Syn–anti conformation switching of a bis-porphyrin derivative at the air–water interface and in the solid state as an effective tool for chemical sensing

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Syn–anti conformation switching of a bis-porphyrin derivative at the air–water interface and in the solid state as an effective tool for chemical sensing†

Gabriele Giancane,*^a Victor Borovkov,^b Yoshihisa Inoue,^b Sabrina Conoci^c and Ludovico Valli^d

Author affiliations

* Corresponding authors

^a Department of Cultural Heritage, University of Salento, Via per Arnesano, Lecce, Italy
E-mail: gabriele.giancane@unisalento.it
Fax: +39 0832 297372

^b Department of Applied Chemistry, Osaka University, 2-1 Yamada-oka, Suita 565-0871, Japan

^c IMS R&D, STMicroelectronics, Stradale Primosole 50, Catania, Italy

^d Department of Biological and Environmental Sciences and Technologies, DISTEBA, University of Salento, Via per Arnesano, Lecce, Italy

Abstract

A Langmuir film of bis(zinc octaethylporphyrin) (ZnPP) was characterised at the air–water interface and its syn–anti conformation switching induced upon addition of aromatic amines was studied by infrared and UV–vis reflection spectroscopic methods. The highly specific interaction of ZnPP with aromatic amines was maintained even after the floating film was transferred onto solid supports by the Langmuir–Schaefer (LS) technique, enabling us to selectively sense aromatic amines at concentrations as low as 20 ppb. Furthermore, LS ZnPP active layer selectivity was evaluated in the presence of aliphatic amines.

Download options Please wait...

Supplementary files

Supplementary information PDF (346K)

Article information

DOI: https://doi.org/10.1039/C2SM27141A
Article type: Paper
Submitted: 17 Sep 2012
Accepted: 12 Dec 2012
First published: 10 Jan 2013

Download Citation

Soft Matter, 2013,9, 2302-2307

Permissions

Request permissions