Boron sulfides

In chemistry, boron sulfides refers to a large family of compounds with boron-sulfur bonds.

They are colorless solids that are prone toward hydrolysis, reflecting their tendency to form boron oxides.

With regards to structures, boron generally assumes the oxidation state III and sulfur is -II.

According to X-ray crystallography, this material is polymeric, with 3-coordinate B and 2-coordinate S. It features both four- and six-membered rings.

From a structural perspective, the simplest members are derivatives of trigonal planar [BS3]3−, exemplified by Li3BS3.

Structure of a part of the B 2 S 3 sheets. Color code: yellow = S, blue = B.
Structure of one form of BS 2