Two-Component Gel Formation by Pseudoenantiomeric Ethynylhelicene Oligomers

被引：48

作者：

Amemiya, Ryo ^{[1
]}

Mizutani, Marie ^{[1
]}

Yamaguchi, Masahiko ^{[1
,2
]}

机构：

[1] Tohoku Univ, Grad Sch Pharmaceut Sci, Dept Organ Chem, Sendai, Miyagi 9808578, Japan

[2] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 11期

关键词：

circular dichroism; gels; pseudoenantiomers; sol-gel processes; GELATION; ORGANOGELATORS; ORGANIZATION; RACEMATE; GELATORS; LIQUIDS;

D O I：

10.1002/anie.200906693

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Long and winding gel: Mixtures of (M)-and (P)-ethynylhelicene oligomers (see structure) differing in the numbers of helicene units formed organogels in toluene, which exhibited better thermoreversibility in the sol-gel process than those formed from enantiomers. Various twocomponent gels were obtained by changing the combination of the component pseudoenantiomeric oligomers, provided that they were larger than a trimer. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：1995 / 1999

页数：5

共 25 条

[11] Two component hydrogel with γ-amino butyric acid as potential receptor and neurotransmitter delivery system [J].

Haldar, Debasish .

TETRAHEDRON, 2008, 64 (01) :186-190

[12] Self-organisation in the assembly of gels from mixtures of different dendritic peptide building blocks [J].

Hirst, Andrew R. ;

Huang, Buqing ;

Castelletto, Valeria ;

Hamley, Ian W. ;

Smith, David K. .

CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (08) :2180-2188

[13] Two-component gel-phase materials - Highly tunable self-assembling systems [J].

Hirst, AR ;

Smith, DK .

CHEMISTRY-A EUROPEAN JOURNAL, 2005, 11 (19) :5496-5508

[14] A new trinuclear Cu(II) complex of inositol as a hydrogelator [J].

Joshi, Sachin A. ;

Kulkarni, Neelima D. .

CHEMICAL COMMUNICATIONS, 2009, (17) :2341-2343

[15] Quater-, quinque-, and sexithiophene organogelators: Unique thermochromism and heating-free sol-gel phase transition [J].

Kawano, S ;

Fujita, N ;

Shinkai, S .

CHEMISTRY-A EUROPEAN JOURNAL, 2005, 11 (16) :4735-4742

[16] Chiral bis(amino alcohol) oxalamide gelators-gelation properties and supramolecular organization: Racemate versus pure enantiomer gelation [J].

Makarevic, J ;

Jokic, M ;

Raza, Z ;

Stefanic, Z ;

Kojic-Prodic, B ;

Zinic, M .

CHEMISTRY-A EUROPEAN JOURNAL, 2003, 9 (22) :5567-5580

[17] Synthesis and self-aggregation of cyclic alkynes containing helicene [J].

Nakamura, K ;

Okubo, H ;

Yamaguchi, M .

ORGANIC LETTERS, 2001, 3 (08) :1097-1099

[18] Molecules that assemble by sound: An application to the instant gelation of stable organic fluids [J].

Naota, T ;

Koori, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (26) :9324-9325

[19] Transformation of isotropic fluid to nematic gel triggered by dynamic bridging of supramolecular nanocylinders [J].

Ryu, JH ;

Lee, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (41) :14170-14171

[20] [3+3]Cycloalkyne dimers linked by an azo group:: A stable cis-azo compound forms polymeric aggregates by nonplanar π-π interactions [J].

Saiki, Y ;

Sugiura, H ;

Nakamura, K ;

Yamaguchi, M ;

Hoshi, T ;

Anzai, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (31) :9268-9269

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