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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PrClO by Materials Project

PrOCl is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Pr3+ is bonded in a 9-coordinate geometry to four equivalent O2- and five equivalent Cl1- atoms. All Pr–O bond lengths are 2.38 Å. There are one shorter (3.12 Å) and four longer (3.21 Å) Pr–Cl bond lengths. O2- is bonded to four equivalent Pr3+ atoms to form a mixture of edge and corner-sharing OPr4 tetrahedra. Cl1- is bonded in a 5-coordinate geometry to five equivalent Pr3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr(ClO4)3 by Materials Project

Pr(ClO4)3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. Pr is bonded in a 9-coordinate geometry to nine O atoms. There are six shorter (2.50 Å) and three longer (2.57 Å) Pr–O bond lengths. There are three inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.42 Å. In the second O site, O is bonded in a bent 150 degrees geometry to one Pr and one Cl atom. The O–Cl bond length is 1.47 Å. In the third O site, O is bonded in a distorted bent 150 degrees geometry to one Pr and one Cl atom. The O–Cl bond length is 1.47 Å. Cl is bonded in a tetrahedral geometry to four O atoms.

36 MATERIALS SCIENCE↗