51
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van Wüllen C, Schwing K, Riehn C, Gerhards M. Editorial of the PCCP themed issue on "Physical Chemistry for Life Sciences". Phys Chem Chem Phys 2018; 19:10714-10717. [PMID: 28422232 DOI: 10.1039/c7cp90069d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This themed issue features high quality and original research on the theme of Physical Chemistry for Life Sciences.
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Affiliation(s)
- Christoph van Wüllen
- TU Kaiserslautern, Fachbereich Chemie and Research Center Optimas, Erwin-Schrödinger-Strasse 52, D-67663 Kaiserslautern, Germany.
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52
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Lei X, Kong X, Zhao Z, Zhang B, Dai D, Yang X, Jiang L. Infrared photodissociation spectroscopy of cold cationic trimethylamine complexes. Phys Chem Chem Phys 2018; 20:25583-25591. [DOI: 10.1039/c8cp03672a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Infrared spectroscopic studies reveal the general trends in the stepwise growth motif of trimethylamine (TMA)n+ complexes.
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Affiliation(s)
- Xin Lei
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xiangtao Kong
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Zhi Zhao
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Bingbing Zhang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Dongxu Dai
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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53
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Gu Q, Xia Y, Chen S, Su P, Yang Z, Trindle CO, Knee JL. Infrared spectroscopy of gas phase alpha hydroxy carboxylic acid homo and hetero dimers. Phys Chem Chem Phys 2018; 20:29601-29609. [DOI: 10.1039/c8cp05979a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New gas phase infrared spectroscopy is reported for an aromatic alpha hydroxy carboxylic acid homo dimer of 9-hydroxy-9-fluorene carboxylic acid (9HFCA)2, and the hetero dimer of 9HFCA with glycolic acid.
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Affiliation(s)
- Quanli Gu
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
- Chemistry Department
| | - Yong Xia
- State Key Laboratory of Precision Spectroscopy
- School of Physics and Materials Science
- East China Normal University
- Shanghai 200062
- China
| | - Sifeng Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- China
| | - Peifeng Su
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- China
| | - Zhijun Yang
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Carl O. Trindle
- Chemistry Department
- University of Virginia
- Charlottesville
- USA
| | - J. L. Knee
- Chemistry Department
- Wesleyan University
- Middletown
- USA
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54
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Klyne J, Miyazaki M, Fujii M, Dopfer O. Sequential microhydration of cationic 5-hydroxyindole (5HI+): infrared photodissociation spectra of 5HI+–Wn clusters (W = H2O, n ≤ 4). Phys Chem Chem Phys 2018; 20:3092-3108. [DOI: 10.1039/c7cp06132c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrogen-bonding properties of the acidic OH and NH groups of the 5-hydroxyindole cation are probed by infrared spectroscopy and DFT calculations of its microhydrated clusters.
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Affiliation(s)
- Johanna Klyne
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Mitsuhiko Miyazaki
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
- Laboratory for Chemistry and Life Science
| | - Masaaki Fujii
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
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55
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Zhang BB, Kong XT, Jiang SK, Zhao Z, Xie H, Hao C, Dai DX, Yang XM, Jiang L. Infrared-Vacuum Ultraviolet Spectroscopic and Theoretical Study of Neutral Trimethylamine Dimer. CHINESE J CHEM PHYS 2017. [DOI: 10.1063/1674-0068/30/cjcp1711213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Bing-bing Zhang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiang-tao Kong
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shu-kang Jiang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Zhi Zhao
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hua Xie
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ce Hao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Dong-xu Dai
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xue-ming Yang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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56
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Blanco S, Pinacho P, López JC. Structure and Dynamics in Formamide-(H 2O) 3: A Water Pentamer Analogue. J Phys Chem Lett 2017; 8:6060-6066. [PMID: 29190100 DOI: 10.1021/acs.jpclett.7b02948] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Water self-association dominates the formation of microsolvated molecular clusters which may give rise to complex structures resembling those of pure water clusters. We present a rotational study of the complex formamide-(H2O)3 formed in a supersonic jet and several monosubstituted isotopologues. Formamide and water molecules form a four-body sequential cycle through N-H···O, O-H···O, and O-H···O═C hydrogen bonds, resulting in a chiral structure with a nonplanar skeleton that can be overlapped to that of water pentamer. The analysis of the 14N-nucleus quadrupole coupling effects shows the depletion of the electron density of the N atom lone pair with respect to the bare formamide that affects the amide group C-N and C═O distances. The study of the observed tunneling doublets shows that formamide-(H2O)3 follows a path to invert its structure driven by the flipping of water subunits and passing through successive nonplanar configurations, a motion reminiscent of the pseudorotation of water pentamer.
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Affiliation(s)
- Susana Blanco
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , E-47011 Valladolid, Spain
| | - Pablo Pinacho
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , E-47011 Valladolid, Spain
| | - Juan Carlos López
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid , E-47011 Valladolid, Spain
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57
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Bernhard D, Holzer C, Dietrich F, Stamm A, Klopper W, Gerhards M. The Structure of Diphenyl Ether-Methanol in the Electronically Excited and Ionic Ground States: A Combined IR/UV Spectroscopic and Theoretical Study. Chemphyschem 2017; 18:3634-3641. [PMID: 29024275 DOI: 10.1002/cphc.201700722] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/24/2017] [Indexed: 11/06/2022]
Abstract
Diphenyl ether offers competing docking sites for methanol: the ether oxygen acts as a common hydrogen-bond acceptor and the π system of each phenyl ring allows for OH-π interactions driven by electrostatic, induction, and dispersion forces. Based on investigations in the electronic ground state (S0 ), we present a detailed study of the electronically excited state (S1 ) and the ionic ground state (D0 ), in which an impact on the structural preference is expected compared with the S0 state. Dispersion forces in the electronically excited state were analyzed by comparing the computed binding energies at the coupled-cluster-singles (CCS) and approximate coupled-cluster-singles-doubles levels of theory (CC2 approximation). By applying UV/IR/UV spectroscopy, we found a more strongly bound OH-π structure in the S1 state compared with the S0 state, in agreement with spin-component-scaled CC2 calculations. A structural rearrangement into a non-hydrogen-bonded structure takes places upon ionization in the D0 state, which was revealed by using IR photodissociation spectroscopy and confirmed by theory.
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Affiliation(s)
- Dominic Bernhard
- Fachbereich Chemie and Research Center OPTIMAS, TU Kaiserslautern, Erwin-Schrödinger-Str. 52, D-67663, Kaiserslautern, Germany
| | - Christof Holzer
- Institut für Physikalische Chemie, Abteilung für Theoretische Chemie, Karlsruher Institut für Technologie, KIT, Fritz-Haber-Weg 2, D-76131, Karlsruhe, Germany
| | - Fabian Dietrich
- Fachbereich Chemie and Research Center OPTIMAS, TU Kaiserslautern, Erwin-Schrödinger-Str. 52, D-67663, Kaiserslautern, Germany
| | - Anke Stamm
- Fachbereich Chemie and Research Center OPTIMAS, TU Kaiserslautern, Erwin-Schrödinger-Str. 52, D-67663, Kaiserslautern, Germany
| | - Wim Klopper
- Institut für Physikalische Chemie, Abteilung für Theoretische Chemie, Karlsruher Institut für Technologie, KIT, Fritz-Haber-Weg 2, D-76131, Karlsruhe, Germany
| | - Markus Gerhards
- Fachbereich Chemie and Research Center OPTIMAS, TU Kaiserslautern, Erwin-Schrödinger-Str. 52, D-67663, Kaiserslautern, Germany
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58
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Lengyel J, Ončák M, Herburger A, van der Linde C, Beyer MK. Infrared spectroscopy of O˙ - and OH - in water clusters: evidence for fast interconversion between O˙ - and OH˙OH . Phys Chem Chem Phys 2017; 19:25346-25351. [PMID: 28891582 PMCID: PMC7100789 DOI: 10.1039/c7cp04577h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We present infrared multiple photon dissociation (IRMPD) spectra of (H2O)nO˙- and (H2O)nOH- cluster ensembles for n[combining macron] ≈ 8 and 47 in the range of 2400-4000 cm-1. Both hydrated ions exhibit the same spectral features, in good agreement with theoretical calculations. Decomposition of the calculated spectra shows that bands originating from H2OO˙- and H2OOH- interactions span almost the whole spectral region of interest. Experimentally, evaporation of OH˙ is observed to a small extent, which requires interconversion of (H2O)nO˙- into (H2O)n-1OH˙OH-, with subsequent H2O evaporation preferred over OH˙ evaporation. The modeling shows that (H2O)nO˙- and (H2O)n-1OH˙OH- cannot be distinguished by IRMPD spectroscopy.
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Affiliation(s)
- Jozef Lengyel
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria.
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59
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Zhang B, Kong X, Jiang S, Zhao Z, Yang D, Xie H, Hao C, Dai D, Yang X, Liu ZF, Jiang L. Infrared-Vacuum Ultraviolet Spectroscopic and Theoretical Study of Neutral Methylamine Dimer. J Phys Chem A 2017; 121:7176-7182. [DOI: 10.1021/acs.jpca.7b08096] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bingbing Zhang
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Xiangtao Kong
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Shukang Jiang
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
- Shanghai
Advanced Research Institute, Chinese Academy of Sciences, 99 Haike
Road, Shanghai 201210, China
- School
of Physical Science and Technology, ShanghaiTech University, 319 Yueyang
Road, Shanghai 200031, China
| | - Zhi Zhao
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Dong Yang
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Hua Xie
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Ce Hao
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Dongxu Dai
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xueming Yang
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhi-Feng Liu
- Department
of Chemistry and Centre for Scientific Modeling and Computation, Chinese University of Hong Kong, Shatin, Hong Kong, China
- Shenzhen
Research Institute, Chinese University of Hong Kong, No. 10, second
Yuexing Road, Shenzhen, China
| | - Ling Jiang
- State
Key Laboratory of Molecular Reaction Dynamics, Collaborative Innovation
Center of Chemistry for Energy and Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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60
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Shachar A, Mayorkas N, Bar I. Structural features of monohydrated 2-(4-fluorophenyl)ethylamine: a combined spectroscopic and computational study. Phys Chem Chem Phys 2017; 19:23999-24008. [PMID: 28831462 DOI: 10.1039/c7cp04195k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A jet-cooled singly hydrated 2-(4-fluorophenyl)ethylamine (4-FPEA-H2O) cluster has been studied by ionization-loss stimulated Raman spectroscopy of the 4-FPEA photofragment and density functional calculations of the parent. Comparison of the measured spectrum of the photofragment to computed scaled harmonic Raman spectra of different conformers of the 4-FPEA-H2O cluster, at the M06-2X/6-311++G(d,p) level of theory, allowed determination of the calculated spectrum that best fits the experimental one. The correlation between them was further supported by the stability of the cluster, as revealed from the calculated energies of the fully optimized geometries of the possible different clusters in the ground electronic state. The corresponding structure consists of a water molecule, which is hydrogen-bonded to the nitrogen lone pair of the folded ethylamino side chain in the most stable gauche conformer of 4-FPEA. The presence of the hydrogen bond and other bonding and non-bonding interactions was also tested by atoms in molecules and noncovalent interaction analyses. The former approach showed no critical points in electron density, while the latter revealed regional topologies of reduced density gradients, indicating the formation of this hydrogen-bond and other attractive and repulsive interactions. The monohydration of 4-FPEA provides an insight into the intra- and inter-molecular interactions that play a role in stabilizing the cluster.
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Affiliation(s)
- Afik Shachar
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
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61
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Ikeda T, Sakota K, Sekiya H. Elevation of the Energy Threshold for Isomerization of 5-Hydroxyindole-(tert-butyl alcohol)1 Cluster Cations. J Phys Chem A 2017; 121:5809-5816. [DOI: 10.1021/acs.jpca.7b05434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takamasa Ikeda
- Department
of Chemistry, Faculty of Science, and Department of Molecular Chemistry,
Graduate School of Science, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, Japan, 819-0395
| | - Kenji Sakota
- Division
of Molecular Material Science, Graduate School of Science, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka, Japan, 558-8585
| | - Hiroshi Sekiya
- Department
of Chemistry, Faculty of Science, and Department of Molecular Chemistry,
Graduate School of Science, Kyushu University, 744, Motooka, Nishi-ku, Fukuoka, Japan, 819-0395
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62
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Lanza G, Chiacchio MA. Quantum Mechanics Approach to Hydration Energies and Structures of Alanine and Dialanine. Chemphyschem 2017; 18:1586-1596. [PMID: 28371186 DOI: 10.1002/cphc.201700149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Indexed: 11/11/2022]
Abstract
A systematic approach to the phenomena related to hydration of biomolecules is reported at the state of the art of electronic-structure methods. Large-scale CCSD(T), MP4-SDQ, MP2, and DFT(M06-2X) calculations for some hydrated complexes of alanine and dialanine (Ala⋅13 H2 O, Ala2 H+ ⋅18 H2 O, and Ala2 ⋅18 H2 O) are compared with experimental data and other elaborate modeling to assess the reliability of a simple bottom-up approach. The inclusion of a minimal number of water molecules for microhydration of the polar groups together with the polarizable continuum model is sufficient to reproduce the relative bulk thermodynamic functions of the considered biomolecules. These quantities depend on the adopted electronic-structure method, which should be chosen with great care. Nevertheless, the computationally feasible MP2 and M06-2X functionals with the aug-cc-pVTZ basis set satisfactorily reproduce values derived by high-level CCSD(T) and MP4-SDQ methods, and thus they are suitable for future developments of more elaborate and hence more biochemically significant peptides.
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Affiliation(s)
- Giuseppe Lanza
- Dipartimento di Scienze del Farmaco, Università di Catania, Viale A. Doria 6, Catania, 95125, Italy
| | - Maria A Chiacchio
- Dipartimento di Scienze del Farmaco, Università di Catania, Viale A. Doria 6, Catania, 95125, Italy
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63
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Schütz M, Matsumoto Y, Bouchet A, Öztürk M, Dopfer O. Microsolvation of the pyrrole cation (Py+) with nonpolar and polar ligands: infrared spectra of Py+–Ln with L = Ar, N2, and H2O (n ≤ 3). Phys Chem Chem Phys 2017; 19:3970-3986. [DOI: 10.1039/c6cp07251h] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
IR spectra and dispersion-corrected density functional calculations of pyrrole cluster ions with Ar, N2, and H2O reveal the competition between H-bonding and π-stacking motifs of this prototypical heterocyclic aromatic cation in a hydrophobic and hydrophilic solvent.
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Affiliation(s)
- Markus Schütz
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | | | - Aude Bouchet
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Murat Öztürk
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
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64
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Gu Q, Su P, Xia Y, Yang Z, Trindle CO, Knee JL. Quantitative probing of subtle interactions among H-bonds in alpha hydroxy carboxylic acid complexes. Phys Chem Chem Phys 2017; 19:24399-24411. [DOI: 10.1039/c7cp03917d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The alpha OH stretching frequency may be affected upon complexing with water and formic acid.
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Affiliation(s)
- Quanli Gu
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
- Chemistry Department
| | - Peifeng Su
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- China
| | - Yong Xia
- State Key Laboratory of Precision Spectroscopy
- School of Physics and Materials Science
- East China Normal University
- Shanghai 200062
- China
| | - Zhijun Yang
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Carl O. Trindle
- Chemistry Department
- University of Virginia
- Charlottesville
- USA
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65
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Miyazaki M, Fujii M. A structural study on the excimer state of an isolated benzene dimer using infrared spectroscopy in the skeletal vibration region. Phys Chem Chem Phys 2017; 19:22759-22776. [DOI: 10.1039/c7cp03480f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
IR spectroscopy on an isolated benzene excimer reveals that both the electronic and vibrational excitations are in resonance.
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Affiliation(s)
- Mitsuhiko Miyazaki
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Masaaki Fujii
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
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66
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Wohlgemuth M, Miyazaki M, Tsukada K, Weiler M, Dopfer O, Fujii M, Mitrić R. Deciphering environment effects in peptide bond solvation dynamics by experiment and theory. Phys Chem Chem Phys 2017; 19:22564-22572. [DOI: 10.1039/c7cp03992a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Probing solvation dynamics at the molecular level: different water migration pathways around a peptide bond.
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Affiliation(s)
- Matthias Wohlgemuth
- Institut für Physikalische und Theoretische Chemie
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
| | - Mitsuhiko Miyazaki
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Kohei Tsukada
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Martin Weiler
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Masaaki Fujii
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Roland Mitrić
- Institut für Physikalische und Theoretische Chemie
- Julius-Maximilians-Universität Würzburg
- 97074 Würzburg
- Germany
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67
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Chatterjee K, Dopfer O. Infrared spectroscopy of hydrated polycyclic aromatic hydrocarbon cations: naphthalene+–water. Phys Chem Chem Phys 2017; 19:32262-32271. [DOI: 10.1039/c7cp06893j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of infrared spectroscopy and quantum chemical calculations unravels the salient properties of the bifurcated CH⋯O ionic hydrogen bond typical for the PAH+–H2O interaction.
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Affiliation(s)
- Kuntal Chatterjee
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
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68
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Miyazaki M, Sakata Y, Schütz M, Dopfer O, Fujii M. Photoionization-induced π ↔ H site switching dynamics in phenol+–Rg (Rg = Ar, Kr) dimers probed by picosecond time-resolved infrared spectroscopy. Phys Chem Chem Phys 2016; 18:24746-54. [DOI: 10.1039/c6cp05016f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Picosecond time-resolved infrared spectroscopy of phenol–rare gas dimer cations reveal delocalization of a wavepacket of the single rare gas atom above and below phenol in around 100 ps.
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Affiliation(s)
- Mitsuhiko Miyazaki
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Yuri Sakata
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Markus Schütz
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Otto Dopfer
- Institut für Optik und Atomare Physik
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Masaaki Fujii
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
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