Nerve agent simulant detection by using chromogenic triaryl methane cation probes

Gotor Candel Raul Jesús, Royo Calvo Santiago, Costero Nieto Ana María, Parra Álvarez Margarita, Gil Grau Salvador, Martínez Mañez Ramón, Sancenón Galarza Félix

2012

Tetrahedron

Two triaryl methane cations have been used as probes for colorimetric detection of nerve agent simulants. Buffered mixed aqueous solutions of 1 and 2 showed bathochromic shifts in the presence of DCNP (diethylcyanophosphonate) and DCP (diethylchlorophosphate). The colour modulation can be observed to the naked eye. Appropriate mechanisms for the recognition event are proposed. © 2012 Elsevier Ltd.