Published in

Wiley, Chemistry - A European Journal, 51(20), p. 16781-16781, 2014

DOI: 10.1002/chem.201490210

Wiley, Chemistry - A European Journal, 51(20), p. 16899-16912, 2014

DOI: 10.1002/chem.201404846

Wiley, Chemistry - A European Journal, 51(20), p. 16785-16785, 2014

DOI: 10.1002/chem.201405772

Links

Tools

Export citation

Search in Google Scholar

Platinum Complexes of a Borane-Appended Analogue of 1,1′-Bis(diphenylphosphino)ferrocene: Flexible Borane Coordination Modes and in situ Vinylborane Formation

Journal article published in 2014 by Bradley E. Cowie, David J. H. Emslie
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Orange circle
Postprint: archiving restricted
Red circle
Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

A bis(phosphine)borane ambiphilic ligand, [Fe(η5-C5H4PPh2)(η5-C5H4PtBu{C6H4(BPh2)-ortho})] (FcPPB), in which the borane occupies a terminal position, was prepared. Reaction of FcPPB with tris(norbornene)platinum(0) provided [Pt(FcPPB)] (1) in which the arylborane is η3BCC-coordinated. Subsequent reaction with CO and CNXyl (Xyl=2,6-dimethylphenyl) afforded [PtL(FcPPB)] {L=CO (2) and CNXyl (3)} featuring η2BC- and η1B-arylborane coordination modes, respectively. Reaction of 1 or 2 with H2 yielded [PtH(μ-H)(FcPPB)] in which the borane is bound to a hydride ligand on platinum. Addition of PhC2H to [Pt(FcPPB)] afforded [Pt(C2Ph)(μ-H)(FcPPB)] (5), which rapidly converted to [Pt(FcPPB′)] (6; FcPPB′=[Fe(η5-C5H4PPh2)(η5-C5H4PtBu{C6H4(BPh-CPh=CHPh-Z)-ortho}]) in which the newly formed vinylborane is η3BCC-coordinated. Unlike arylborane complex 1, vinylborane complex 6 does not react with CO, CNXyl, H2 or HC2Ph at room temperature.