SHORT INTERMOLECULAR S...S CONTACTS IN A REACTION-PRODUCT FROM THE CYCLIC SULFATE ESTER OF DIMETHYL L-TARTRATE AND 2-THIOXO-1,3-DITHIOLE-4,5-DITHIOLATE


OZTURK T. , POVEY D., WALLIS J.

TETRAHEDRON, vol.50, no.38, pp.11205-11212, 1994 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 38
  • Publication Date: 1994
  • Doi Number: 10.1016/s0040-4020(01)89422-9
  • Title of Journal : TETRAHEDRON
  • Page Numbers: pp.11205-11212

Abstract

Cyclic sulfate ester 6 reacts readily with dithiolate 4 to give meso and dl cyclic products 8 and 9. The crystal structure of 9 shows two short S...S intermolecular interactions (< 3.4 Angstrom) between trithiocarbonate groups, due to cooperative polarisations and the highly asymmetric shape of the bonded S atom. The latter effect is mainly responsible for the 'short' S...S contacts in ET's radical cation salts. In contrast to similar systems, the sp(3) C atoms of the six-membered ring in 9 are displaced to the same side of the dithiole plane.