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期刊论文
A-band resonance Raman spectra of 1,2-diiodoethane in cyclohexane solution. Substituent effects on the 1-halo-2-iodoethane short-time photodissociation dynamics
Chemical Physics Letters 292 1998. 295~306,-0001,():
Resonance Raman spectra of 1,2-diiodoethane in cyclohexane solution have been obtained in the A-band absorption. A resonance Raman intensity analysis was done to examine the short-time photodissociation dynamics of 1, 2-diiodoethane. Significant bond length and bond angle changes were found for both C-I bonds and the C-C bond as well as the CCI and HCH bond angles. Comparison of the Franck–Condon region dynamics of 1,2-diiodoethane with diiodomethane suggests that the degree of coupling of the two C-I chromophores depends on both the relative geometry of the C-I bonds and their relative separation.
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