Hydrazinoazadipeptides as aromatic solvent gelators

被引:29
作者
Carré, A [1 ]
Le Grel, P [1 ]
Baudy-Floc'h, M [1 ]
机构
[1] Univ Rennes 1, UMR CNRS 6510, Lab Synth & Electrosynth Organ, F-35042 Rennes, France
关键词
hydrazinoazapeptides; gel; electron microscopy; hydrogen bond;
D O I
10.1016/S0040-4039(01)00035-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
In the presence of a small amount of HCl, hydrazinoazadipeptides form thermoreversible physical gels with aromatic solvents. These gels are stable to 70-90 degreesC, and can be stored for months. Electron microscopy reveals that in these solvents. pseudopeptides self-assemble into elongated and very thin fibers, which in turn form a three-dimensional network that traps solvent molecules. Infrared studies showed that aggregation is accompanied by the formation of a hydrogen-bonded network between NH and CO of the hydrazinopeptides. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1887 / 1889
页数:3
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