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Gold(I) Complexes of the Geminal Phosphinoborane

Gold(I) Complexes of the Geminal Phosphinoborane

Devin H A Boom, Andreas W Ehlers, Martin Nieger, Marc Devillard, Ghenwa Bouhadir, Didier Bourissou, J Chris Slootweg

ACS Omega. 2018 Apr 30;3(4):3945-3951.

PMID: 29732451

Abstract:

In this work, we explored the coordination properties of the geminal phosphinoborane tBu2PCH2BPh2 (2) toward different gold(I) precursors. The reaction of 2 with an equimolar amount of the sulfur-based complex (Me2S)AuCl resulted in displacement of the SMe2 ligand and formation of linear phosphine gold(I) chloride 3. Using an excess of ligand 2, bisligated complex 4 was formed and showed dynamic behavior at room temperature. Changing the gold(I) metal precursor to the phosphorus-based complex, (Ph3P)AuCl impacted the coordination behavior of ligand 2. Namely, the reaction of ligand 2 with (Ph3P)AuCl led to the heterolytic cleavage of the gold-chloride bond, which is favored over PPh3 ligand displacement. To the best of our knowledge, 2 is the first example of a P/B-ambiphilic ligand capable of cleaving the gold-chloride bond. The coordination chemistry of 2 was further analyzed by density functional theory calculations.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP10294298	Gold(I) chloride		10294-29-8	Price

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