An organopalladium chromogenic chemodosimeter for the selective naked-eye detection of Hg2+ and MeHg+ in water–ethanol 1 : 1 mixture

O. del Campo; A. Carbayo; J. V. Cuevas; A. Muñoz; G. García-Herbosa; D. Moreno; E. Ballesteros; S. Basurto; T. Gómez; T. Torroba

doi:10.1039/B807670G

An organopalladium chromogenic chemodosimeter for the selective naked-eye detection of Hg²⁺ and MeHg⁺ in water–ethanol 1 : 1 mixture†

O. del Campo,^a A. Carbayo,^a J. V. Cuevas,^a A. Muñoz,^a G. García-Herbosa,*^a D. Moreno,^a E. Ballesteros,^a S. Basurto,^a T. Gómez^a and T. Torroba*^a

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^a Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
E-mail: ttorroba@ubu.es, gherbosa@ubu.es
Fax: +34 947258831
Tel: +34 947258088

Abstract

An organopalladium chemical dosimeter of Hg²⁺ that methylates Hg²⁺, undergoing a colour change in 1 : 1 ethanol–water with submicromolar sensitivity, gives rise to an aqua–palladium complex that is methylated by MeHg⁺ in the presence of a dithiol compound, undergoing another colour change, thus making the system suitable for the naked-eye detection of Hg²⁺ and MeHg⁺, two environmentally important species of Hg²⁺.

This article is part of the themed collection: Crystal engineering with ionic liquids

Chemical Communications

An organopalladium chromogenic chemodosimeter for the selective naked-eye detection of Hg²⁺ and MeHg⁺ in water–ethanol 1 : 1 mixture†

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An organopalladium chromogenic chemodosimeter for the selective naked-eye detection of Hg²⁺ and MeHg⁺ in water–ethanol 1 : 1 mixture

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