利用雷射光解-時域解析-霍氏轉換紅外光譜法研究六羰基金屬 ( 鉻、鉬、鎢 ) 在環己烷溶液中之反應動力學

Abstract

我們利用雷射光解-時域解析-霍氏轉換紅外光譜法研究六羰基金屬 ( 鉻、鉬、鎢 ) 與配位基 ( 丙酮、苯、水 ) 在環己烷溶液中之反應動力學。 由時域解析-紅外吸收光譜中，測定了不穩定分子：M(CO)5S ( S：環己烷 ) 及 M(CO)5L ( L：丙酮、苯、水 )，在紅外光區之吸收位置及 M(CO)5S 與 L 之反應速率常數，其結果並與文獻值相比較。

Tne kinetics of the reactions of M(CO)6 ( M = Cr、Mo、W ) with ligands ( (CH3)2CO、C6H6、H2O ) in cyclohexane were studied using laser photolysis-time-resolved Fourier transform infrared spectroscopy technique. We have assigned the absorption positions of transient species M(CO)5S ( S = cyclo-C6H12 ) and M(CO)5L ( L = (CH3)2CO、C6H6、H2O ) and determined the absolute rate coefficients for the reactions of M(CO)5S with ligands. Our results were compared with previous studies.