Mononuclear half-sandwich cyclic-π-perimeter platinum group metal complexes having bithiazole ligands: Synthesis, molecular and anti-cancer studies

Mahesh Kalidasan, Scott Forbes, Yurij Mozharivskyj, Maryam Ahmadi, Zeynab Ahmadihosseini, Roger M. Phillips, Mohan Rao Kollipara

Research output: Contribution to journalArticle

9 Citations (Scopus)


Mononuclear cationic half-sandwich arene Ru(II) and Cp *Rh(III)/Cp*Ir(III) compounds with the general formula [(η6-arene)Ru(L)Cl]+ and [Cp *M(L)Cl]+ have been isolated by the reaction of bithiazole ligands {2,2′-dimethyl-4,4′-bithiazole (dm4bt), 2,2′-diamino-4,4′-bithiazole (da4bt), and 2,2′-diphenyl-4, 4′-bithiazole (dp4bt)} with the precursor compounds [(η6- arene)Ru(μ-Cl)Cl]2 (arene = C6H6, p- iPrC6H4Me or C6Me6) and [Cp*M(μ-Cl)Cl]2 (M = Rh, Ir). These compounds were isolated as SbF6 salts and fully characterized by spectral studies. Some representative compounds were confirmed by single crystal X-ray crystallographic studies. Chemo-sensitivity activities of compounds 1, 5, 11, 12, 14 and 15 were evaluated against two human breast carcinoma cell lines (MDA-MB-231 and T47D). There is a clear SAR seen, where the iridium-based complexes with the dp4bt ligand are much more potent than the ruthenium and rhodium complexes.

Original languageEnglish
Pages (from-to)349-358
Number of pages10
JournalInorganica Chimica Acta
Early online date3 Jul 2014
Publication statusPublished - 1 Sep 2014
Externally publishedYes


Cite this