Self-Assembly of Diacetylene-Bridged Phenylenevinylene Oligomers in Water and Organic Solvents

被引：4

作者：

Garcia-Iglesias, Miguel ^{[1
]}

Jose Mayoral, Maria ^{[1
]}

Serrano-Molina, David ^{[1
]}

Aparicio, Fatima ^{[1
]}

Vazquez-Gonzalez, Violeta ^{[1
]}

Gonzalez-Rodriguez, David ^{[1
,2
]}

机构：

[1] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Organ, E-28049 Madrid, Spain

[2] Univ Autonoma Madrid, Inst Adv Res Chem Sci IAdChem, E-28049 Madrid, Spain

来源：

CHEMPLUSCHEM | 2019年 / 84卷 / 05期

基金：

欧盟地平线“2020”;

关键词：

cooperativity; oligo(phenylenevinylene)s; pi-conjugated molecules; self-assembly; supramolecular polymers; SUPRAMOLECULAR POLYMERIZATION; MOLECULAR ARCHITECTURE; CHELATE COOPERATIVITY; DERIVATIVES; SPECTROSCOPY; MORPHOLOGY; MECHANISM; EMISSION; STATES; SHAPE;

D O I：

10.1002/cplu.201900207

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Rodlike pi-conjugated molecules in which two OPV fragments are connected through a diacetylene bond self-assemble in aqueous and organic media. Optical spectroscopy and AFM measurements indicated that, in water, strong hydrophobic interactions between pi-cores promote aggregation into robust, uniform micellar structures. In contrast, in apolar solvents, a fibrilar morphology is obtained by coiling of columnar stacks. These stacks are formed in a nucleation-elongation process with degrees of cooperativity of 0.006, that is influenced by the low rotation barriers around the sigma-bonds in the diacetylene linker.

引用

页码：488 / 492

页数：5

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