Next Generation PhotoCORMs: Polynuclear Tricarbonylmanganese(I)-Functionalized Polypyridyl Metallodendrimers
作者:Preshendren Govender、Sandesh Pai、Ulrich Schatzschneider、Gregory S. Smith
DOI:10.1021/ic400377k
日期:2013.5.6
and UV/vis spectroscopy) methods. The CO-release properties of these compounds were investigated in pure buffer and using the myoglobinassay. Both metallodendrimer generations are stable in the dark in aqueous buffer for up to 16 h but show photoactivated COrelease upon excitation at 410 nm, representing a novel class of macromolecular photoactivatable CO-releasing molecules (PhotoCORMs). No scaling
第一款基于Mn(CO)3部分官能化的吡啶基树枝状支架的CO释放金属树枝状聚合物,其通式为[DAB-PPI- MnBr(bpy CH3,CH═N)(CO)3 } n ],其中DAB合成并通过分析(HR-ESI质谱和元素分析)全面表征= 1,4-二氨基丁烷,PPI =聚亚丙基亚胺,bpy =联吡啶,对于第一代树状聚合物,n = 4或对于第二代树状聚合物,n = 8分析)和光谱(1 H,13 C 11 H-NMR,红外和UV /可见光谱)方法。在纯缓冲液中和使用肌红蛋白测定法研究了这些化合物的CO释放特性。两种金属树枝状大分子均在黑暗中在水性缓冲液中稳定长达16小时,但在410 nm激发后显示出光活化的CO释放,代表了一类新的大分子可光活化的CO释放分子(PhotoCORM)。由于两种金属树枝状大分子释放的每分子CO配体总数的约65%,而与世代数无关,因此未观察到结垢效应。此外,单核模型配合物[MnBr(bpy