The results are presented of a photochemical study of the complexes Fe(CO)3(i-Pr2Ph-DAB) and Ru(CO)3(i-Pr2CH-DAB) and of some of their PR3-containing derivatives. The reactions were studied by flash-photolysis with 308 nm laser light and by irradiation at various temperatures and exciting wavelengths. Both tricarbonyls show release of CO from the 3LF state but no reaction from the 3ML state of the
结果是对复合物Fe(CO)3(i-Pr 2 Ph-
DAB)和Ru(CO)3(i-Pr 2 CH-
DAB)及其某些含PR 3的衍
生物进行光
化学研究的结果。通过用308 nm激光进行快速光解以及通过在各种温度和激发波长下进行辐照来研究反应。两种三羰基化合物均以较低的能量从
金属的R-
DAB
金属环的3 LF态释放出CO,但没有从3 ML态释放出反应。相反,Fe(CO)2(i-Pr 2 Ph-
DAB)(P(OPh)3)从3处于LF状态,但此反应后会发生快速的逆反应,以再生母体化合物。其结果是只从一个反应3 ML状态中观察到,其中第i-PR 2 PH-
DAB
配体改变其协调从σ,σ-N,N'成η 4 -CN,C'N'。对于配合物Ru(CO)2(i-Pr 2 CH-
DAB)(PR 3),从3 LF状态破坏
金属键会导致i-Pr 2 CH-
DAB
配体的释放和Ru的形成(CO)2(PR 3)3和Ru(CO)3(PR