Copper Coordination Study in a Metal-Induced Chiral Polythiophene Aggregate
Copper Coordination Study in a Metal-Induced Chiral Polythiophene Aggregate
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金属诱导手性聚噻吩聚集体中的铜配位研究
DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
C. Alemán
中科院分区:
文献类型:
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作者:
J. Torras;C. Alemán
The chiral regioregular polythiophene, poly[(R)-3-(4-(4-ethyl-2-oxazolin-2-yl)phenyl)-thiophene] (PEOPT), forms chiral aggregates in chloroform under copper salt presence, with chirality disappearing upon the addition of acetonitrile. We report here a comprehensive quantum mechanical study of intermolecular assembly adducts with a copper ion that may be involved in this switching process. Results indicate that copper adducts made of undissociated copper salt in chloroform prefer a syn-(EOPT)2 disposition of ligands belonging to different polythiophene chains, favoring a double-stranded helical conformation. In contrast, doped polymer with copper ions in acetonitrile prefers an anti-(EOPT)2 arrangement for the different polythiophene side chains, favoring a nonchiral π-stacked packing. Furthermore, another cross-linked interaction besides the most stable NN-type has been characterized. Thus, NO-type interactions on the [Cu(EDOT)2]Cl2 adducts in chloroform have been shown to be energetically stable. However...
DOI:
10.1021/jp807643p
发表时间:
2009-09-10
期刊:
The journal of physical chemistry. A
影响因子:
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作者:
Yang Y;Weaver MN;Merz KM Jr
通讯作者:
Merz KM Jr