Dithiete

Dithiete is an unsaturated heterocyclic compound that contains two adjacent sulfur atoms and two sp2-hybridized carbon centers.

With 6 π electrons, 1,2-dithietes are examples of aromatic organosulfur compounds.

A few 1,2-dithietes have been isolated;[1][2][3] one (low-yielding) route is oxidation of a dithiolene complex.

The open ring isomer, dithioglyoxal, HC(S)C(S)H, is less stable than the 1,2-dithiete.

[6] Quantum chemical calculations reproduce the observed greater stability of 1,2-dithiete only if large basis-sets with polarization functions are used.

Kekulé, skeletal formula of dithiete with all explicit hydrogens added
Kekulé, skeletal formula of dithiete with all explicit hydrogens added
Structure of the dithiete S 2 C 2 (CO 2 Me) 2 . Selected distances and angles: r C=C = 1.362, r C-S = 1.738, r S-S = 2.072 Å, < S-S-C = 78.3°, < S-C-S = 102°. [ 4 ]