Synthesis, X-ray structures, spectroscopic analysis and anticancer activity of novel gold(I) carbene complexes

Muhammad Altaf, M. Monim-Ul-Mehboob, Adam A.A. Seliman, Anvarhusein A. Isab*, Vikram Dhuna, Gaurav Bhatia, Kshitija Dhuna

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Three new linear gold(I) complexes of the formulas [(Ipr)Au(S 2CN(CH3)2)] (1), [(Ipr)Au (S 2CN(C2H5)2)] (2) and [(Ipr)Au(S 2CN(C7H7)2)] (3) [where Ipr = 1,3-bis(2,6-di-isopropylphenyl)imidazol-2-ylidenegold] have been prepared by the reaction of equimolar amounts of 1,3-bis(2,6-di-isopropylphenyl)imidazol-2- ylidenegold(I)chloride, [(Ipr)Au(Cl)] with sodium dimethyldithiocarbamate monohydrate, sodium diethyl dithiocarbamatetrihydrate and dibenzyl dithiocarbamate, respectively. The structures of the complexes have been determined by single X-ray crystallography. All gold(I) complexes (1-3) are iso-structural i.e. linear geometry. The complex (1) crystallizes in monoclinic space group 'P21/a', while the complexes (2) and (3) crystallize in orthorhombic space group 'Pna21'. The IR spectra and 1H as well as 13C NMR measurements of the Au(I) complexes (1-3) corroborate well with their single crystal X-ray structure analysis. These gold(I) complexes show moderate potential anti-cancer activities against A549 (human lung carcinoma), HCT15 (human colon cancer), and HeLa (human cervical cancer) cell lines.

Original languageEnglish
Pages (from-to)68-79
Number of pages12
JournalJournal of Organometallic Chemistry
Volume765
DOIs
StatePublished - 15 Aug 2014

Bibliographical note

Funding Information:
The author(s) would like to acknowledge the support provided by King Abdulaziz City for Science and Technology (KACST) through the Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project No. 11-MED1670-04 as part of the National Science, Technology and Innovation Plan.

Keywords

  • 1,3-Bis(2,6-di-isopropylphenyl)imidazol-2-ylidenegold
  • Dithiocarbamate gold(I) complexes
  • IR and NMR spectroscopic studies
  • In vitro cytotoxicity

ASJC Scopus subject areas

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

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