利用全氟苯基-苯基相互作用的交替二乙炔共聚物。

Alternating diacetylene copolymer utilizing perfluorophenyl-phenyl interactions.

作者信息

Xu Rui, Gramlich Volker, Frauenrath Holger

机构信息

Department of Materials, Eidgenössische Technische Hochschule Zürich, Hönggerberg, HCI H515, CH-8093 Zürich, Switzerland.

出版信息

J Am Chem Soc. 2006 Apr 26;128(16):5541-7. doi: 10.1021/ja0603204.

DOI:10.1021/ja0603204

PMID:16620128

Abstract

The symmetric diacetylenes, 2,4-hexadiynylene dibenzoate 4 and 2,4-hexadiynylene bis(pentafluorobenzoate) 5, as well as the unsymmetric 6-(pentafluorobenzoyloxy)hexa-2,4-diynyl benzoate 6 were prepared and investigated with respect to their reactivity toward topochemical polymerization in the crystalline state. The 1:1 cocrystal 4.5 was successfully polymerized to the corresponding poly(diacetylene) copolymer 7, as evidenced by solid-state (13)C NMR and Raman spectroscopy, as well as single-crystal structure analysis of the monomer-polymer cocrystal. Thus, perfluorophenyl-phenyl interactions were utilized as complementary supramolecular synthons in the cocrystallization of two different diacetylene monomers and their unprecedented conversion into a strictly alternating diacetylene copolymer.

摘要

制备了对称二乙炔化合物2,4 -己二炔撑二苯甲酸酯4和2,4 -己二炔撑双（五氟苯甲酸酯）5，以及不对称的6 -（五氟苯甲酰氧基）己 - 2,4 -二炔基苯甲酸酯6，并研究了它们在结晶状态下对拓扑化学聚合的反应活性。通过固态（13）C NMR和拉曼光谱以及单体 - 聚合物共晶体的单晶结构分析证明，1:1共晶体4.5成功聚合成相应的聚二乙炔共聚物７。因此，全氟苯基 - 苯基相互作用在两种不同二乙炔单体的共结晶中被用作互补的超分子合成子，并将它们前所未有的转化为严格交替的二乙炔共聚物。