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Measurement of radiation damping rate constants in nuclear magnetic resonance by inversion recovery and automated compensation of selective pulses
A method is proposed to measure the radiation damping rate constant based on the analysis of the nonexponential recovery of the magnetization after inversion. It is applicable when the recovery is dom...

A quantitative study of non-Condon effects in the S2O C-tilde -->X-tilde emission spectrum

J. Chem. Phys. 112, 6507 (2000); doi:10.1063/1.481314

Issue Date: 15 April 2000

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F. Iachello and F. Pérez-Bernal
Center for Theoretical Physics, Yale University, New Haven, Connecticut 06520-8120

T. Müller and P. H. Vaccaro
Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107
A novel technique has been developed for the quantitative study of vibronically-resolved transition intensities in polyatomic molecules beyond the Condon approximation. Matrix elements of coordinate-dependent transition moment operators are evaluated analytically with the pertinent vibrational wave functions obtained by means of Lie algebraic methods. Experimentally-observed S2O C-tilde 1A[prime]–X-tilde 1A[prime](pi*–pi) emission intensities, in conjunction with previous Franck–Condon calculations, reveal pronounced non-Condon effects for vibronic bands terminating on higher-lying vibrational levels of the ground electronic state. The transition dipole moment is examined as a function of both the S–O and S–S local stretching coordinates. ©2000 American Institute of Physics.
History: Received 17 December 1999; accepted 24 February 2000
Permalink: http://link.aip.org/link/?JCPSA6/112/6507/1
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KEYWORDS and PACS

Keywords
PACS
  • 33.20.Wr
    Molecular properties and interactions with photons Molecular spectra Vibronic, rovibronic, and rotation–electron-spin interactions
  • 33.70.Fd
    Molecular properties and interactions with photons Intensities and shapes of molecular spectral lines and bands Absolute and relative line and band intensities
  • 02.10.Sp
    Mathematical methods in physics Logic, set theory, and algebra Linear and multilinear algebra; matrix theory (finite and infinite)
  • 02.20.Sv
    Mathematical methods in physics Group theory Lie algebras of Lie groups
  • YEAR: 2000

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ISSN:
0021-9606 (print)   1089-7690 (online)
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