科研之友
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摘要
A hexanuclear hexagonal organotin macrocycle [(n-Bu3Sn)(6)(mu-L)(6)(I-)(2)(MeOH)(6)] (1) was synthesized in a 1:1 reaction of (n-Bu3Sn)(2)O and 4,5-dicarboxy-1,3-dimethyl-1H-imidazol-3-ium iodide (LH2I). The molecular structure of 1 reveals that it is a 42-membered hexatin macrocycle possessing a C-3 (pseudo-S-6) symmetry. The alternate up-down arrangement of imidazolium units allows the molecule to assume a chair topology. The hexagonal packing of these macrocycles, in the solid-state, results in nanoscale one-dimensional channels which entrap two I- ions in close proximity (similar to 3.7 angstrom) as a result of various supramolecular interactions.
- 出版日期2014-7
