title: Transition metal complexes of phenanthrenequinone thiosemicarbazone as potential anticancer agents: synthesis, structure, spectroscopy, electrochemistry and in vitro anticancer activity against human breast cancer cell-line, T47D.
abstract: The thiosemicarbazone derivative of 9,10-phenanthrenequinone, 1, and its metal complexes were synthesized. The X-ray crystal structure for 1 confirms the presence of the E tautomeric arrangement in this compound. Its copper complex shows 1:1 stoichiometry while nickel and cobalt compounds show 1:2 stoichiometry. The X-ray crystal structure of the nickel complex indicates two tridentate ligands coordinating in the thiolato form yielding an octahedral geometry for the 'mer' isomer. The copper complex exhibits maximum antiproliferative activity against human breast cancer cell-line, T47D probably due to inhibition of steroid binding to the cognitive receptor or by preventing dimerization of the estrogen receptor.
authors.affiliation: Department of Chemistry, University of Missouri-Rolla, Rolla, MO 665409, USA.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Afrasiabi
authors.forename: Ekk
authors.initials: E
authors.lastname: Sinn
authors.forename: Shreelekha
authors.initials: S
authors.lastname: Padhye
authors.forename: Sabari
authors.initials: S
authors.lastname: Dutta
authors.forename: Subhash
authors.initials: S
authors.lastname: Padhye
authors.forename: Chris
authors.initials: C
authors.lastname: Newton
authors.forename: Christopher E
authors.initials: CE
authors.lastname: Anson
authors.forename: Annie K
authors.initials: AK
authors.lastname: Powell
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001943:Breast Neoplasms / Q000473:pathology*; D002455:Cell Division / Q000187:drug effects; D045744:Cell Line, Tumor; D018360:Crystallography, X-Ray; D004563:Electrochemistry; D006801:Humans; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D008280:Magnetics; D008670:Metals / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D010616:Phenanthrenes / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013057:Spectrum Analysis; D013882:Thiosemicarbazones / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D008670:Metals; D010616:Phenanthrenes; D013882:Thiosemicarbazones; C479020:phenanthrenequinone thiosemicarbazone; C005399:9,10-phenanthrenequinone