Abstract
The utility of the fac-[RuH3(PR3)3]- anion (R = Ph, C6H4-4-Me) for the preparation of new oligonuclear transition metal polyhydrides has been examined. The lithium salts [Li(thf)x{Ru(-H)3(PPh3)3}] {1: R = Ph, x = 3; 1: R = C6H4-4-Me (Tol), x = 2.5} react with [Cp*RuCl]4 (Cp* = C5Me5), ZnCl2, and CuCl(SMe2) to form new oligonuclear polyhydrido complexes. The compounds [Cp*Ru(-H)3Ru(PR3)3] (2: R = ...
Abstract
The utility of the fac-[RuH3(PR3)3]- anion (R = Ph, C6H4-4-Me) for the preparation of new oligonuclear transition metal polyhydrides has been examined. The lithium salts [Li(thf)x{Ru(-H)3(PPh3)3}] {1: R = Ph, x = 3; 1: R = C6H4-4-Me (Tol), x = 2.5} react with [Cp*RuCl]4 (Cp* = C5Me5), ZnCl2, and CuCl(SMe2) to form new oligonuclear polyhydrido complexes. The compounds [Cp*Ru(-H)3Ru(PR3)3] (2: R = Ph, 2: R = Tol), [Zn{Ru(-H)3(PPh3)3}2] (3), and [Cu2{Ru(-H)3(PPh3)3}2] (4) were synthesized and characterized by multinuclear NMR and IR spectroscopy, and microanalysis. The molecular structures were determined by X-ray crystallography. Density functional theory calculations at the PBE-D3/def2-TZVP level support the proposed structures of the new polyhydride complexes. The impact of intramolecular London dispersion interactions on the optimized geometries is discussed.
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