Conversion of a double-tetranuclear cluster silver helicate into a dihelicate via a rare desulfurization process

Sandra Fernández-Fariña; Luis M. González-Barcia; María J. Romero; Javier García-Tojal; Marcelino Maneiro; José M. Seco; Guillermo Zaragoza; Miguel Martínez-Calvo; Ana M. González-Noya; Rosa Pedrido

doi:10.1039/D1QI01308D

Conversion of a double-tetranuclear cluster silver helicate into a dihelicate via a rare desulfurization process†

Sandra Fernández-Fariña,

^a Luis M. González-Barcia,^a María J. Romero,^a Javier García-Tojal,

^b Marcelino Maneiro,

^c José M. Seco,^d Guillermo Zaragoza,^e Miguel Martínez-Calvo,

*^a Ana M. González-Noya

*^a and Rosa Pedrido

*^a

Author affiliations

* Corresponding authors

^a Departamento de Química Inorgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
E-mail: miguel.martinez.calvo@usc.es, ana.gonzalez.noya@usc.es, rosa.pedrido@usc.es

^b Departamento de Química, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain

^c Departamento de Química Inorgánica, Facultade de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain

^d Departamento de Química Orgánica, Facultade de Química, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain

^e Unidade de Difracción de Raios X, Edificio CACTUS, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain

Abstract

We present the first example of a silver double-tetranuclear cluster helicate [Ag₄L₂]₂ obtained from a bisthiosemicarbazone ligand using electrochemical synthesis. This cluster helicate undergoes a rare desulfurization process in chloroform giving rise to a cationic silver dihelicate [Ag₂(H₂L)₂]SO₄. This is the first silver mediated desulfurization reaction.

Inorganic Chemistry Frontiers

Conversion of a double-tetranuclear cluster silver helicate into a dihelicate via a rare desulfurization process†

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