The stability of the carbenes from 1,2-dithiole and 1,3-dithiole in relation to the synthesis of 1,1′,3,3′- and 1,1′,2,2′-tetrathiafulvalenes

Abstract

Calculations show that the carbene from 1,3-dithiole is a stable species, whereas that from 1,2-dithiole is thermodynamically unstable. From the results obtained, it is concluded that synthesis of 1,1′,2,2′-tetrathiafulvalene via carbenoid species is probably impossible.