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Platinum complexes of a boron-rich diphosphine ligand

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Abstract

Herein, we describe the preparation, characterization, and reactivity of two PtII bis-hydrocarbyl complexes containing the 1,2-bis(di(3-dicyclohexylboraneyl)propylphosphino)ethane (P2BCy4) ligand. These scaffolds are readily accessed from four-fold hydroboration of 1,2-bis(diallylphosphino)ethane PtII precursors. The electrophilcity of such frameworks is showcased by facile coordination of the strong Lewis base, 4-N,N-dimethylaminopyridine (DMAP). Thermolysis reactions of [Pt(P2BCy4)(R)2] (R = CH3 or Ph) show enhanced (and divergent) reactivity when compared to their “all-alkyl” diphosphine counterparts, implicating involvement of the pendant borane groups. This behaviour is attenuated by protection of these units with DMAP.

Graphical abstract: Platinum complexes of a boron-rich diphosphine ligand

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Article information


Submitted
13 Mar 2020
Accepted
08 May 2020
First published
08 May 2020

Dalton Trans., 2020, Advance Article
Article type
Paper

Platinum complexes of a boron-rich diphosphine ligand

M. W. Drover, E. G. Bowes, M. C. Dufour and L. A. Lesperance-Nantau, Dalton Trans., 2020, Advance Article , DOI: 10.1039/D0DT00963F

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