A unique type of a dicobalt cage templated by a weakly coordinated hexafluorophosphate anion: design, structure and solid-state NMR investigations
作者:Christophe Desmarets、Fabrizia Poli、Xavier F. Le Goff、Klaus Müller、Hani Amouri
DOI:10.1039/b918888f
日期:——
A dinuclear cobalt capsule [PF6⊂(CH3CN)2(Co2L4)][PF6]3 (2), (L = bis-benzimidazole-1,3-phenylene) has been prepared using a self-assembly approach. This unique class of cage is perfectly designed to encapsulate weakly coordinated anions, i.e. BF4− and PF6−via an M⋯anion weak interaction as illustrated by X-ray and solid-state NMR investigations. Selective anion binding for BF4− over PF6− is also observed