Characterisation of the reaction of free-base porphyrin to nitrogen dioxide

被引:11
作者
McNaughton, A. J. [1 ]
Richardson, T. H.
Barford, W.
Dunbar, A.
Hutchinson, J.
Hunter, C. A.
机构
[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England
[2] Univ Sheffield, Dept Chem, Sheffield S3 7HF, S Yorkshire, England
基金
英国工程与自然科学研究理事会;
关键词
porphyrin; gas sensing; nitrogen dioxide;
D O I
10.1016/j.colsurfa.2006.01.050
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
The response of 5,10,15,20-tetrakis(3,4-bis[ethyl hexyloxy]phenyl)-21H,23H-porphine (EHO) to NO2 has been measured, both in solution and in Langmuir-Blodgett (LB) films. A change in the absorption spectrum has been observed, characterised by the reduction of the Soret and Q bands accompanied by the rise of two new bands at 464 and 697nm in solution. The response of free-base porphin to NO2 has been modelled using the Accelrys Materials Studio software. A good qualitative agreement can be seen between the predicted change in absorption spectrum for free-base porphin and the response observed for EHO. LB films of EHO/calixarene mixes showed a response to NO2 similar in form to the response of EHO in solution. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:345 / 349
页数:5
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