Langmuir-Blodgett Films of Amphiphiles with Cyano Headgroups
Langmuir-Blodgett Films of Amphiphiles with Cyano Headgroups
复制标题
具有氰基头基的两亲物的 Langmuir-Blodgett 薄膜
DOI：
10.1080/00268948308074719
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发表时间：
1983
影响因子：
0.7
通讯作者：
S. Small
中科院分区：
文献类型：
--
作者：
M. F. Daniel;O. C. Lettington;S. Small
摘要记录了一些结构相关的芳香氰基衍生物的表面压力-面积等温线。T15（4-cyano-4″-n-pentyl-p-terphenyl）由于分子间π轨道重叠程度更大而产生最紧密的单层。该化合物给出了Z型多层沉积，并根据相邻层之间的偶极-偶极相互作用提出了这种转移行为的解释。X射线衍射研究表明，层厚度为20.5 ± 0.5A，并提出了与该值一致的分子堆积模型。初步比较了长链烷基氰化物的单层和多层行为。
Abstract Surface pressure-area isotherms for a number of structurally related aromatic cyano derivatives were recorded. T15 (4-cyano-4″-n-pentyl-p-terphenyl) gave the most cohesive monolayer owing to a greater degree of intermolecular π orbital overlap. This compound gave Z-type multilayer deposition and an explanation for this transfer behaviour is proposed based on dipole-dipole interactions between adjacent layers. An X-ray diffraction study showed the layer thickness to be 20.5 ± 0.5A and a molecular packing model consistent with this value is presented. Preliminary comparisons are made with the monolayer and multilayer behaviour of long-chain alkyl cyanides.