
G. Sánchez, D. Curiel, I. Ratera, A. Tárraga, J. Veciana, P. Molina;
Dalton Trans., 2013,42, 6318-6326
DOI: 10.1039/c2dt32243a

A novel dyed mesoporous silica material, in which a thiourea moiety is acting as recognition centre and an azobenzene derivative as a chromophore, is described as a useful chromogenic sensor for the selective detection of Hg(II).