252256-58-9Relevant academic research and scientific papers
Bis[1,3-bis(diphenylmethylsilylamido)propane]zirconium: A spirocyclic complex containing a sterically demanding chelating amido ligand
Garcia-Yuste, Santiago,Hellmann, Konrad W.,Gade, Lutz H.,Scowen, Ian J.,McPartlin, Mary
, p. 1260 - 1264 (1999)
Lithiation of the diamine CH2(CH2NHSiMePh2)2 using n-butyl lithium and subsequent reaction with zirconium tetrachloride yielded the bis(chelate)-amidozirconium complex [Zr{CH2(CH2NSiMePh2)2}2]. The spirocyclic molecule has a distorted tetrahedral coordination at the zirconium centre with overall C2 symmetry broken only by the relative orientation of four phenyl rings. The bulky diphenylmethylsilyl substituents at the amido-N functions as well as the ligand backbone sterically protect the metal centre and render it inert towards conproportionation with zirconium chloride.
