METAL-CARBONYL PHOTOCHEMISTRY IN ORGANIC-SOLVENTS - FEMTOSECOND TRANSIENT ABSORPTION AND PRELIMINARY RESONANCE RAMAN-SPECTROSCOPY

被引：130
作者：
JOLY, AG
NELSON, KA
机构：
[1] Department of Chemistry, Massachusetts Institute of Technology, Cambridge
来源：
CHEMICAL PHYSICS | 1991年 / 152卷 / 1-2期
关键词：
D O I：
10.1016/0301-0104(91)80035-G
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Solvent effects in elementary chemical reactions are studied using femtosecond transient absorption spectroscopy. Photodissociation of M(CO)6 (M = Cr, Mo, or W) is examined in a variety of linear chain alcohols to ascertain the role of the solvent on the initial CO dissociation event. Reasonance Raman experiments are also used to obtain more information about the reaction coordinate for CO dissociation. No significant solvent effects are seen on the short time (approximately 350 fs) transient absorption signal assigned to CO dissociation; however, effects are seen on an intermediate timescale attributed to differences in solvent complexation dynamics. Subsequent vibrational cooling of the nascent Cr(CO)5(SOLVENT) complex is observed consistent with earlier results.
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页码：69 / 82
页数：14
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