78638-55-8Relevant academic research and scientific papers
Indirect metal-metal linkage: Cyclic ferrocene complexes with a second metal linked via remote phosphine functionality
Schore, Neil E.,Benner, Linda S.,LaBelle, Bruce E.
, p. 3200 - 3208 (1981)
The synthesis of the heterodifunctional ligand (C6H5)2PCH2Si(CH3) 2C5H4Li (1) is described, and its utilization as a building block for the preparation of cyclic dinuclear complexes containing dissimilar transition metals is explored. The ferrocene (2) derived from 1 is found to coordinate with Mo(CO)4, Mn(CO)3Br, NiCl2, NiBr2, and Co2(CO)6 fragments through its two phosphine groups. Steric constraints lead exclusively to higher cyclic oligomers in the Mo and Mn complexes and have unusual stereochemical consequences in the Ni systems. The normal chemistry of the Co-Co fragment is unaffected by complexation with diphosphine 2. An evaluation of the suitability of 1 and related ligands for the construction of different types of heterodinuclear complexes is presented.
