Control of the Helicity of Poly (phenylacetylene)s: From the Conformation of the Pendant to the Chirality of the Backbone

被引:78
作者
Louzao, Iria [1 ]
Seco, Jose M. [1 ]
Quinoa, Emilio [1 ]
Riguera, Ricardo [1 ]
机构
[1] Univ Santiago de Compostela, Dept Quim Organ, Fac Quim, Santiago De Compostela 15782, Spain
关键词
barium; helical structures; isomerization; polymers; solvent effects; ABSOLUTE-CONFIGURATION; MACROMOLECULAR HELICITY; CHAIN HELICITY; POLY(PHENYLACETYLENE); SENSE; POLYACETYLENE; COMPLEXATION; BARIUM(II); H-1-NMR; AMINES;
D O I
10.1002/anie.200905222
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) Helix sense selection: Tuning the conformational equilibrium of the pendants of poly(phenylacetylene)s allows selection of the helicity of the polymer in a reversible way. Complexation with appropriate metal cations (e.g. Ba2+) or changing the polarity of the solvent permits the reversible selection of the desired helix sense. A full picture of the mechanism explaining this phenomenon is presented. © 2010 Wiley-VCH Verlag GmbH &. Co. KGaA.
引用
收藏
页码:1430 / 1433
页数:4
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