Cover Image, Volume 35, Issue 22

A solid‐state D 3h →D 3d reaction in monolayered TiS 2 is studied with topological methods of quantum chemistry. On page 1641 (DOI: 10.1002/jcc.23662 ). Maxim R. Ryzhikov et al. report the discovery of a weak exchange interaction between sulfur layers in H‐TiS 2 and TS‐TiS 2 states. The interaction indicates a reduction reaction accompanied by formation of a mixed Ti 4+ (d 0 )−Ti 2+ (d 2 ) valence oxidation state along withS 2 2 −anions. The result can be an important factor for understanding the nature of stabilization of MX 2 transition metal structures.