1
|
Garbacz P. Spin–spin coupling in the HD molecule determined from 1H and 2H NMR experiments in the gas-phase. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2014.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
2
|
CAPPELLETTI D, VECCHIOCATTIVI F, PIRANI F, HECK EL, DICKINSON AS. An intermolecular potential for nitrogen from a multi-property analysis. Mol Phys 2010. [DOI: 10.1080/002689798169177] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
3
|
Paterson G, Marinakis S, Costen ML, McKendrick KG, Kłos J, Toboła R. Orientation and alignment depolarization in OH(X Π2)+Ar/He collisions. J Chem Phys 2008; 129:074304. [DOI: 10.1063/1.2967861] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
4
|
Sanchez-Fortún Stoker J, Dham AK, McCourt FRW, Dickinson AS. Accuracy of recent potential energy surfaces for the He–N2 interaction. II. Molecular beam scattering and bulk gas relaxation phenomena. J Chem Phys 2008; 128:214309. [DOI: 10.1063/1.2928805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
5
|
Dham AK, Meath WJ, Jechow JW, McCourt FRW. New exchange-Coulomb N2-Ar potential-energy surface and its comparison with other recent N2-Ar potential-energy surfaces. J Chem Phys 2007; 124:034308. [PMID: 16438584 DOI: 10.1063/1.2159001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The reliability of five N2-Ar potential-energy surfaces in representing the N2-Ar interaction has been investigated by comparing their abilities to reproduce a variety of experimental results, including interaction second viral coefficients, bulk transport properties, relaxation phenomena, differential scattering cross sections, and the microwave and infrared spectra of the van der Waals complexes. Four of the surfaces are the result of high-level ab initio quantal calculations; one of them utilized fine tuning by fitting to microwave data. To date, these four potential-energy surfaces have only been tested against experimental microwave data. The fifth potential-energy surface, based upon the exchange-Coulomb potential-energy model for the interaction of closed-shell species, is developed herein: it is a combination of a damped dispersion energy series and ab initio calculations of the Heitler-London interaction energy, and has adjustable parameters determined by requiring essentially simultaneous agreement with selected quality interaction second viral coefficient and microwave data. Comparisons are also made with the predictions of three other very good literature potential-energy surfaces, including the precursor of the new exchange-Coulomb potential-energy surface developed here. Based upon an analysis of a large body of information, the new exchange-Coulomb and microwave-tuned ab initio potential-energy surfaces provide the best representations of the N2-Ar interaction; nevertheless, the other potential-energy surfaces examined still have considerable merit with respect to the prediction of specific properties of the N2-Ar van der Waals complex. Of the two recommended surfaces, the new exchange-Coulomb surface is preferred on balance due to its superior predictions of the effective cross sections related to various relaxation phenomena, and to its reliable, and relatively simple, representation of the long-range part of the potential-energy surface. Moreover, the flexibility still inherent in the exchange-Coulomb potential form can be further exploited, if required, in future studies of the N2-Ar interaction.
Collapse
Affiliation(s)
- Ashok K Dham
- Department of Physics, Punjabi University, Patiala 147002, India
| | | | | | | |
Collapse
|
6
|
|
7
|
Ter Horst MA, Jameson CJ, Jameson AK. Molecular reorientation of CD(4) in gas-phase mixtures. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2006; 44:241-8. [PMID: 16477693 DOI: 10.1002/mrc.1756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Spin-lattice relaxation times were measured for the deuterons in CD(4) in pure gas and in mixtures with the following buffer gases: Ar, Kr, Xe, HCl, N(2), CO, CO(2), CF(4), and SF(6). Effective collision cross sections sigma(theta, 2) for the molecular reorientation of CD(4) in collisions with these ten molecules are obtained as a function of temperature. These cross sections are compared with the corresponding cross sections sigma(J) obtained from (1)H spin-rotation relaxation in mixtures of CH(4) with the same set of buffer gases. Various classical reorientation models typically applied in liquids predict different ratios of the reduced correlation times for the reorientation of spherical tops. The Langevin model comes closest to predicting the magnitude of the sigma(theta, 2)/sigma(J) ratio that we obtain for CD(4).
Collapse
Affiliation(s)
- Marc A Ter Horst
- Department of Chemistry, University of North Carolina at Chapel Hill, Venable and Kenan Laboratories, Chapel Hill, North Carolina 27599, USA
| | | | | |
Collapse
|
8
|
Umecky T, Kanakubo M, Ikushima Y. Experimental Determination of Reorientational Correlation Time of CO2 over a Wide Range of Density and Temperature. J Phys Chem B 2003. [DOI: 10.1021/jp022604q] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tatsuya Umecky
- Supercritical Fluid Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Nigatake 4-2-1, Miyagino-ku, Sendai 983-8551, Japan, CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan, and Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Mitsuhiro Kanakubo
- Supercritical Fluid Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Nigatake 4-2-1, Miyagino-ku, Sendai 983-8551, Japan, CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan, and Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Yutaka Ikushima
- Supercritical Fluid Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Nigatake 4-2-1, Miyagino-ku, Sendai 983-8551, Japan, CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan, and Department of Chemistry, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| |
Collapse
|
9
|
Rudert AD, Martin J, Gao WB, Zacharias H, Halpern JB. Collisional effects on angular momentum orientation in acetylene X̃ 1Σg+ (ν2″=1,j″). II. Disorientation by rotationally elastic and multiple inelastic collisions. J Chem Phys 2000. [DOI: 10.1063/1.481612] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
|
10
|
Rudert AD, Martin J, Gao WB, Halpern JB, Zacharias H. Collisional effects on angular momentum orientation in acetylene X̃ 1Σg+ (ν2″=1,j″). I. Preparation, detection and conservation in single collisions. J Chem Phys 1999. [DOI: 10.1063/1.480286] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
|
11
|
Jameson CJ, ter Horst MA, Jameson AK. Quadrupolar spin relaxation of 14N in NNO in collisions with various molecules. J Chem Phys 1998. [DOI: 10.1063/1.477718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
12
|
Sabzyan H, Power WP, McCourt FRW. Proton and deuteron spin-lattice relaxation times in HD–Ar mixtures: A combined experimental and theoretical study. J Chem Phys 1998. [DOI: 10.1063/1.476025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
13
|
de Dios AC, Jameson CJ. The129Xe nuclear shielding surfaces for Xe interacting with linear molecules CO2, N2, and CO. J Chem Phys 1997. [DOI: 10.1063/1.474800] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
14
|
|
15
|
Augustine MP, Zilm KW. Optical pumping magnetic resonance in high magnetic fields: Characterization of nuclear relaxation during pumping. J Chem Phys 1996. [DOI: 10.1063/1.472800] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
16
|
Dham AK, McCourt FRW, Meath WJ. Exchange–Coulomb model potential energy surface for the N2–Ar interaction. J Chem Phys 1995. [DOI: 10.1063/1.470158] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
17
|
Dham AK, Meath WJ. Exchange-Coulomb potential energy surfaces, and related physical properties, for KrN2. Chem Phys 1995. [DOI: 10.1016/0301-0104(95)00082-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
18
|
McCourt FRW, ter Horst MA, Jameson CJ. N2–Kr interaction: A multiproperty analysis. J Chem Phys 1995. [DOI: 10.1063/1.469306] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
19
|
ter Horst MA, Jameson CJ. Classical trajectories on simple model potentials for N2–Kr: Comparison with relaxation and other data. J Chem Phys 1995. [DOI: 10.1063/1.469492] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
20
|
Temkin SI, Burshtein AI. Comment on ‘‘14N spin relaxation of N2in buffer gases. Cross sections for molecular reorientation and rotational energy transfer’’ [J. Chem. Phys.95, 5799 (1991)]. J Chem Phys 1994. [DOI: 10.1063/1.466609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
21
|
Jameson CJ, Jameson AK, ter Horst MA. Response to ‘‘Comment on ‘ 14N spin relaxation studies of N 2in buffer gases. Cross sections for molecular reorientation and rotational energy transfer’ ’’ [J. Chem. Phys. 100, 1775 (1994)]. J Chem Phys 1994. [DOI: 10.1063/1.466557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|