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摘要
A bis-benzimidazolium salt with oligoether-linker LH2 center dot(PF6)(2) and its 13-membered N-heterocyclic carbene silver(I) crown ether 1 have been synthesized and characterized. The coordination geometry of the silver(I) ion of 1 is nearly linear with a C(7)-Ag(1)-C(23) bond angle of 179.6(1)degrees. In the crystal packing of 1, a 2D supramolecular layer is formed by pi-pi stacking interactions from benzimidazole rings. In particular, the selective recognition of I- using 1 as a receptor was studied on the basis of fluorescence and UV/vis spectroscopic titrations.
- 出版日期2016
- 单位天津师范大学
