251447-01-5Relevant academic research and scientific papers
Synthesis, structure and thermal rearrangement of tetramethyldisilane-bridged bis(cyclopentadienyl) diiron complexes with a phosphite or phosphine ligand substitution
Xie, Wen-Hua,Wang, Bai-Quan,Xu, Shan-Sheng,Zhou, Xiu-Zhong,Cheung, Kung-Kai
, p. 2645 - 2650 (2008/10/09)
Photolysis of tetramethyldisilane-bridged bis(cyclopentadienyl) tetracarbonyl di-iron in the presence of phosphite or phosphine ligand afforded the corresponding Fe-Fe bond complexes with one carbonyl replaced by a phosphite or phosphine ligand: [(Me2SiSiMe2)Cp2Fe2(CO)(PR 3)(μ-CO)2] (R=OPh, 1; OEt, 2; Ph, 3). When these complexes were heated in refluxing xylene, they become rearranged to the corresponding products [(Me2SiCpFe)2(CO)3(PR3)] (R=OPh, 4; OEt, 5; Ph, 6). It was found that, after phosphite or phosphine ligand substitution, the rearrangement became facile. The molecular structures of 1-6 were characterized by IR, 1H NMR spectra and elemental analyses. The crystal structures of 1 and 4 were determined by X-ray diffraction analysis. Elsevier Science Ltd.
