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Crystal data for uranium phosphorus pentoxide, UPO 5 , and uranium arsenic pentoxide, UAsO 5
Author(s) -
Barten H.
Publication year - 1986
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s002188988608888x
Subject(s) - triclinic crystal system , pentoxide , monoclinic crystal system , crystallography , chemistry , phosphorus pentoxide , uranium , crystal structure , powder diffraction , materials science , vanadium , inorganic chemistry , metallurgy , organic chemistry
Guinier powder patterns [ λ (Cu Kα 1 ) = 1.5406 Å] of UPO 5 and UAsO 5 have been indexed. UPO 5 is triclinic. The cell dimensions are: a = 5.472(2), b = 5.646(2), c = 7.027(1) Å, α = 87.39(2), β = 93.39(2), γ = 106.51(1)°, V = 207.7 Å 3 , Z = 2, D x = 5.58 g cm −3 . The new compound UAsO 5 appears monoclinic. The unit cell has dimensions: a = 8.833(2), b = 6.858(1), c = 7.151(1) Å, β = 96.88(1)°, V = 430.1 Å 3 , Z = 4, D x = 6.07 g cm −3 . The space group is P 2 1 / c . The data show the presence of a strong triclinic C subcell: a = 5.591(1), b = 5.591(1), c = 7.151(1) Å, α = 84.57(1), β = 95.43(1), γ = 104.35(1)°, which suggests that both compounds are structurally related. The JCPDS Diffraction File No. for UPO 5 is 37‐1462 and for UAsO 5 37‐1461.