Materials Data on PrTe2Se by Materials Project
PrSeTe2 crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two PrSeTe2 sheets oriented in the (0, 1, 0) direction. Pr4+ is bonded in a 5-coordinate geometry to four Te1- and five equivalent Se2- atoms. All Pr–Te bond lengths are 3.44 Å. There are one shorter (3.04 Å) and four longer (3.13 Å) Pr–Se bond lengths. There are two inequivalent Te1- sites. In the first Te1- site, Te1- is bonded in a 6-coordinate geometry to two equivalent Pr4+ and four equivalent Te1- atoms. All Te–Te bond lengths are 3.05 Å. In the second Te1- site, Te1- is bonded in a 6-coordinate geometry to two equivalent Pr4+ and four equivalent Te1- atoms. Se2- is bonded to five equivalent Pr4+ atoms to form a mixture of distorted corner and edge-sharing SePr5 trigonal bipyramids.