期刊
INORGANICA CHIMICA ACTA
卷 359, 期 1, 页码 204-214出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2005.07.046
关键词
gold; phosphine complexes; thiourea complexes; cytotoxicity; anti-microbial activity; supramolecular aggregation
A series of phosphine gold(I) complexes containing monoanionic thiourea ligands has been synthesised by reaction of the appropriate precursor chloro complex, Ph3PAuCl, Cy3PAuCl, dppf(AuCl)(2) [dppf = Fe(eta(5)-C5H4PPh2)(2)] or dppe(AuCI)2 (dppe = Ph2PCH2CH2PPh2) with the thiourea and Me3N base in methanol solution. The complexes have been fully characterised by elemental analysis, NMR spectrometry, electrospray mass spectrometry, and in several cases, by single-crystal X-ray diffraction studies. The crystallographic studies show that the ligands coordinate as a thiolate in each case with systematic variations in geometric parameters being readily ascribed to the influence of the N-bound substituents. In four of the structures, discernable supramolecular aggregation patterns are evident, leading to loosely associated dimers or chain motifs, the latter mediated by either An...S, N-H...N or C-H...O interactions. Cytotoxicity data, against the P388 leukemia cell line, and anti-microbial data are also reported. (c) 2005 Elsevier B.V. All rights reserved.
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