227005-30-3Relevant academic research and scientific papers
New hydrogen-bonded dimeric and polymeric gold(I) complexes of the heterodifunctional ligand Ph2PNHP(O)Ph2
Slawin, Alexandra M.Z.,Smith, Martin B.,Woollins, J. Derek
, p. 1135 - 1140 (1999)
The preparation of several new gold(I) complexes by chloride metathesis of [AuCl(HL)] [HL=Ph2PNHP(O)Ph2] with either HL or K[Ph2P(E)NP(E)Ph2] (E=S or Se) is described. All compounds were characterised by a combination of 31P{1H}, 1H and IR spectroscopy, microanalysis and X-ray crystallography. X-ray structural studies reveal that [Au(HL)2]Cl [monoclinic, space group P21/c, a=9.0726(3) A, b=21.0847(6) A, c=12.0131(3) A, β=105.1090(10)°, V=2219 A3, 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-HCl hydrogen-bonding. In contrast the three-co-ordinate compound [Au{Ph2P(Se)NP(Se)Ph2-Se,Se′}(HL)] [monoclinic, space group P21/a, a=21.6752(5) A, b=9.1200(10) A, c=24.0742(7) A, β=106.080(2)°, V=4573 A3, 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 P21/c, a=10.217(8) A, b=23.256(5) A, c=20.086(5) A, β=101.15(4)°, V=4683 A3, Z=8, final R=5.2. The X-ray crystal structure reveals intermolecular N-HO=P hydrogen-bonding between adjacent [AuCl(HL)] molecules forming infinite chains.
