New alicyclic thiosemicarbazone chelated zinc(II) antitumor complexes: Interactions with DNA/protein, nuclease activity and inhibition of topoisomerase-I
Abstract Two new zinc(II) complexes, Zn(chtsc-N-Me)2 and Zn(chtsc-N-Ph)2 where chtsc = cyclohexanone thiosemicarbazone; chtsc-N-Ph = cyclohexanone N(4)-phenyl thiosemicarbazone, were isolated and characterized by X-ray crystallography. The interaction of these complexes with DNA and protein were studied using calf thymus DNA (CT-DNA) and bovine serum albumin (BSA) as the respective models, and marked