Macroscopic manifestation of a vapour-induced molecular switching phenomenon

被引：5
|
作者：
Richardson, T. H. [1 ]
Brittle, S. [1 ]
Parnell, A. J. [1 ]
Fryer, A. [1 ]
McCaig, T. [1 ]
Hobson, A. [1 ]
Dunbar, A. D. F. [2 ]
Hutchinson, J. [3 ]
Hunter, C. A. [3 ]
机构：
[1] Univ Sheffield, Dept Phys, Sheffield S3 7RH, S Yorkshire, England
[2] Univ Sheffield, Dept Chem & Proc Engn, Sheffield S1 3JD, S Yorkshire, England
[3] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England
来源：
SOFT MATTER | 2010年 / 6卷 / 14期
基金：
英国工程与自然科学研究理事会;
关键词：
FILMS;
D O I：
10.1039/c0sm00133c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We report a molecular switching event that leads to a reversible large-scale expansion of a floating porphyrin Langmuir layer residing at the air-water interface. This vapour-induced protonation-deprotonation mechanism, responsible for the expansion-contraction cycle, could potentially be exploited in applications in which a physical shape-change is triggered by exposure to an acidic or basic gas.
引用
收藏
页码：3157 / 3159
页数：3
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