III) and No(III)-Lr(III), respectively.
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Affiliation(s)
- J Wiebke
- Institute for Theoretical Chemistry, Universität zu Köln, Greinstr. 4, D-50939 Cologne, Germany
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Gutowski KE, Cocalia VA, Griffin ST, Bridges NJ, Dixon DA, Rogers RD. Interactions of 1-Methylimidazole with UO2(CH3CO2)2 and UO2(NO3)2: Structural, Spectroscopic, and Theoretical Evidence for Imidazole Binding to the Uranyl Ion. J Am Chem Soc 2006; 129:526-36. [PMID: 17227015 DOI: 10.1021/ja064592i] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first definitive high-resolution single-crystal X-ray structure for the coordination of the 1-methylimidazole (Meimid) ligand to UO2(Ac)2 (Ac = CH3CO2) is reported. The crystal structure evidence is confirmed by IR, Raman, and UV-vis spectroscopic data. Direct participation of the nitrogen atom of the Meimid ligand in binding to the uranium center is confirmed. Structural analysis at the DFT (B3LYP) level of theory showed a conformational difference of the Meimid ligand in the free gas-phase complex versus the solid state due to small energetic differences and crystal packing effects. Energetic analysis at the MP2 level in the gas phase supported stronger Meimid binding over H2O binding to both UO2(Ac)2 and UO2(NO3)2. In addition, self-consistent reaction field COSMO calculations were used to assess the aqueous phase energetics of combination and displacement reactions involving H2O and Meimid ligands to UO2R2 (R = Ac, NO3). For both UO2(NO3)2 and UO2(Ac)2, the displacement of H2O by Meimid was predicted to be energetically favorable, consistent with experimental results that suggest Meimid may bind uranyl at physiological pH. Also, log(Knitrate/KAc) calculations supported experimental evidence that the binding stoichiometry of the Meimid ligand is dependent upon the nature of the reactant uranyl complex. These results clearly demonstrate that imidazole binds to uranyl and suggest that binding of histidine residues to uranyl could occur under normal biological conditions.
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Affiliation(s)
- Keith E Gutowski
- Department of Chemistry and Center for Green Manufacturing, The University of Alabama, Shelby Hall, Box 870336, Tuscaloosa, Alabama 35487-0336, USA
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Gutowski KE, Dixon DA. Predicting the Energy of the Water Exchange Reaction and Free Energy of Solvation for the Uranyl Ion in Aqueous Solution. J Phys Chem A 2006; 110:8840-56. [PMID: 16836448 DOI: 10.1021/jp061851h] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The structures and vibrational frequencies of UO2(H2O)4(2+) and UO2(H2O)5(2+) have been calculated using density functional theory and are in reasonable agreement with experiment. The energies of various reactions were calculated at the density functional theory (DFT) and MP2 levels; the latter provides the best results. Self-consistent reaction field calculations in the PCM and SCIPCM approximations predicted the free energy of the water exchange reaction, UO2(H2O)4(2+) + H2O <--> UO2(H2O)5(2+). The calculated free energies of reaction are very sensitive to the choice of radii (O and H) and isodensity values in the PCM and SCIPCM models, respectively. Results consistent with the experimental HEXS value of -1.19 +/- 0.42 kcal/mol (within 1-3 kcal/mol) are obtained with small cavities. The structures and vibrational frequencies of the clusters with second solvation shell waters: UO2(H2O)4(H2O)8(2+), UO2(H2O)4(H2O)10(2+), UO2(H2O)4(H2O)11(2+), UO2(H2O)5(H2O)7(2+), and UO2(H2O)5(H2O)10(2+), were calculated and are in better agreement with experiment as compared to reactions involving only UO2(H2O)4(2+) and UO2(H2O)5(2+). The MP2 reaction energies for water exchange gave gas-phase results that agreed with experiment in the range -5.5 to +3.3 kcal/mol. The results were improved by inclusion of a standard PCM model with differences of -1.2 to +2.7 kcal/mol. Rearrangement reactions based on an intramolecular isomerization leading to a redistribution of water in the two shells provide good values in comparison to experiment with values of Delta G(exchange) from -2.2 to -0.5 kcal/mol so the inclusion of a second hydration sphere accounts for most solvation effects. Calculation of the free energy of solvation of the uranyl cation yielded an upper bound to the solvation energy of -410 +/- 5 kcal/mol, consistent with the best experimental value of -421 +/- 15 kcal/mol.
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Affiliation(s)
- Keith E Gutowski
- Department of Chemistry and Center for Green Manufacturing, Shelby Hall, Box 870336, The University of Alabama, Tuscaloosa, Alabama 35487, USA
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Yang T, Bursten BE. Speciation of the Curium(III) Ion in Aqueous Solution: A Combined Study by Quantum Chemistry and Molecular Dynamics Simulation. Inorg Chem 2006; 45:5291-301. [PMID: 16813391 DOI: 10.1021/ic0513787] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The structures of aquo complexes of the curium(III) ion have been systematically studied using quantum chemical and molecular dynamics (MD) methods. The first hydration shell of the Cm3+ ion has been calculated using density functional theory (DFT), with and without inclusion of the conductor-like polarizable continuum medium (CPCM) model of solvation. The calculated results indicate that the primary hydration number of Cm3+ is nine, with a Cm-O bond distance of 2.47-2.48 A. The calculated bond distances and the hydration number are in excellent agreement with available experimental data. The inclusion of a complete second hydration shell of Cm3+ has been investigated using both DFT and MD methods. The presence of the second hydration shell has significant effects on the primary coordination sphere, suggesting that the explicit inclusion of second-shell effects is important for understanding the nature of the first shell. The calculated results indicate that 21 water molecules can be coordinated in the second hydration shell of the Cm3+ ion. MD simulations within the hydrated-ion model suggest that the second-shell water molecules exchange with the bulk solvent with a lifetime of 161 ps.
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Affiliation(s)
- Tianxiao Yang
- Department of Chemistry, Ohio State University, Columbus, Ohio 43210, USA
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Experimental and theoretical study of lanthanide complexes based on linear and macrocyclic polyaminopolycarboxylic acids containing pyrazolylethyl arms. Molecules 2006; 11:345-56. [PMID: 17962766 DOI: 10.3390/11050345] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2005] [Revised: 05/05/2006] [Accepted: 05/05/2006] [Indexed: 11/17/2022] Open
Abstract
We report the synthesis of two novel Gd(III)-complexes derived from linear and macrocyclic polyaminopolycarboxylic acids 1 and 2, which contain a 3,5- dimethylpyrazolyl-ethyl arm, and a study of their relaxivity properties. The relationships between the experimental and theoretical results have provided interesting information about the kinetic and thermodynamic stability of these complexes.
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