Issue 27, 2010
From the journal:

Dalton Transactions

Octahedral iron(ii) phthalocyanine complexes: multinuclear NMR and relevance as NO2 chemical sensors†

Pascual Oña-Burgos,a   María Casimiro,a   Ignacio Fernández,*a   Angel Valero Navarro,b   Jorge F. Fernández Sánchez,*b   Antonio Segura Carreterob  and  Alberto Fernández Gutiérrezb  

* Corresponding authors

a Área de Química Orgánica, Universidad de Almería, Carretera de Sacramento s/n, Almería, Spain
E-mail: ifernan@ual.es
Fax: +34 950 015481
Tel: +34 950 015648

b Department of Analytical Chemistry, University of Granada, Avenida Fuentenueva s/n, Granada, Spain
E-mail: jffernan@ugr.es

Abstract

The synthesis of new phthalocyanine iron(II) (FePc) based coordination complexes 2–7, their structural characterization by multinuclear NMR (1H, 13C, 15N, 31P, 57Fe), and their use as improved sensitive and cheap optical NO2 sensors is described. δ(15N) and δ(57Fe) values obtained via HMQC NMR methods show an interesting trend, the larger the chemical shift value the more the selectivity towards NO2. Among all the sensing films prepared, the novel mixed ligand phosphite-amine [FePc(benzylamine)(P(OEt)3] (7) immobilized into AP200/19 showed the best sensitivity, reversibility (LOD and LOQ of 1.2 ppb and 4.0 ppb, respectively), and thermostability in the range of 4 to 25 °C.

Graphical abstract: Octahedral iron(ii) phthalocyanine complexes: multinuclear NMR and relevance as NO2 chemical sensors

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Article information

DOI
https://doi.org/10.1039/B924429H
Article type
Paper
Submitted
20 Nov 2009
Accepted
05 May 2010
First published
03 Jun 2010

Dalton Trans., 2010,39, 6231-6238

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Octahedral iron(II) phthalocyanine complexes: multinuclear NMR and relevance as NO2 chemical sensors

P. Oña-Burgos, M. Casimiro, I. Fernández, A. V. Navarro, J. F. Fernández Sánchez, A. S. Carretero and A. F. Gutiérrez, Dalton Trans., 2010, 39, 6231 DOI: 10.1039/B924429H

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