Materials Data on TaS2N by Materials Project

Abstract

TaNS2 is H-Phase-like structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Ta5+ is bonded to six equivalent S2- atoms to form distorted TaS6 pentagonal pyramids that share corners with nine equivalent NS6 cuboctahedra, edges with three equivalent NS6 cuboctahedra, edges with six equivalent TaS6 pentagonal pyramids, and a faceface with one NS6 cuboctahedra. All Ta–S bond lengths are 2.49 Å. N1- is bonded to six equivalent S2- atoms to form distorted NS6 cuboctahedra that share corners with nine equivalent TaS6 pentagonal pyramids, edges with six equivalent NS6 cuboctahedra, edges with three equivalent TaS6 pentagonal pyramids, and a faceface with one TaS6 pentagonal pyramid. There are three shorter (3.44 Å) and three longer (3.45 Å) N–S bond lengths. S2- is bonded in a 3-coordinate geometry to three equivalent Ta5+ and three equivalent N1- atoms.