Small bite-angle diphosphines-Synthesis and structure of low-valent complexes of bis (di-ortho-tolylphosphino) methane (dotpm) and related ligands

M Filby, AJ Deeming, G Hogarth…

Index: Filby, Maria; Deeming, Antony J.; Hogarth, Graeme; Lee, Mo-Yin Canadian Journal of Chemistry, 2006 , vol. 84, # 2 p. 319 - 329

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Citation Number: 18

Abstract

The coordination chemistry of bis (di-ortho-tolylphosphino) methane (dotpm) has been studied. It is an excellent chelating ligand and a range of low-valent mononuclear complexes have been prepared; cis-[M (CO) 4 (η2-dotpm)](M= Cr, Mo, W; 1-3),[CpRuCl (η2- dotpm)](4), and cis-[MX2 (η2-dotpm)](M= Pt, X= Cl, Br, I; 5a-5c, M= Pd, X= Cl; 6). The backbone protons are relatively acidic and can be deprotonated using n-BuLi or LiN ( ...