Synthesis and characterization of water-soluble, heteronuclear ruthenium(III)/ferrocene complexes and their interactions with biomolecules
作者:Craig M. Anderson、Swapan S. Jain、Lisa Silber、Kody Chen、Sumedha Guha、Wancong Zhang、Emily C. McLaughlin、Yongfeng Hu、Joseph M. Tanski
DOI:10.1016/j.jinorgbio.2014.12.017
日期:2015.4
The reaction of Na[RuCl4(SO(CH3)(2))(2)], 1, with one equivalent of FcCONHCH(2)C(6)H(4)N (Fc = FeC10H9), L1, FcCOOCH(2)CH(2)C(3)H(3)N(2), L2, FcCOOC(6)H(4)N, L3, afforded the dinuclear species, Na[FcCONHCH(2)C(6)H(4)N [RuCl4(SO(CH3)(2))]], RuL1, Na[FcCOOCH(2)CH(2)C(3)H(3)N(2)[RuCl4(SO(CH3)(2))]], RuL2, Na[FcCOOC(6)H(4)N (RuCl4(SO(CH3)(2)))], RuL3, respectively, yielding, in each case, a ferrocene moiety bridged to a ruthenium center. The complexes were characterized by NMR, IR, and XRD (X-ray diffraction). The sulfoxide ligands are bonded to the metal through the sulfur atom. The complexes were evaluated for their biological activity with pBluescript DNA plasmid, and the protein BSA (bovine serum albumin). These reactions were monitored by XAS (X-ray absorption spectroscopy), EXAFS (extended X-ray Absorption Fine Structure), NMR, UV/visible, emission spectroscopy, and gel electrophoresis. Donor atoms from the biomolecules substitute for the chloride ligands in the parent complexes. (C) 2015 Elsevier Inc. All rights reserved.