Topochemical polymerization of unsymmetrical aryldiacetylene supramolecules with nitrophenyl substituents utilizing C–H⋯π interactions
作者： Shichao Wang , Yong Li , Hui Liu , Jinpeng Li , Tiesheng Li
DOI: 10.1039/C5OB00435G
关键词:
摘要: Diacetylenes are versatile building blocks, in which many functional groups can be incorporated for the construction of new materials with desirable properties. In this study, 6-(p or m-nitrophenyl)-3,5-hexadiyne-1-ol (4a 4b) containing nitrophenyl (host) and 2-hydroxyethyl (guest) different diacetylene terminals were designed to establish an ordered supramolecular assembly that is complied strict requirements topochemical polymerization diacetylenes. Crystal film bulk crystals compound 4b obtained successfully by cast re-precipitation methods. Both these could photopolymerize corresponding regular poly(diacetylene) polymer, as evidenced UV-vis, IR, FL Raman spectroscopy. The electrochemical properties behaviors 4a also investigated, results show differences between para meta positions mono-phenylacetylene substituents probably result from polymerization. Thus, m-nitrophenylbutadiyne derivatives sizeable C–H⋯π interactions seemed effective formation a polymerizable packing, appropriate
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