title: Evolution of chemical bonding and electron density rearrangements during D(3h) → D(3d) reaction in monolayered TiS2: a QTAIM and ELF study.
abstract: Monolayered titanium disulfide TiS2, a prospective nanoelectronic material, was previously shown to be subject to an exothermic solid-state D3h -D3d reaction that proceeds via a newly discovered transition state. Here, we study the reaction in detail using topological methods of quantum chemistry (quantum theory of atoms in molecules and electron localization function analysis) and show how electron density and chemical bonding between the atoms change in the course of the reaction. The reaction is shown to undergo a series of topological catastrophes, associated with elementary chemical events such as break and formation of bonds (including the unexpected formation of S-S bonding between sulfur layers), and rearrangement of electron density of outer valence and core shells.
authors.affiliation: Laboratory of Physical Chemistry of Condensed Matter, Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentieva Av, Novosibirsk, 630090, Russian Federation; Natural Sciences Department, Novosibirsk State University, 2 Pirogova Str., Novosibirsk, 630090, Russian Federation.
authors.forename: Maxim R
authors.initials: MR
authors.lastname: Ryzhikov
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Slepkov
authors.forename: Svetlana G
authors.initials: SG
authors.lastname: Kozlova
authors.forename: Svyatoslav P
authors.initials: SP
authors.lastname: Gabuda
keywords: DFT; electron localization function; monolayered titanium disulfide; quantum theory of atoms in molecules; solid-state reaction