Alternative method for the preparation of Ni(dddt)(edt) (dddt = 5,6-dihydro-1,4-dithiin-2,3-dithiolate, edt = cis-1,2-ethylenedithiolate) and similar complexes

Abstract

Starting from 4,5-(ethylenedithio)-1,3-dithiol-2-one and 1,3-dithiol-2-one the disodium 5,6-dihydro-1,4-dithiin-2,3-dithiolate (Na2dddt) and disodium 1,2-dithiolate (Na2edt) salts were prepared, which react with NiCl2 in air to give the complex Ni(dddt)(edt) (3ab). This compound was characterized analytically and spectroscopically. The method is applicable for the preparation of similar unsymmetrical complexes. © 2005 Verlag der Zeitschrift für Naturforschung.