Conversion of a double-tetranuclear cluster silver helicate into a dihelicate <i>via</i> a rare desulfurization process

We show the first example of a bisthiosemicarbazone silver double-tetranuclear cluster helicate [Ag 4 L 2 ] 2 obtained by electrochemical synthesis which undergoes a rare desulfurization process giving rise to a cationic silver dihelicate [Ag 2 (H 2 L) 2 ]SO 4 .