Department of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo, 192-0397, Japan.
Dalton Trans. 2018 Sep 11;47(35):12046-12050. doi: 10.1039/c8dt00998h.
New di- and trinuclear iridium (Ir) penta- and hexahydride complexes containing light-absorbing diphosphine ligands have been developed. The trinuclear Ir complex possessed a higher absorption coefficient (standardized per Ir) than that of the parent mononuclear Ir complex, indicating the assembly effect. The trinuclear complex showed high reactivity toward catalytic hydrogenation of diphenylacetylene under mild conditions, and the reaction was considerably accelerated under photoirradiation.
新型二核和三核铱(Ir)五氢和六氢配合物,含有吸光双膦配体,已被开发出来。三核 Ir 配合物的吸收系数(每 Ir 标准化)高于母体单核 Ir 配合物,表明存在组装效应。该三核配合物在温和条件下对二苯基乙炔的催化加氢反应具有很高的反应活性,在光照下反应明显加速。