SPONTANEOUS CHIRAL SEGREGATION IN BIDIMENSIONAL FILMS

被引:69
作者
NASSOY, P
GOLDMANN, M
BOULOUSSA, O
RONDELEZ, F
机构
[1] Laboratoire de Physico Chimie des Surfaces et Interfaces, Section de Physique et Chimie, Institut Curie 11, 75231 Paris Cedex 05, rue Pierre et Marie Curie
关键词
D O I
10.1103/PhysRevLett.75.457
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have monitored spontaneous chiral segregation in Langmuir films of a racemic mixture of D and L myristoyl-alanine. Following monolayer deposition, we observe first a strong chiral discrimination, followed at longer times by a spatial segregation between D and L domains. Evidence for discrimination has been obtained by surface pressure/area per molecule measurements, whereas segregation is inferred from optical observations using epifluorescence microscopy and from an analysis of the lattice symmetry using x-ray diffraction.
引用
收藏
页码:457 / 460
页数:4
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