3-Oxo-4-thioxo-1,2,5,6-tetrathiapentalene (OTTP): a novel thiocarbon with an unusual chalcogen network in its solid state structure
Abstract
The novel title heterocycle, which was prepared in three steps and is the last possible isomer of the C4X6(X = chaclogen) group, exhibits unusual 13C n.m.r. line broadening and a short intramolecular nonbonded S–O distance as well as extremely short intermolecular contacts in the solid state, as determined by X-ray crystallography.