Ti
<sup>IV</sup>
Complexes of Branched Diamine Bis(phenolato) Ligands: Hydrolysis and Cytotoxicity
作者:Dani Peri、Cesar M. Manna、Michal Shavit、Edit Y. Tshuva
DOI:10.1002/ejic.201100725
日期:2011.11
TiIV complexes of branched diamine bis(phenolato) ligands that feature a pendant donor side arm with different aromatic and N-substitutions were synthesized and their hydrolytic stability and cytotoxicity were investigated as closely related analogues to the highly active and stable salan TiIV complexes [salan = N,N′-bis(o-hydroxybenzyl)-1,2-diaminoethane]. Although the Cs-symmetrical complexes include
合成了六种支链二胺双(苯酚)配体的 TiIV 配合物,这些配合物具有一个带有不同芳香族和 N-取代基的悬垂供体侧臂,并研究了它们的水解稳定性和细胞毒性,作为与高活性和稳定的 Salan TiIV 配合物密切相关的类似物 [salan = N,N'-双(邻羟基苄基)-1,2-二氨基乙烷]。尽管 Cs 对称配合物包括侧臂 N 供体与金属的结合,如晶体学分析,因此使它们在配位特征上与 C2 对称 Salan 配合物高度相似,但它们表现出较差的水解稳定性,可能是由于在侧臂在溶液中的结合。N-甲基化和 N-乙基化的烷基芳族取代基复合物,具有不同的空间限制,表现出较差的细胞毒性。相比之下,