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Koyama M, Muramatsu S, Hirokawa Y, Iriguchi J, Matsuyama A, Inokuchi Y. Correlation of the Charge Resonance Interaction with Cluster Conformations Probed by Electronic Spectroscopy of Dimer Radical Cations of CO 2 and CS 2 in a Cryogenic Ion Trap. J Phys Chem Lett 2024; 15:1493-1499. [PMID: 38295367 DOI: 10.1021/acs.jpclett.3c03500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Radical cations of dimeric clusters of carbon dioxide/disulfide, [(CX2)2]+• (X = O and S), form strong intracluster bonds through charge resonance (CR) interactions. We herein performed electronic photodissociation spectroscopy of [(CX2)2]+• while regulating the temperature under ambient and cryogenic conditions using a quadrupole ion trap. Both ions exhibited broad band absorption in the near-infrared-visible light region; it is called the "CR band", as a measure of the strength of the CR interaction. Strikingly, this band underwent a noticeable blue shift upon cryogenic cooling for [(CS2)2]+• while not for [(CO2)2]+•. On the basis of quantum chemical calculations with a coupled cluster method, the band shift was attributed to the variations in the relative population of two energetically close conformers found for [(CS2)2]+•. This study highlights a strong correlation between CR interactions and conformation of the radical dimer cations, demonstrating the exceptional significance of cryogenic cooling in the chemistry of ionic molecular clusters.
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Affiliation(s)
- Masahiro Koyama
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Satoru Muramatsu
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Yasuaki Hirokawa
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Jidai Iriguchi
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Akihito Matsuyama
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
| | - Yoshiya Inokuchi
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8526, Japan
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Relationships between the Structural, Vibrational, and Optical Properties of Microporous Cancrinite. CRYSTALS 2021. [DOI: 10.3390/cryst11030280] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The crystal-chemical, vibrational, and optical properties of microporous aluminosilicate cancrinite have been investigated by combining electron probe microanalysis, single-crystal X-ray diffraction, infrared (IR) absorption, Raman, UV-Visible absorption, and electron spin resonance spectroscopy. The behavior of the peaks in the IR spectra was also studied during the dehydration of the sample. The analyzed sample has the following unit cell parameters (P63): a = 12.63189(14) Å, c = 5.13601(7) Å. The empirical formula, based on 12(Si + Al), is Na6.47Ca1.23K0.01[Al5.97Si6.03O24] (CO3)1.45(SO4)0.03Cl0.01·2H2O. The Al-Si framework of AB-type is formed by columns of based-shared “cancrinite” (CAN) cages, containing Na and H2O positions located on the 3-fold axis, and channels with CO3 groups, lying in two mutually exclusive and partially occupied positions in the center of the channel, and split Na/Ca cation sites. The revealed characteristics are somewhat different in comparison with the cancrinite structural features previously described in the literature. Studied crystals change color from grayish-pink to blue after X-ray irradiation (104 Gy). The blue color of the irradiated cancrinite is caused by the formation (CO3)−● radicals in the crystals. Combining the results obtained using the selected methods will provide a better understanding of the relationships between the structural, chemical, and optical-physical properties of microporous aluminosilicates.
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Nakashima Y, Okutsu K, Fujimoto K, Ito Y, Kanno M, Nakano M, Ohshimo K, Kono H, Misaizu F. Visible photodissociation of the CO 2 dimer cation: fast and slow dissociation dynamics in the excited state. Phys Chem Chem Phys 2019; 21:3083-3091. [PMID: 30672937 DOI: 10.1039/c8cp07068g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Velocity and angular distributions of photofragment CO2+ ions produced from mass-selected (CO2)2+ at 532 nm excitation were observed in an ion imaging experiment. The velocity distribution was assigned to two components, fast and slow velocity components, which was consistent with the previous study by Bowers et al. The anisotropy parameters of the angular distributions for the fast and slow velocity components were experimentally determined to be βfast = 1.52 ± 0.14 and βslow = 0.46 ± 0.10, respectively. In the theoretical approach, potential energy surfaces (PESs) of (CO2)2+ were calculated along two coordinates, the intermolecular distance and mutual orientations of the CO2 monomers. In addition, molecular dynamics simulations were performed. The visible transition of the most stable staggered structure of (CO2)2+ was attributed to C[combining tilde]2Ag ← X[combining tilde]2Bu by an excited state calculation. On the PES of the C[combining tilde] state, a potential well was found in which the two CO2 monomers lay side by side to each other, in addition to a repulsive slope along the intermolecular distance. The results of the simulations confirmed that the fragment CO2+ ions with fast velocity and large anisotropy originated from the rapid dissociation of (CO2)2+ on the repulsive slope. Meanwhile, the fragment CO2+ ions with slow velocity and small anisotropy were expected to emerge from statistical dissociation after large amplitude libration of CO2 molecules which was caused by the potential well in the excited state PES.
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Affiliation(s)
- Yuji Nakashima
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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Lei X, Kong X, Zhang B, Zhao Z, Dai D, Yang X, Jiang L. Temperature-Dependent Infrared Photodissociation Spectroscopy of (CO 2) 3+ Cation. J Phys Chem A 2018; 122:8054-8057. [PMID: 30226989 DOI: 10.1021/acs.jpca.8b07933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Infrared photodissociation spectra of He-buffer-gas-cooled (CO2)3+ were measured at ion trap temperatures of 15, 50, 150, and 280 K. Electronic structure calculations at the mPW2PLYPD/aug-cc-pVDZ level were performed to identify the structures of the low-lying isomers and to assign the observed spectral features. The experimental and calculated infrared spectra show that the (CO2)3+ cations formed in the source are primarily dominated by the charge partially delocalized C2O4+ motif, in which the positive charge is partially delocalized over the two CO2 molecules. Thermal heating at elevated internal temperature supplies sufficient energy to overcome the isomerization barriers and gives access to the charge completely delocalized (CO2) n+ ( n = 3) motif, in which the positive charge is almost completely delocalized over all of the constituent CO2 molecules.
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Affiliation(s)
- Xin Lei
- State Key Laboratory of Molecular Reaction Dynamics , 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
| | - Xiangtao Kong
- State Key Laboratory of Molecular Reaction Dynamics , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Bingbing Zhang
- State Key Laboratory of Molecular Reaction Dynamics , 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.,State Key Laboratory of Fine Chemicals , Dalian University of Technology , 2 Linggong Road , Dalian 116024 , China
| | - Zhi Zhao
- State Key Laboratory of Molecular Reaction Dynamics , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Dongxu Dai
- State Key Laboratory of Molecular Reaction Dynamics , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
| | - Ling Jiang
- State Key Laboratory of Molecular Reaction Dynamics , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , 457 Zhongshan Road , Dalian 116023 , China
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Sterniczuk M, Yakabuskie PA, Wren JC, Jacob JA, Bartels DM. Low LET radiolysis escape yields for reducing radicals and H2 in pressurized high temperature water. Radiat Phys Chem Oxf Engl 1993 2016. [DOI: 10.1016/j.radphyschem.2015.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Moin ST, Weiss AK, Rode BM. Ionized CO2 and SO2 in aqueous environment: Ab initio QMCF-MD studies. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Liu J, Cukier RI, Bu Y. Bending Vibration-Governed Solvation Dynamics of an Excess Electron in Liquid Acetonitrile Revealed by Ab Initio Molecular Dynamics Simulation. J Chem Theory Comput 2013; 9:4727-34. [DOI: 10.1021/ct4002174] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinxiang Liu
- School
of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100 Shandong, P. R. China
| | - Robert I. Cukier
- Department of Chemistry, Michigan State University, East Lansing, 48824 Michigan, United States
| | - Yuxiang Bu
- School
of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100 Shandong, P. R. China
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Wang Z, Liu J, Zhang M, Cukier RI, Bu Y. Solvation and evolution dynamics of an excess electron in supercritical CO2. PHYSICAL REVIEW LETTERS 2012; 108:207601. [PMID: 23003186 DOI: 10.1103/physrevlett.108.207601] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 02/08/2012] [Indexed: 06/01/2023]
Abstract
We present an ab initio molecular dynamics simulation of the dynamics of an excess electron solvated in supercritical CO2. The excess electron can exist in three types of states: CO2-core localized, dual-core localized, and diffuse states. All these states undergo continuous state conversions via a combination of long lasting breathing oscillations and core switching, as also characterized by highly cooperative oscillations of the excess electron volume and vertical detachment energy. All of these oscillations exhibit a strong correlation with the electron-impacted bending vibration of the core CO2, and the core-switching is controlled by thermal fluctuations.
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Affiliation(s)
- Zhiping Wang
- The Center of Molecular Modeling & Simulation, Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, People's Republic of China
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Grein F, Chevrier DM. Theoretical studies on clusters of carbonate with carbon dioxide, CO 31–/2–(CO 2) n, for n= 1–5 — Comparison of carbonate clusters with sulfate clusters. CAN J CHEM 2012. [DOI: 10.1139/v2012-019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Density functional theory (DFT) calculations were performed on the geometries and energies of CO31–/2–(CO2)nclusters with n = 1–5. For small clusters (n = 1 or 2), coupled cluster energies were obtained. Up to three CO2molecules are bound covalently to the dianion. Only weak electrostatic bonds were found in the monoanions. Calculated binding energies for the monoanions are in reasonable agreement with experimental values. The calculated adiabatic electron detachment energy for the dianion is –0.07 eV at n = 5, indicating that at least six CO2molecules will have to be added to CO32–before the dianionic cluster becomes, in the gas phase, more stable than the monoanionic one. In comparison, for sulfate – carbon dioxide clusters, stabilization occurs at n = 2. Carbonate clusters are compared with sulfate clusters for three solvent molecules: CO2, SO2, and H2O. Carbonate clusters have larger binding energies than sulfate clusters. For a given dianion, binding energies are largest for SO2and smallest for H2O. However, in all cases, stabilization of the carbonate dianion by clustering is more difficult to achieve than stabilization of the sulfate dianion.
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Affiliation(s)
- Friedrich Grein
- Department of Chemistry, University of New Brunswick, PO Box 4400, Fredericton, NB E3B 5A3, Canada
| | - Daniel M. Chevrier
- Department of Chemistry, University of New Brunswick, PO Box 4400, Fredericton, NB E3B 5A3, Canada
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Grein F, Chan JK, Liko I. On the stabilization of the carbonate dianion by sulfur dioxide. CAN J CHEM 2010. [DOI: 10.1139/v10-115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The stabilization in the gas phase of the carbonate dianion [Formula: see text] by SO2 molecules is being investigated. The geometries of various isomers of [Formula: see text] (SO2)n and [Formula: see text] (SO2)n, for n = 1–4, have been optimized by the B3PW91/6−311+G(3df) method. Single-point CCSD and CCSD(T) energies at the DFT-optimized geometries were obtained for n = 1–3, using the 6−311+G(d) basis set. For n = 1 and 2, the monoanionic clusters are adiabatically more stable than the dianionic ones. However, starting at n = 3, they become less stable. The CCSD adiabatic electron detachment energy of the dianionic cluster switches from −0.39 eV for n = 2 to +0.20 eV for n = 3. The vertical electron detachment energy turns positive at n = 2, with a CCSD value of 1.35 eV. Several of the less stable dianionic, and most of the monoionic clusters, are characterized by the transfer of an oxygen atom from CO3 to SO2, forming [Formula: see text] or [Formula: see text] units, owing to [Formula: see text] + CO2 being more stable than [Formula: see text] + SO2. For the stabilization of the sulfate dianion by stepwise hydration, studied both experimentally and theoretically by other groups, a minimum of three water molecules was required.
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Affiliation(s)
- Friedrich Grein
- Department of Chemistry, University of New Brunswick, PO Box 4400, Fredericton, NB E3B 5A3, Canada
| | - Justin K. Chan
- Department of Chemistry, University of New Brunswick, PO Box 4400, Fredericton, NB E3B 5A3, Canada
| | - Idlir Liko
- Department of Chemistry, University of New Brunswick, PO Box 4400, Fredericton, NB E3B 5A3, Canada
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Inokuchi Y, Matsushima R, Kobayashi Y, Ebata T. Ion core structure in (N2O)n+(n=2–8) studied by infrared photodissociation spectroscopy. J Chem Phys 2009; 131:044325. [DOI: 10.1063/1.3194801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Pieniazek PA, Sundstrom EJ, Bradforth SE, Krylov AI. Degree of initial hole localization/delocalization in ionized water clusters. J Phys Chem A 2009; 113:4423-9. [PMID: 19281180 DOI: 10.1021/jp811059z] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The electronic structure of ionized bulk liquid water presents a number of theoretical challenges. Not the least of these is the realization that the detailed geometry of the hydrogen bonding network is expected to have a strong effect on the electronic couplings between water molecules and thus the degree of delocalization of the initially ionized system. This problem is approached from a cluster perspective where a high-level coupled cluster description of the electronic structure is still possible. Building on the work and methodology developed for the water dimer cation [J. Phys. Chem. A 2008, 112, 6159], the character and spectrum of electronic states of the water hole and their evolution from the dimer into higher clusters is presented. As the time evolution of the initially formed hole can in principle be followed by the system's transient absorption spectrum, the state spacings and transition strengths are computed. An analysis involving Dyson orbitals is applied and shows a partially delocalized nature of states. The issue of conformation disorder in the hydrogen bonding geometry is addressed for the water dimer cation.
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Affiliation(s)
- Piotr A Pieniazek
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-0482, USA
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Affiliation(s)
- Ilya A. Shkrob
- Chemistry Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, Illinois 60439
| | - James F. Wishart
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000
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Inokuchi Y, Muraoka A, Nagata T, Ebata T. An IR study of (CO2)n+ (n=3–8) cluster ions in the 1000–3800 cm–1 region. J Chem Phys 2008; 129:044308. [DOI: 10.1063/1.2953710] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Abstract
High level ab initio calculations along with isodesmic reactions have been used to derive a set of self-consistent free energies of formation for carbonate and nitrate species in the gas phase and in aqueous solution. The results show that HCO3· is a strong acid, pKa = –4.1, and that E°(CO3·–/CO32) = 1.23 ± 0.15 V.Key words: carbonate radical anion, theoretical, thermochemistry, acidity, reduction potentials.
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Zhang Y, Yang J, Yu YX. Dielectric Constant and Density Dependence of the Structure of Supercritical Carbon Dioxide Using a New Modified Empirical Potential Model: A Monte Carlo Simulation Study. J Phys Chem B 2005; 109:13375-82. [PMID: 16852670 DOI: 10.1021/jp045741r] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Two modified versions of the Elementary Physical Model (EPM) [J. Phys. Chem. 1995, 99, 12021] for supercritical carbon dioxide have been proposed in this work and their validities are affirmed by computing the thermodynamic properties and dielectric constant up to 910 kg/m3 with use of canonical ensemble Monte Carlo simulation. Simulations performed for 500 molecules with the EPM2-M model reproduce the experimental data accurately at all thermodynamic states. The structural analyses demonstrate that the aggregation is strong at low density while the coordination number is large at high density. In addition, a detailed study on the radial and angular correlation functions reveals that the T-shaped geometry is dominate while a variety of other structures still appear in the first coordination shell. Furthermore, the angular correlation functions show that the probability of a molecule being oriented toward the convex side of another molecule is equal to that pointing toward the concave side since the molecular nonlinearity of carbon dioxide is only marginal. As the distance between two molecules increases, the preferred orientations disappear quickly and all the results are in good agreement with the prior ab initio calculation [J. Chem. Phys. 2004, 120, 9694].
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Affiliation(s)
- Yang Zhang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Saharay M, Balasubramanian S. Ab initio molecular-dynamics study of supercritical carbon dioxide. J Chem Phys 2004; 120:9694-702. [PMID: 15267984 DOI: 10.1063/1.1701838] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Car-Parrinello molecular-dynamics simulations of supercritical carbon dioxide (scCO(2)) have been performed at the temperature of 318.15 K and at the density of 0.703 g/cc in order to understand its microscopic structure and dynamics. Atomic pair correlation functions and structure factors have been obtained and good agreement has been found with experiments. In the supercritical state the CO(2) molecule is marginally nonlinear, and thus possesses a dipole moment. Analyses of angle distributions between near neighbor molecules reveal the existence of configurations with pairs of molecules in the distorted T-shaped geometry. The reorientational dynamics of carbon dioxide molecules, investigated through first- and second-order time correlation functions, exhibit time constants of 620 and 268 fs, respectively, in good agreement with nuclear magnetic resonance experiments. The intramolecular vibrations of CO(2) have been examined through an analysis of the velocity autocorrelation function of the atoms. These reveal a red shift in the frequency spectrum relative to that of an isolated molecule, consistent with experiments on scCO(2). The results have also been compared to classical molecular-dynamics calculations employing an empirical potential.
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Affiliation(s)
- Moumita Saharay
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560 064, India.
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Shkrob IA, Sauer MC, Jonah CD, Takahashi K. Ionic and Neutral Species in Pulse Radiolysis of Supercritical CO2. 1. Transient Absorption Spectroscopy, Electric Field Effect, and Charge Dynamics. J Phys Chem A 2002. [DOI: 10.1021/jp021494k] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ilya A. Shkrob
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - Myran C. Sauer
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - Charles D. Jonah
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
| | - Kenji Takahashi
- Chemistry Division, Argonne National Laboratory, Argonne, Illinois 60439
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