Issue 11, 1979

Metallaborane chemistry. Part 9. Oxidative–insertion reactions of zerovalent nickel and platinum complexes with 1,7-dicarba-closo-octaborane, 4,5-dicarba-closo-nonaborane, 1,6-dicarba-closo-decaborane, and their C- methyl derivatives

Abstract

The complexes [Pt(PEt3)3], [Pt(trans-stilbene)(PR′3)2](R′= Et or Me), [M(cod)(PMe3)2](M = Pt or Ni; cod = cyclo-octa-1,5-diene), and [Ni(cod)(PEt3)2] react with closo-1,7-R2-1,7-C2B6H6(R = H or Me), closo-4,5-R2-4,5-C2B7H7, and closo-1,6-C2B8H10 to give the carbametallaboranes closo-[4,5-R2-6,6-(PR′3)-4,5,6-C2MB6H6](M = Pt, R = H, R′= Me; M = Pt, R = Me, R′= Me or Et; M = Ni, R = Me, R′= Me or Et), nido-[4,5-R2-7,7-(PR′3)-4,5,7-C2PtB6H6](R = H, R′= Me, and R = Me, R′= Et), nido-[2,8-R2-10,10-(PR′3)-2,8,10-C2MB7H7](M = Pt, R′= Et, R = H or Me; M = Ni, R = H, R′= Et, and R = Me, R′= Me), and nido-[µ-(6,10)-{ Pt(PMe3)2}-10,10-(PMe3)2-7,9,10-C2PtB8H10], respectively. The latter compound, on reaction with activated charcoal, afforded the compound nido-[10,10-(PMe3)2-7,9,10-C2PtB8H10]. The 1H, 11B, and 31P n.m.r. spectra of the new compounds are reported, and their mechanism of formation and molecular structures discussed.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1979, 1679-1686

Metallaborane chemistry. Part 9. Oxidative–insertion reactions of zerovalent nickel and platinum complexes with 1,7-dicarba-closo-octaborane, 4,5-dicarba-closo-nonaborane, 1,6-dicarba-closo-decaborane, and their C- methyl derivatives

M. Green, J. L. Spencer and F. G. A. Stone, J. Chem. Soc., Dalton Trans., 1979, 1679 DOI: 10.1039/DT9790001679

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