Preparation and properties of inclusion compounds of cobalt cluster complexes with γ-cyclodextrin
作者:Masayuki Shimada、Akira Harada、Shigetoshi Takahashi
DOI:10.1016/0022-328x(92)83229-b
日期:1992.4
Inclusion compounds of di-, tri-, and tetranuclear transition metal complexes with γ-cyclodextrin (CD) have been prepared as the first example of an inclusion compound of cyclodextrin with a metal cluster complex. High yields of crystalline one-to-one inclusion compounds were obtained by the treatment of η2-acetylenedicobalt hexacarbonyl complexes with γ-CD. μ3-Phenylmethylidynetricobalt nonacarbonyl
作为环糊精与金属簇合物的包合物的第一实例,已经制备了二,三和四核过渡金属与γ-环糊精的包合物。通过用γ-CD处理η2-乙炔二钴六羰基配合物,可以高收率获得一对一的结晶结晶。μ 3 -Phenylmethylidynetricobalt nonacarbonyl,η 6 -mesitylenetetracobalt nonacarbonyl也形成具有γ-CD包合化合物。包合物的形成是选择性的。γ-CD形成1:1的主机:客体包化合物与η 2 -phenylacetylene-和η 2 -phenylmethylacetylenedicobalt hexacarbonyls,但不与所述空间较大η 2-二苯基二钴六羰基。α-CD和β-CD均未与任何钴簇复合物形成夹杂物。包含在γ-CD中的金属团簇配合物比游离的配合物更热稳定。