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

页码：3157 / 3159

页数：3

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