A theoretical determination of the radiative lifetimes of the A 2Σ+ and B 2Δ states of CF

作者: Alistair P. Rendell , Charles W. Bauschlicher , Stephen R. Langhoff

DOI: 10.1016/0009-2614(89)85149-8

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摘要: Abstract The potential curves for the X 2 Π, A Σ + and B Δ states of CF molecule have been determined using large Gaussian basis sets accounting electron correlation with CASSCF/multireference CI method. transition moment function between Π state is found to undergo a dramatic change at 2.6 0 where an avoided crossing higher lying causes significant in character wave function. Both are calculated be metastable species dissociating C( 3 P) F( P). For both radiative lifetime unimolecular decay tunneling through barrier computed.

参考文章(17)
J. A. Harrington, A. P. Modica, D. R. Libby, Shock‐Tube Determination of the C2(A3Π→X3Π) and CF(A2Σ+→X2Π) Band‐System Oscillator Strengths Journal of Chemical Physics. ,vol. 44, pp. 3380- 3387 ,(1966) , 10.1063/1.1727241
Charles W. Bauschlicher, Stephen R. Langhoff, Theoretical determination of the radiative lifetime of theA 2Σ+state of OH The Journal of Chemical Physics. ,vol. 87, pp. 4665- 4672 ,(1987) , 10.1063/1.452829
James E. Hesser, Kurt Dressler, Radiative Lifetimes of Ultraviolet Molecular Transitions The Journal of Chemical Physics. ,vol. 45, pp. 3149- 3150 ,(1966) , 10.1063/1.1728073
Jan Almlöf, Peter R. Taylor, General contraction of Gaussian basis sets. I. Atomic natural orbitals for first- and second-row atoms Journal of Chemical Physics. ,vol. 86, pp. 4070- 4077 ,(1987) , 10.1063/1.451917
Tunis Wentink, Louis Isaacson, Oscillator Strengths of CF and Comments on Heats of Formation of CF and CF2 The Journal of Chemical Physics. ,vol. 46, pp. 603- 605 ,(1967) , 10.1063/1.1840710
Charles W. Bauschlicher, Peter R. Taylor, Symmetry and equivalence restrictions in electronic structure calculations Theoretical Chemistry Accounts. ,vol. 74, pp. 63- 73 ,(1988) , 10.1007/BF00570553
A. Carrington, B.J. Howard, Gas-phase electron resonance spectrum and dipole moment of CF Molecular Physics. ,vol. 18, pp. 225- 231 ,(1970) , 10.1080/00268977000100241
H.A. van Sprang, H.H. Brongersma, F.J. de Heer, Electron impact induced light emission from CF4, CF3H, CF3Cl, CF2Cl2 and CFCl3 Chemical Physics. ,vol. 35, pp. 51- 61 ,(1978) , 10.1016/0301-0104(78)85191-X
James E. Hesser, Absolute transition probabilities in ultraviolet molecular spectra. Journal of Chemical Physics. ,vol. 48, pp. 2518- 2535 ,(1968) , 10.1063/1.1669477