Tubular Arrangement of 1,3-Alternate Calix[4]arene with Bipyridines: A Platform for [2 + 2] Photocyclization
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By using a 1,3-alternate conformation of calix[4]arene tetrabenzoic acid (H4CTB), a pair of 4,4′-bipyridine has been aligned forming a cocrystallized one-dimensional tubular product 1. Inspired by this result, the 1,3-alternate H4CTB has been utilized as “clips” to anchor the CC bond pairs of 4,4′-bipyridylethene to give an isotypical H-bonded tubular product 2 which undergoes the solid-state photodimerization.
创建时间：
2016-02-19
