Materials Data on BeZnS2 by Materials Project

Abstract

BeZnS2 is Enargite-like structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. Be2+ is bonded to four S2- atoms to form BeS4 tetrahedra that share corners with six equivalent BeS4 tetrahedra and corners with six equivalent ZnS4 tetrahedra. There are one shorter (2.09 Å) and three longer (2.21 Å) Be–S bond lengths. Zn2+ is bonded to four S2- atoms to form ZnS4 tetrahedra that share corners with six equivalent BeS4 tetrahedra and corners with six equivalent ZnS4 tetrahedra. There are three shorter (2.30 Å) and one longer (2.34 Å) Zn–S bond lengths. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded to three equivalent Be2+ and one Zn2+ atom to form corner-sharing SBe3Zn tetrahedra. In the second S2- site, S2- is bonded to one Be2+ and three equivalent Zn2+ atoms to form corner-sharing SBeZn3 tetrahedra.