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Abstract:
Crystal structure determination of UPTe revealed a UGeTe derivative
structure with a pseudo-tetragonal unit cell with lattice parameters a =
410.1(1) pm and c = 1697.1(1) pm at 120(2) K. ThPTe can be regarded as
isotypic according to powder X-ray diffraction data, its
pseudo-tetragonal lattice parameters are a = 425.05(1) pm and c =
1726.8(1) pm at 296(1) K. Real-space topological analysis of the
chemical bonding and Raman data reveal the presence of P-2 units.
U2PTe2O can be considered as a partially oxidised phosphide telluride
with a pseudo-tetragonal unit cell, a = 403.7(1) pm, and c = 3206.8(10)
pm at 120(2) K. Single-crystal X-ray diffraction data of UPTe and
U2PTe2O indicate an ordered orientation of the P-2 dumbbells leading to
a monoclinic distortion, which implies a symmetry decrease to space
group I11m.
