Hydration and dynamics of l-glutamate ion in aqueous solution
Literature Information
Sergej Friesen, Marina V. Fedotova, Sergey E. Kruchinin, Richard Buchner
Aqueous solutions of sodium L-glutamate (NaGlu) in the concentration range 0 < c/M ≤ 1.90 at 25 °C were investigated by dielectric relaxation spectroscopy (DRS) and statistical mechanics (1D-RISM and 3D-RISM calculations) to study the hydration and dynamics of the L-glutamate (Glu−) anion. Although at c → 0 water molecules beyond the first hydration shell are dynamically affected, Glu− hydration is rather fragile and for c ≳ 0.3 M apparently restricted to H2O molecules hydrogen bonding to the carboxylate groups. These hydrating dipoles are roughly parallel to the anion moment, leading to a significantly enhanced effective dipole moment of Glu−. However, L-glutamate dynamics is determined by the rotational diffusion of individual anions under hydrodynamic slip boundary conditions. Thus, the lifetime of the hydrate complexes, as well as of possibly formed [Na+Glu−]0 ionpairs and L-glutamate aggregates, cannot exceed the characteristic timescale for Glu− rotation.
Related Literature
Polymer vesicles formed by amphiphilic diblock copolymers containing a thermotropic liquid crystalline polymer block
Jing Yang, Daniel Lévy, Wei Deng, Patrick Keller, Min-Hui Li
DOI: 10.1039/B508034G
Thio[2-(benzoylamino)ethylamino]-β-CD fragment modified gold nanoparticles as recycling extractors for [60]fullerene
Yu Liu, Ying-Wei Yang, Yong Chen
DOI: 10.1039/B507650A
Novel HEXOL-type cyclometallated iridium(iii) complexes: stereoselective synthesis and structure elucidation
Liangru Yang, Alex von Zelewsky, Helen Stoeckli-Evans
DOI: 10.1039/B507769A
Photochemical release of nitric oxide from a regenerable, sol-gel encapsulated Ru–salen–nitrosyl complex
Jeane Bordini, Peter C. Ford, Elia Tfouni
DOI: 10.1039/B507407J
Demethylation of the [Me3Sn(PhN2O2)]4 tetramer into dimeric [Me2Sn(PhN2O2)2]2: a thermally induced methyl-transfer between supramolecules‡
Andrea Deák, Gábor Tárkányi
DOI: 10.1039/B506728F
Gold nanoparticle-based competitive colorimetric assay for detection of protein–protein interactions
Charng-Sheng Tsai, Ting-Bin Yu, Chao-Tsen Chen
DOI: 10.1039/B507237A
Facile synthetic approach to novel core-extended perylene carboximide dyes
Sibylle Müller, Klaus Müllen
DOI: 10.1039/B509220E
Chemistry of aluminium(i)
Herbert W. Roesky, S. Shravan Kumar
DOI: 10.1039/B505307B
Solid-state 87Rb NMR signatures for rubidium cations bound to a G-quadruplex
Ramsey Ida, Gang Wu
DOI: 10.1039/B505674H
Enantioselective organocatalytic Michael addition of malonate esters to nitroolefins using bifunctional cinchonine derivatives‡
Jinxing Ye, Darren J. Dixon, Peter S. Hynes
DOI: 10.1039/B508833J
You might also like
How should waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3) be handled?
Waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3...
How should N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine (CAS: 1318338-47-4) be stored?
N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine should be stored in a tightly sealed c...
What is the market or research trend for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1)?
The market for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1) is...
How should Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) be stored?
Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) ...
What regulatory guidelines apply to 2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3)?
2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3) is regulated under the Glob...
What regulatory guidelines apply to 1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 119462-56-5)?
1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 11946...
Are there alternatives to 5-Fluoro-2-(1-pyrrolidinyl)pyridine (CAS: 1287217-79-1) in synthesis?
Several alternatives can be used in the synthesis of 5-Fluoro-2-(1-pyrrolidinyl)...
What precautions should be taken when handling 1-((2R,3R,4R,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxy-3-methoxytetrahydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione (CAS: 153631-19-7)?
Proper personal protective equipment (PPE) must be worn when handling this compo...
What precautions should be taken when handling 6-Bromoimidazo[1,2-a]pyridin-8-amine (CAS: 676371-00-9)?
When handling 6-Bromoimidazo[1,2-a]pyridin-8-amine, it is important to wear appr...
Are there alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS: 1049740-22-8) in synthesis?
Alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochlo...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














