Platinum complexes of a boron-rich diphosphine ligand. Issue 45 (20th May 2020)

• Record Type: Journal Article
• Authors: Drover, Marcus W.; Bowes, Eric G.; Dufour, Maeve C.; Lesperance-Nantau, Lindsay A.
• Is Part Of: Dalton transactions. Volume 49:Issue 45(2020)
• Page Start: 16312
• Page End: 16318
• Publication Date: 2020-05-20
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d0dt00963f
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Herein, we describe the preparation, characterization, and reactivity of two Pt II bis-hydrocarbyl complexes containing the 1, 2-bis(di(3-dicyclohexylboraneyl)propylphosphino)ethane (P2 B Cy 4 ) ligand. Abstract : Herein, we describe the preparation, characterization, and reactivity of two Pt II bis-hydrocarbyl complexes containing the 1, 2-bis(di(3-dicyclohexylboraneyl)propylphosphino)ethane (P2 B Cy 4 ) ligand. These scaffolds are readily accessed from four-fold hydroboration of 1, 2-bis(diallylphosphino)ethane Pt II 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(P2 B Cy 4 )(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.