182953-33-9Relevant academic research and scientific papers
Organopolysilane oligomers bearing transition-metal moieties: Synthesis, reactivities and molecular structure of [η5-me3sime2sic5h 4(co)fe(co)2fe(co)-η5-c5h 4sime2sime3]
Sun, Huailin,Zhou, Xiuzhong,Yao, Xinkan,Wang, Honggen
, p. 4489 - 4495 (1996)
Reaction of Me3SiMe2SiC5H5 (4), prepared from Me3SiMe2SiCl and C5H5Na, with Fe(CO)5 in refluxing xylene afforded the title compound (3). The silicon-silicon bond in 3 is exceptionally stable in refluxing xylene and also in succeeding reactions to prepare a series of its derivatives. Thus, 3 reacted with I2 in either chloroform or benzene, giving [η5-Me3SiMe2SiC5H 4Fe(CO)2I] (6). Compound 3 was reduced by sodium amalgam and reacted subsequently with CH3I, PhCH2Cl, CH3COCl, PhCOCl, Cy3SnCl (Cy = cyclohexyl) and Ph3SnCl, producing [η5-Me3SiMe2SiC5H 4Fe(CO)2R] [7 : R = CH3 (a), PhCH2 (b), CH3CO (c), PhCO (d), Cy3Sn (e) and Ph3Sn (f), respectively]. The molecular structure of 3 has been determined by X-ray diffraction crystallography. It was found that 3 has a transconfiguration with a symmetrical centre located at the middle of the Fe - Fe bond. It is abnormal that the conformation of the disilane part around the Si - Si bond is almost eclipsed rather than staggered. Copyright
