Materials Data on ZrTi(PbO3)2 by Materials Project

Abstract

ZrTi(PbO3)2 is Pb(Zr_(1-x)Ti_x)O3-derived structured and crystallizes in the tetragonal P4mm space group. The structure is three-dimensional. Zr4+ is bonded in a 5-coordinate geometry to five O2- atoms. There are one shorter (1.98 Å) and four longer (2.09 Å) Zr–O bond lengths. Ti4+ is bonded to six O2- atoms to form distorted corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 16°. There are a spread of Ti–O bond distances ranging from 1.76–2.36 Å. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 12-coordinate geometry to eight O2- atoms. There are four shorter (2.56 Å) and four longer (2.90 Å) Pb–O bond lengths. In the second Pb2+ site, Pb2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are four shorter (2.52 Å) and four longer (2.90 Å) Pb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ti4+ and two equivalent Pb2+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Zr4+ and two equivalent Pb2+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Zr4+, one Ti4+, and four equivalent Pb2+ atoms. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Ti4+ and four equivalent Pb2+ atoms.