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Fišer J, Polák R. On the theoretical description of nuclear quadrupole coupling in Π states of small molecules. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2013.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Brown A, Wasylishen RE. Nuclear quadrupole coupling constants for N2O: experiment and theory. J Phys Chem A 2012; 116:9769-76. [PMID: 22954039 DOI: 10.1021/jp306213n] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The nuclear quadrupole coupling constants (NQCCs) for the nitrogen and oxygen nuclei in N(2)O have been determined using a variety of computational methods (MP2, QCISD, DFT with B3LYP, PBE0, and B3PW91 functionals, CCSD, CCSD(T), CASSCF, and MRCI) combined with correlation-consistent basis sets. When compared to the available experimental determinations, the results demonstrate that only CCSD(T) and MRCI methods are capable of accurately predicting the NQCCs of the central and terminal nitrogen atoms. The spin-rotation and magnetic shielding tensors have also been determined and compared to experimental measurements where available. (14)N and (17)O NMR relaxation data for N(2)O in the gas phase and a variety of solvents is reported. The increase in the ratio of (14)N spin-lattice relaxation times in solvent for the central and terminal nitrogens supports previous reports of the modification of the electric field gradients at these nuclei in van der Waals complexes. Ab initio computations for the linear FH···N(2)O complex confirm the large change in EFGs imposed by a single perturber.
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Affiliation(s)
- Alex Brown
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2.
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Blanco S, López JC, Mata S, Alonso JL. Conformations of γ-Aminobutyric Acid (GABA): The Role of the n→π* Interaction. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002535] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Blanco S, López JC, Mata S, Alonso JL. Conformations of γ-Aminobutyric Acid (GABA): The Role of the n→π* Interaction. Angew Chem Int Ed Engl 2010; 49:9187-92. [DOI: 10.1002/anie.201002535] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Shi L, Wu W, Qin G, Lü J, Chen M, Zhao G. DFT Investigation of Nuclear 14N Quadrupole Coupling Constants for Four HMX Polymorphs. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.201090107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bruna PJ, Grein F. Axial Asymmetry of the Charge- and Spin-Density Distributions in Π States. Molecular Quadrupole Moments and Hyperfine Coupling Constants of CH, NH, OH, CF, LiO, NO, and FO. J Phys Chem A 2009; 113:2615-22. [DOI: 10.1021/jp807885c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Pablo J. Bruna
- Department of Chemistry and Centre for Laser, Atomic and Molecular Sciences (CLAMS), University of New Brunswick, Fredericton, New Brunswick, Canada E3B 5E3
| | - Friedrich Grein
- Department of Chemistry and Centre for Laser, Atomic and Molecular Sciences (CLAMS), University of New Brunswick, Fredericton, New Brunswick, Canada E3B 5E3
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Persons J, Harbison GS. The (14)N quadrupole coupling in hexamethylene triperoxide diamine (HMTD). MAGNETIC RESONANCE IN CHEMISTRY : MRC 2007; 45:905-908. [PMID: 17924359 DOI: 10.1002/mrc.2085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Using high-field NMR, we have determined the magnitude of the nuclear quadrupole interaction in hexamethylene triperoxide diamine (HMTD), the explosive allegedly used in the London bombings of July 2005. The experimental quadrupolar coupling constant, 5.334 MHz, is in good agreement with quantum chemical calculations. The predicted single zero-field transition frequency should lie in a relatively empty part of the (14)N nuclear quadrupole resonance (NQR) spectrum; the spin relaxation rate is reasonably fast.
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Affiliation(s)
- John Persons
- Department of Chemistry, University of Nebraska at Lincoln, Lincoln, NE 68588-0304, USA
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Polák R, Fišer J. Multiconfiguration SCF electric field gradients in (NO)2 and its singly charged ions. Chem Phys 2006. [DOI: 10.1016/j.chemphys.2006.03.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Minaev B, Tunell I, Salek P, Loboda O, Vahtras O, Ågren * H. Singlet–triplet transitions in three-atomic molecules studied by time-dependent MCSCF and density functional theory. Mol Phys 2004. [DOI: 10.1080/00268970410001668435] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Prasad R. Theoretical study of fine and hyperfine interactions in N3+, N3⋅, and N3−. J Chem Phys 2003. [DOI: 10.1063/1.1615235] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Palmer MH, Guest MF. Assignment of the electronic states of pyrazole by ab initio multi-reference configuration interaction calculations. Chem Phys 2003. [DOI: 10.1016/s0301-0104(03)00238-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Polák R, Fišer J. A CASSCF/icMRCI study of the electric field gradient in low-lying electronic states of N2+/N2. Chem Phys 2003. [DOI: 10.1016/s0301-0104(03)00138-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Harbison GS, Kye YS, Penner GH, Grandin M, Monette M. 14N Quadrupolar, 14N and 15N Chemical Shift, and 14N−H Dipolar Tensors of Sulfamic Acid. J Phys Chem B 2002. [DOI: 10.1021/jp0261962] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gerard S. Harbison
- Department of Chemistry, University of Nebraska at Lincoln, Lincoln, Nebraska 68588-0304, Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, Canada, and Bruker Spectrospin Canada, 555 Steeles Avenue East, Milton, Ontario, Canada
| | - Young-Sik Kye
- Department of Chemistry, University of Nebraska at Lincoln, Lincoln, Nebraska 68588-0304, Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, Canada, and Bruker Spectrospin Canada, 555 Steeles Avenue East, Milton, Ontario, Canada
| | - Glenn H. Penner
- Department of Chemistry, University of Nebraska at Lincoln, Lincoln, Nebraska 68588-0304, Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, Canada, and Bruker Spectrospin Canada, 555 Steeles Avenue East, Milton, Ontario, Canada
| | - Michelle Grandin
- Department of Chemistry, University of Nebraska at Lincoln, Lincoln, Nebraska 68588-0304, Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, Canada, and Bruker Spectrospin Canada, 555 Steeles Avenue East, Milton, Ontario, Canada
| | - Martine Monette
- Department of Chemistry, University of Nebraska at Lincoln, Lincoln, Nebraska 68588-0304, Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, Canada, and Bruker Spectrospin Canada, 555 Steeles Avenue East, Milton, Ontario, Canada
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Maris A, López J, Alonso J, Caminati W. An investigation of the quadrupole coupling of two N nuclei in the complex pyrimidine–Ar by molecular beam Fourier transform microwave spectroscopy. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(02)00148-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Polák R, Fiser J. Multireference CI calculation of nuclear quadrupole coupling constants of CN+ and CN-: rovibrational dependence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2002; 58:2029-2041. [PMID: 12164500 DOI: 10.1016/s1386-1425(01)00653-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The 14N quadrupole coupling constants of rovibrational levels of the X1sigma+ and c1sigma+ states of CN+, and the ground electronic state of CN- are calculated from molecular wavefunctions which explicitly describe nuclear displacement. From the electronic states considered, the excited 1sigma+ state of CN is predicted to exhibit the strongest N coupling, at least in the ground vibrational state. Compared to the vibrational dependence of the 14N QCC's, which is found to be significant in all cases, the rotational dependence is predicted to be unimportant. Special attention is paid to the assessment of adequacy of the expectation value approach to the evaluation of the electric field gradient tensor within the applied multireference configuration interaction formalism. Spectroscopic constants are derived from corresponding potential energy curves to testify to the quality of the correlated wave functions used.
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Affiliation(s)
- R Polák
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague.
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López JC, de Luis A, Blanco S, Lesarri A, Alonso JL. Investigation of the quadrupole coupling hyperfine structure due to two nuclei by molecular beam Fourier transform microwave spectroscopy: spectra of dichlorofluoromethane and pyridazine. J Mol Struct 2002. [DOI: 10.1016/s0022-2860(02)00099-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Harbison GS. The electric dipole polarity of the ground and low-lying metastable excited states of NF. J Am Chem Soc 2002; 124:366-7. [PMID: 11792193 DOI: 10.1021/ja0159261] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
NF (nitrogen monofluoride, fluoroimidogen) is isoelectronic with O2, and, like O2, it has a triplet configuration in the ground state, with two low-lying metastable singlet excited states. The dipole moment of the a 1Delta excited state was measured in 1973 to be 0.37 +/- 0.06 D; at the time its polarity was assumed to be normal (i.e., with the negative charge on the fluorine). However, high-level electronic structure calculations, which reproduce with high accuracy the known spectroscopic constants of the ground and excited states of NF, predict a dipole moment of -0.388 D for a 1Delta NF, indicating that, despite the electronegativities, this molecule carries a positive charge on fluorine. The other singlet state is predicted to have an even larger negative dipole moment; the ground-state triplet should have a very small positive moment. Singlet NF resembles in this respect CO and BF, from the N2 isoelectronic series, both of which also have negative dipole moments.
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Affiliation(s)
- Gerard S Harbison
- Department of Chemistry, University of Nebraska at Lincoln, Lincoln, Nebraska 68588-0304, USA
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20
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Pd. R, Chandra P. Ground and excited states of HNC, NH, and NH2 transients:Ab initiogeometries, electronic structures, and molecular properties. J Chem Phys 2001. [DOI: 10.1063/1.1358869] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Torrent M, Mansour D, Day EP, Morokuma K. Quantum Chemical Study on Oxygen-17 and Nitrogen-14 Nuclear Quadrupole Coupling Parameters of Peptide Bonds in α-Helix and β-Sheet Proteins. J Phys Chem A 2001. [DOI: 10.1021/jp004398x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maricel Torrent
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, and Department of Physics, Emory University, Atlanta, Georgia 30322
| | - Danielle Mansour
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, and Department of Physics, Emory University, Atlanta, Georgia 30322
| | - Edmund P. Day
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, and Department of Physics, Emory University, Atlanta, Georgia 30322
| | - Keiji Morokuma
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, and Department of Physics, Emory University, Atlanta, Georgia 30322
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22
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Coriani S, Halkier A, Jørgensen P, Gauss J, Christiansen O, Rizzo A. Coupled cluster investigation of Sternheimer shieldings and electric field gradient polarizabilities. J Chem Phys 2000. [DOI: 10.1063/1.481970] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Pernpointner M, Schwerdtfeger P. Extension of the PCNQM model for the calculation of electric field gradient tensors in asymmetric molecules. The carbon electric field gradient in CH3CHFCl. Chem Phys Lett 2000. [DOI: 10.1016/s0009-2614(99)01248-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Torrent M, Musaev DG, Morokuma K, Ke SC, Warncke K. Calculation of Nuclear Quadrupole Parameters in Imidazole Derivatives and Extrapolation to Coenzyme B12. A Theoretical Study. J Phys Chem B 1999. [DOI: 10.1021/jp991612c] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Bryant PL, Harwell CR, Wu K, Fronczek FR, Hall RW, Butler LG. Single-Crystal 27Al NMR of Andalusite and Calculated Electric Field Gradients: the First Complete NMR Assignment for a 5-Coordinate Aluminum Site. J Phys Chem A 1999. [DOI: 10.1021/jp990374i] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pamela L. Bryant
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
| | - Chris R. Harwell
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
| | - Katherine Wu
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
| | - Frank R. Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
| | - Randall W. Hall
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
| | - Leslie G. Butler
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803
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27
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Kisiel Z, Białkowska-Jaworska E, Pszczółkowski L. Nuclear quadrupole coupling in Cl2C=CHCl and Cl2C=CH2: Evidence for systematic differences in orientations between internuclear and field gradient axes for terminal quadrupolar nuclei. J Chem Phys 1998. [DOI: 10.1063/1.477722] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rizzo A, Ruud K, Helgaker T, Jaszuński M. Electric field gradient, generalized Sternheimer shieldings and electric field gradient polarizabilities by multiconfigurational SCF response. J Chem Phys 1998. [DOI: 10.1063/1.476794] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Halkier A, Koch H, Christiansen O, Jo/rgensen P, Helgaker T. First-order one-electron properties in the integral-direct coupled cluster singles and doubles model. J Chem Phys 1997. [DOI: 10.1063/1.474384] [Citation(s) in RCA: 116] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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BACSKAY GB, BUCKINGHAM AD. Nuclear quadrupole coupling constants in alkali halide molecules: anab initioquantum chemical study. Mol Phys 1997. [DOI: 10.1080/002689797171283] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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Pak Y, Woods RC, Peterson KA. A coupled cluster study of the spectroscopic properties and electric dipole moment functions of nitrous sulfide. J Chem Phys 1996. [DOI: 10.1063/1.471425] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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32
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Hemmingsen L, Ryde U. Ab Initio Calculations of Electric Field Gradients in Cadmium Complexes. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9526410] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lars Hemmingsen
- Department of Mathematics and Physics, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark, and Department of Theoretical Chemistry, Chemical Center, University of Lund, P.O. Box 124, S-221 00, Sweden
| | - Ulf Ryde
- Department of Mathematics and Physics, The Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark, and Department of Theoretical Chemistry, Chemical Center, University of Lund, P.O. Box 124, S-221 00, Sweden
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Bagno A, Scorrano G. Site of Ionization of Polyfunctional Bases and Acids. 2. Ab Initio Electric Field Gradients at Nitrogen, Oxygen, Phosphorus, and Sulfur in Neutral and Ionized Forms. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9518421] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alessandro Bagno
- Centro CNR Meccanismi Reazioni Organiche, Dipartimento di Chimica Organica, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Gianfranco Scorrano
- Centro CNR Meccanismi Reazioni Organiche, Dipartimento di Chimica Organica, Università di Padova, via Marzolo 1, 35131 Padova, Italy
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34
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King BF, Farrar TC, Weinhold F. Quadrupole coupling constants in linear (HCN)nclusters: Theoretical and experimental evidence for cooperativity effects in C–H⋅⋅⋅N hydrogen bonding. J Chem Phys 1995. [DOI: 10.1063/1.469646] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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35
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Ab initio MO calculations of nuclear quadrupole coupling constants of 35Cl and 2H nuclei in CH3Cl, CH2Cl2, CCl2 and CHCl molecules. J Mol Struct 1995. [DOI: 10.1016/0022-2860(94)08469-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Vojtík J, Fišer J. Ab initio calculation of the nuclear quadrupole coupling constants of rovibrational levels in the X2Σ+ state of all isotopic variants of LiH−. Chem Phys 1995. [DOI: 10.1016/0301-0104(94)00404-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Olsen J, Sundholm D. The nuclear quadrupole moment of 14N obtained from finite element MCHF calculations on N+ (2p3p) 1P. Chem Phys Lett 1994. [DOI: 10.1016/0009-2614(94)00699-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Bishop DM, Cybulski SM. Calculation of the electric field gradients, generalized Sternheimer shielding constants, and electric‐field‐gradient polarizabilities for ten small molecules. J Chem Phys 1994. [DOI: 10.1063/1.467020] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ulrich Suter H, Ha TK. Influence of the atomic basis set on the calculated molecular properties and on the inversion potential of ammonia. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0166-1280(93)87124-v] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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Vojtík J, Paidarová I, Češpiva L, Šavrda J. Energy derivative method in MRD CI calculation of rovibrational dependence of nuclear quadrupole coupling constants of diatomic molecules. Application to 7Li2H in the X 1∑+ and A 1∑+ states. Chem Phys 1993. [DOI: 10.1016/0301-0104(93)80090-v] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Legon A, Wallwork A, Fowler P. Nuclear quadrupole coupling constant in dinitrogen: a determination from the rotational spectrum of N2...HCCH. Chem Phys Lett 1991. [DOI: 10.1016/0009-2614(91)87183-c] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kellö V, Sadlej AJ. Relativistic contributions to molecular electric-field gradients in hydrogen halides. Chem Phys Lett 1990. [DOI: 10.1016/0009-2614(90)85501-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Peterson KA, Mayrhofer RC, Woods RC. Configuration interaction spectroscopic properties of X 2Σ+ HNC+ and X 2Π HCN+. J Chem Phys 1990. [DOI: 10.1063/1.458683] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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45
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Palmer MH. Ab initio calculation of the equilibrium structure, quadrupole coupling and second moments for methyl nitrate and nitric acid. J Mol Struct 1990. [DOI: 10.1016/0022-2860(90)80211-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Sundholm D, Olsen J. Nuclear quadrupole moments of 33S and 35S. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1990; 42:1160-1164. [PMID: 9904140 DOI: 10.1103/physreva.42.1160] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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47
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Legon AC, Wallwork AL, Rego CA. The rotational spectrum and nature of the heterodimer in trimethylammonium bromide vapor. J Chem Phys 1990. [DOI: 10.1063/1.458319] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dingle TW, Huzinaga S, Klobukowski M. Contraction of the well-tempered Gaussian basis sets: The first-row diatomic molecules. J Comput Chem 1989. [DOI: 10.1002/jcc.540100602] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Gerber S, Huber H. Calculations of 14n nuclear quadrupole coupling constants including electron correlation. Chem Phys 1989. [DOI: 10.1016/0301-0104(89)87162-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fowler P, Legon A, Rego C, Tole P. Theoretical and experimental evidence for partial ionic character in the trimethylamine-hydrogen chloride dimer. Chem Phys 1989. [DOI: 10.1016/0301-0104(89)87164-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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