New hydrogen-bonded dimeric and polymeric gold(I) complexes of the heterodifunctional ligand Ph2PNHP(O)Ph-2

A M Z Slawin, M B Smith, J D Woollins

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19 Citations (Scopus)

Abstract

The preparation of several new gold(I) complexes by chloride metathesis of [AuCl(HL)] [HL=Ph2PNHP(O)Ph-2] with either HL or K[Ph2P(E)NP(E)Ph-2] (E=S or Se) is described. All compounds were characterised by a combination of P-31{H-1}, H-1 and IR spectroscopy, microanalysis and X-ray crystallography. X-ray structural studies reveal that [Au(HL)(2)]Cl [monoclinic, space group P2(1)/c, a=9.0726(3) Angstrom, b=21.0847(6) Angstrom, c=12.0131(3) Angstrom, beta=105.1090(10)degrees, V=2219 Angstrom(3), Z=2, final R=3.97] forms a one dimensional polymeric structure in which alternating [Au(HL)(2)](+) and Cl- ions are linked through intermolecular N-K ... Cl hydrogen-bonding. In contrast the three-co-ordinate compound [Au{Ph2P(Se)NP(Se)Ph-2-Se,Se'}(HL)] [monoclinic, space group P2(1)/a, a=21.6752(5) Angstrom, b=9.1200(10) Angstrom, c=24.0742(7) Angstrom, beta=106.080(2)degrees, V=4573 Angstrom(3), Z=4, final R=8.94] forms hydrogen-bonded dimer pairs analogous to that previously observed in non-complexed HL. The X-ray crystal structure of the gold(I) precursor [AuCl(HL)] has also been determined: monoclinic, space group P2(1)/c, a=10.217(8) Angstrom, b =23.256(5) Angstrom, c=20.086(5) Angstrom, beta = 101.15(4)degrees, V=4683 Angstrom(3), Z=8, final R=5.2. The X-ray crystal structure reveals intermolecular N-H ... O=P hydrogen-bonding between adjacent [AuCl(HL)] molecules forming infinite chains. (C) 1999 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1135-1140
Number of pages6
JournalPolyhedron
Volume18
Issue number8-9
DOIs
Publication statusPublished - 1999

Keywords

  • gold(I) complexes
  • chloride metathesis
  • X-ray crystallography
  • heterodifunctional ligands
  • MOLECULAR-STRUCTURE
  • COORDINATION CHEMISTRY
  • METAL-COMPLEXES
  • CRYSTAL
  • PH(2)PNHP(O)PH(2)
  • SE
  • ACID

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