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DOE OSTI2020

Materials Data on Zr(Se2Cl3)2 by Materials Project

Zr(SeCl3)2(Se)2 crystallizes in the orthorhombic Pccn space group. The structure is one-dimensional and consists of eight selenium molecules and two Zr(SeCl3)2 ribbons oriented in the (1, 1, 0) direction. In each Zr(SeCl3)2 ribbon, Zr2+ is bonded in an octahedral geometry to six Cl1- atoms. There are two shorter (2.45 Å) and four longer (2.52 Å) Zr–Cl bond lengths. Se1+ is bonded in a bent 120 degrees geometry to two Cl1- atoms. There are one shorter (2.97 Å) and one longer (2.99 Å) Se–Cl bond lengths. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Zr2+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Zr2+ and one Se1+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Zr2+ and one Se1+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Zr(SeCl6)2 by Materials Project

Zr(SeCl6)2 crystallizes in the orthorhombic Fdd2 space group. The structure is three-dimensional. Zr4+ is bonded to six Cl1- atoms to form ZrCl6 octahedra that share corners with two equivalent SeCl6 octahedra and edges with two equivalent SeCl6 octahedra. The corner-sharing octahedral tilt angles are 46°. There are a spread of Zr–Cl bond distances ranging from 2.47–2.52 Å. Se4+ is bonded to six Cl1- atoms to form distorted SeCl6 octahedra that share a cornercorner with one ZrCl6 octahedra and an edgeedge with one ZrCl6 octahedra. The corner-sharing octahedral tilt angles are 46°. There are a spread of Se–Cl bond distances ranging from 2.19–2.96 Å. There are six inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Zr4+ and one Se4+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Se4+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Se4+ atom. In the fourth Cl1- site, Cl1- is bonded in a distorted water-like geometry to one Zr4+ and one Se4+ atom. In the fifth Cl1- site, Cl1- is bonded in a distorted water-like geometry to one Zr4+ and one Se4+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se4+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Zr(Se2Cl3)2 by Materials Project

Zr(SeCl3)2(Se)2 crystallizes in the tetragonal P4_2/ncm space group. The structure is one-dimensional and consists of eight selenium molecules and two Zr(SeCl3)2 ribbons oriented in the (1, 1, 0) direction. In each Zr(SeCl3)2 ribbon, Zr2+ is bonded in an octahedral geometry to six Cl1- atoms. There are two shorter (2.46 Å) and four longer (2.52 Å) Zr–Cl bond lengths. Se1+ is bonded in a bent 120 degrees geometry to two equivalent Cl1- atoms. Both Se–Cl bond lengths are 2.99 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Zr2+ and one Se1+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Zr2+ atom.

36 MATERIALS SCIENCE↗