Transition-metal complexes of crown ether benzodithiolenes

Abstract

Three new dithiolene ligands have been synthesised, two of which have the novel feature of a crown ether ring attached directly to the benzene ring of an aryl dithiolene. Complexes with transition metals have been prepared and their ¹H, ¹³C NMR, UV/VIS and electrochemical properties recorded. The information obtained appears to reflect variations in the degree of delocalisation in the metallodithiolene ring within the series of complex types.