Study of the influence of the metal complex on the cytotoxic activity of titanocene-functionalized mesoporous materials

Four different titanocene complexes, [Ti(η5-C5H5)2Cl2] (1), [Ti(η5-C5H5)(η5-C5H4Pri)Cl2] (2), [Ti(η5-C5H5)(η5-C5H4But)Cl2] (3) and [Ti(η5-C5H5){η5-C5H3(SiMe3)2}Cl2] (4), have been grafted onto dehydroxylated MCM-41 to give the novel materials MCM-41/[Ti(η5-C5H5)2Cl2] (S1), MCM-41/[Ti(η5-C5H5)(η5-C5H4Pri)Cl2] (S2), MCM-41/[Ti(η5-C5H5)(η5-C5H4But)Cl2] (S3) and MCM-41/[Ti(η5-C5H5){η5-C5H3(SiMe3)2}Cl2] (S4), which have been characterized by powder...