Mechanistic Study on the Photochemical Conversion of Disilanyliron(II) Complexes to Monosilyliron(II) Complexes
Mechanistic Study on the Photochemical Conversion of Disilanyliron(II) Complexes to Monosilyliron(II) Complexes
复制标题
DOI：
10.1246/bcsj.61.2797
复制
发表时间：
1988-08
影响因子：
4
通讯作者：
H. Tobita;K. Ueno;H. Ogino
中科院分区：
文献类型：
--
作者：
H. Tobita;K. Ueno;H. Ogino
Photolysis of a C6D6 solution of CpFe(CO)2SiMe2SiMe3 (Cp=η5-C5H5) or (MeCp)Fe(CO)2SiMe2SiMe3 (MeCp=η5-C5H4Me) resulted in the formation of monosilyl derivative, CpFe(CO)2SiMe3 or (MeCp)Fe(CO)2SiMe3 in 64 or 59% yield, respectively, together with small quantities of ferrocene and Cp2Fe2(CO)4 or their methylated derivatives. The yield of CpFe(CO)2SiMe3 increased to 88% when the photolysis was carried out under a carbon monoxide atmosphere, while decreased to 22% when argon was vigorously bubbled through the reaction mixture. These results are consistent with a mechanism involving dissociation and recombination of a carbonyl ligand which are common processes in photoreactions of transition-metal carbonyl derivatives. Dimethylsilylene moiety released during the photolysis was tried to be trapped with a hydrosilane, diene, and cyclotrisiloxane, but none of the expected products from the trapping reactions was detected, even in a trace amount. Photolysis of CpFe(CO)2SiMe2SiMeEt2 afforded, accompanying alkyl mig...
