188561-08-2Relevant academic research and scientific papers
Reactions of {[Pd(μ-SC6F5)(μ-dppm)Pd](μ-SC6F 5)}4·2O(C2H5)2. Crystal Structures of the Complexes [(Ph3P)Pd(μ-SC6F5)(μ-dppm)Pd(SC 6F5)]·1.4CH2Cl2
Usón, Rafael,Forniés, Juan,Sanz, Javier Fernández,Usón, Miguel A.,Usón, Isabel,Herrero, Santiago
, p. 1912 - 1922 (1997)
{[Pd(μ-SC6F5)(μ-dppm)Pd](μ-SC 6F5)}4 reacts 1:4 with neutral ligands L to give [LPd(μ-SC6F5)(μ-dppm)Pd(SC6F 5)] or 1:8 to form [LPd(μ-SC6F5)(μ-dppm)PdL]+ (dppm = bis(diphenylphosphino)methane). These binuclear complexes retain the palladium-palladium bond and the two dissimilar bridging ligands, as demonstrated by the X-ray structural determinations carried out on [(Ph3P)Pd(μ-SC6F5)(μ-dppm)Pd(SC 6F5)]·1.4CH2Cl2 and [(Ph3P)Pd(μ-SC6F5)(μ-dppm)Pd(PPh 3)]SO3CF3·2CH2Cl2. Ab initio calculations on the model systems [(H3P)Pd(μ-H2PCH2-PH 2)(μ-SH)Pd(PH3)]+ and [(H3P)Pd(μ-H2PCH2PH2)Pd(PH 3)]2+ show that the metal-metal bond arises mainly from interactions between palladium sp orbitals, which also play a predominant role in the binding with the sulfur bridge.
