Resonance Raman investigation of the short-time photodissociation dynamics of the charge-transfer absorption of the I2-benzene complex in benzene solution

Ke-Feng Weng; Yan Shi; Xuming Zheng; David Lee Phillips

doi:10.1021/jp055069d

Resonance Raman investigation of the short-time photodissociation dynamics of the charge-transfer absorption of the I2-benzene complex in benzene solution

J Phys Chem A. 2006 Jan 26;110(3):851-60. doi: 10.1021/jp055069d.

Authors

Ke-Feng Weng¹, Yan Shi, Xuming Zheng, David Lee Phillips

Affiliation

¹ Department of Applied Chemistry, Zhejiang Sci-Tech University, Second Road, Xia Sha Gao Jiao Yuan Qu Hangzhou 310033, P. R. China.

PMID: 16419981
DOI: 10.1021/jp055069d

Abstract

Resonance Raman spectra were obtained for the I2-benzene complex in benzene solvent with excitation wavelengths in resonance with the CT-band absorption. These spectra indicate that the Franck-Condon region photodissociation dynamics have multidimensional character with motion mainly along the nominal I-I stretch mode nu(18), the nominal symmetric benzene ring stretch mode nu5, and the nominal symmetric CCH bending nu7. There is also a small contribution from the nominal out-of-plane CH oop wag nu15. A preliminary resonance Raman intensity analysis was done, and the results for the I2-benzene complex were compared to results previously reported for the 1-hexene-I2 complex. We briefly discuss the differences and similarities in the CT-band absorption excitation of an I2-benzene complex relative to those of an I2-alkene complex.