Structure of a phenylacetylene macrocycle at the air-water interface

被引:16
|
作者
Mindyuk, OY
Stetzer, MR
Gidalevitz, D
Heiney, PA [1 ]
Nelson, JC
Moore, JS
机构
[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
[2] Univ Penn, Res Struct Matter Lab, Philadelphia, PA 19104 USA
[3] Univ Illinois, Dept Chem, Roger Adams Lab, Urbana, IL 61801 USA
[4] Univ Illinois, Roger Adams Lab, Dept Engn, Urbana, IL 61801 USA
关键词
D O I
10.1021/la981092x
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We have used grazing incidence X-ray diffraction and X-ray specular reflectivity to study Langmuir films of a phenylacetylene macrocycle (PAM), a ring-shaped molecule known to form a tubular liquid crystal. PAM adopts an "edge-on" molecular arrangement at the air-water interface. The local structure is quite similar to that of the corresponding bulk columnar liquid crystal, but with enhanced order in the intracolumnar direction. The columnar order is disrupted by CsCl in the subphase and strongly enhanced by KCl in the subphase.
引用
收藏
页码:6897 / 6900
页数:4
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