A New Type of Dendritic [60]Fullerene–Metallo-tetraphenylporphyrin Diads (M = Zn, Co)
作者:Christian Kovacs、Andreas Hirsch
DOI:10.1002/ejoc.200600259
日期:2006.8
19–23 terminated by a metallo-tetraphenylporphyrin (M = ZnII, CoII, CoIII) and by Newkome-type amide dendrons of generation two and three is reported. Cyclopropanation of C60 with the second-generation dendrons 20 and 21 leads to the formation of fullerene monoadducts 24 and 25, representing a new type of dendritic diads. The establishment of Co in the oxidation sates of +II and +III was achieved by
报道了由金属四苯基卟啉(M = ZnII、CoII、CoIII)和第二代和第三代 Newkome 型酰胺树突终止的不对称丙二酸酯 19-23 的合成。C60 与第二代树枝状结构 20 和 21 的环丙烷化导致富勒烯单加合物 24 和 25 的形成,代表了一种新型的树枝状二价体。在+II和+III的氧化态中Co的建立是通过分别在CN-和SCN-存在下用Na2S2O4或O2处理实现的,导致顺磁性配合物26和抗磁性轴向配位配合物27。终止二元组24和25的树枝状支链的叔丁基的脱保护产生相应的水溶性系统28和29。由于它们的两亲特性,胶束聚集体在水中形成。DOSY NMR 测量表明,由 28 个组成的聚集体在缓冲的 D2O 溶液(pH = 7.2)中的平均直径约为 7 nm。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)