diaminopyrene of the ligands H2LP1 and H2LP2. In addition, the introduction of the pyrene motifs in 1 and 2 enhanced their activity toward DNA and as effective antitumor drugs, although the biochemical mechanism of the latter effect is currently under investigation. These complexes represent interesting examples of how to promote an increase in the activity of traditional artificial metal nucleases by
本文中,我们报道了两种双核Fe III Zn II配合物[Fe III Zn II LP1](1)和[Fe III Zn II LP2](2)的合成和表征,其中LP1和LP2是包含一个和两个的共轭体系基分别通过二胺-HN(CH 2)4 NH–间隔基连接至众所周知的N 5 O 2-供体H 2 L
配体(H 2 L = 2-双[((2-
吡啶基甲基)
氨基甲基] -6-[(2-羟基苄基)(2-
吡啶基甲基)]
氨基甲基} -4-甲基
苯酚)。络合物[Fe III Zn为了比较的目的,在本研究中包括II L1](3),其中将H 2 L修饰为H 2 L1,并且在末端
酚基上连接有羰基。1配合物1和2在固态和溶液中均具有令人满意的特性。
乙腈溶液中1和3的扩展X射线吸收精细结构数据表明,以3的固态观察到的多重桥接结构保留在溶液中。1和2的电位和UV-Vis滴定示出了质子化
氨基基团和配位
水分子之间的静电相互作用显著减小在p