Ruthenium Hydride Complexes of the Hindered Phosphine Ligand Tris(3-diisopropylphosphinopropyl)phosphine

2011/06/01 by Mohan Bhadbhade, Mohan M. Bhadbhade, Leslie D. Field +6 · 2 citations
Chemistry · Medicine · #Organometallic Complex Synthesis and Catalysis #Asymmetric Hydrogenation and Catalysis #Metal complexes synthesis and properties

paper · doi:10.1021/ic200492w

Abstract

The synthesis and characterization of the novel hindered tripodal phosphine ligand P(CH(2)CH(2)CH(2)P(i)Pr(2))(3) (P(3)P(3)(iPr)) (1) are reported, along with the synthesis and characterization of ruthenium chloro and hydrido complexes of 1. Complexes [RuCl(P(3)P(3)(i)Pr)][BPh(4)] (2[BPh(4)]), RuH(2)(P(3)P(3)(i)Pr) (3), and [Ru(H(2))(H)(P(3)P(3)(iPr))][BPh(4)] (4[BPh(4)]) were characterized by crystallography. Complex 2 is fluxional in solution, and low-temperature NMR spectroscopy of the complex correlates well with two dynamic processes, an exchange between stereoisomers and a faster turnstile-type exchange within one of the stereoisomers.

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• Base-Induced Dehydrogenation of Ruthenium Hydrazine Complexes
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