Preparation of copper(I) binap-P2N2 complexes; crystal and molecular structure of [Cu(Binap-P2N2)Br]

Wai Wok Wong, Jing Xing Gao, Wing Tak Wong, Chi Ming Che

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15 Citations (Scopus)

Abstract

The interaction of a racemic mixture of N,N′-bis[o-(diphenylphosphino)benzylidene-2,2′-diimino-1,1′-binaphthyl (Binap-P2N2) (I) with 1 equivalent of Cu(Ph3P)2Br and [Cu(CH3CN)4]PF6in CH2Cl2gave Cu(Binap-P2N2)Br (II) and [Cu(Binap-P2N2)]PF6(III) in 60 and 74% yield, respectively. The structure of II was established by X-ray diffraction and can be described as distorted tetrahedral with the bromide ion and the two phosphino groups and one of the two imino groups of I coordinated to the copper. Variable temperature31P {1H} NMR study of II shows that the coordinated and the uncoordinated imino groups of the tridentate Binap-P2N2ligand undergo a facile intramolecular exchange even at -55°C.
Original languageEnglish
Pages (from-to)2063-2066
Number of pages4
JournalPolyhedron
Volume12
Issue number16
DOIs
Publication statusPublished - 1 Jan 1993
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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