Diastereoselective assembly of pentanuclear circular helicates
作者:Oliver R. Clegg、Rebecca V. Fennessy、Lindsay P. Harding、Craig. R. Rice、T. Riis-Johannessen、Nicholas C. Fletcher
DOI:10.1039/c1dt11414j
日期:——
separated by a 1,3-phenylene spacer unit with Zn2+ ions results in a pentanuclearcircularhelicate [Zn5(L)5]10+ and this structure persists in both the solid and solution state. The formation of this high nuclearity species is governed by unfavourable steric interactions between the phenyl units which destabilize the simple linear helicate. Incorporation of enantiopure units within the ligand strand controls