Nanospheres, Nanotubes, Toroids, and Gels with Controlled Macroscopic Chirality

被引：64

作者：

Arias, Sandra ^{[1
,2
]}

Freire, Felix ^{[1
,2
]}

Quinoa, Emilio ^{[1
,2
]}

Riguera, Ricardo ^{[1
,2
]}

机构：

[1] Univ Santiago de Compostela, Dept Organ Chem, Santiago De Compostela 15782, Spain

[2] Univ Santiago de Compostela, Ctr Res Biol Chem & Mol Mat CIQUS, Santiago De Compostela 15782, Spain

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 50期

关键词：

chirality; nanostructures; nanotubes; polymers; toroids; CINCHONA ALKALOID PENDANTS; METAL-ORGANIC FRAMEWORKS; HELICAL POLYMERS; POLY(PHENYLACETYLENE)S; AMPLIFICATION; POLYACETYLENE; DERIVATIVES; ASSEMBLIES; SENSE; SUPERSTRUCTURES;

D O I：

10.1002/anie.201406884

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interaction of a highly dynamic poly(aryl acetylene) (poly-1) with Li+, Na-,(+) and Ag+ leads to macroscopically chiral supramolecular nanospheres, nanotubes, toroids, and gels. With Ag+, nanospheres with Mhelicity and tunable sizes are generated, which complement those obtained from the same polymer with divalent cations. With Li+ or Na+, poly-1 yields chiral nanotubes, gels, or toroids with encapsulating properties and Mhelicity. Right-handed supramolecular structures can be obtained by using the enantiomeric polymer. The interaction of poly-1 with Na+ produces nanostructures whose helicity is highly dependent on the solvation state of the cation. Therefore, structures with either of the two helicities can be prepared from the same polymer by manipulation of the cosolvent. Such chiral nanotubes, toroids, and gels have previously not been obtained from helical polymer-metal complexes. Chiral nanospheres made of poly(aryl acetylene) that were previously assembled with metal(II) species can now be obtained with metal(I) species.

引用

页码：13720 / 13724

页数：5

共 61 条

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