NDLI: X-ray diffraction study of the Cu$_{2}$Se—In$_{2}$Se$_{3}$—Cr$_{2}$Se$_{3}$ system near CuInCr$_{2}$Se$

Content Provider	Springer Nature Link
Author	Antsyshkina, A. S. Sadikov, G. G. Koneshova, T. I. Sergienko, V. S.
Copyright Year	2004
Abstract	The structure of three compounds in the Cu$_{2}$Se—In$_{2}$Se$_{3}$—Cr$_{2}$Se$_{3}$ system near CuInCr$_{2}$Se$_{5}$ is determined by single-crystal x-ray diffraction: CuInCr$_{4}$Se$_{8}$ (I), Cu$_{2}$In$_{2}$Se$_{4}$ (II), and Cu$_{0.5}$In$_{0.5}$Se (III). I has a cubic (spinel type) structure: a = 10.606(4) Å, Z = 4, sp. gr. F43m. II has a pseudotetragonal (sphalerite type) structure: a = 5.774(2) Å, c = 11.617(6) Å. The structure of II was solved in a reduced unit cell with a = 5.774(2) Å, b = 5.774(2) Å, c = 7.095(6) Å, α = 113.95(5)°, β= 113.95(5)°, γ= 90.00(4)°, Z = 1, sp. gr. P1. III has a triclinic cell (disordered structure of II): a = 4.088(1) Å, b = 4.091(2) Å, c = 4.101(1) Å, α = 60.05(1)°, β = 60.08(1)°, γ = 89.98(4)°, Z = 1, sp. gr. P1. The Cu and In atoms in I sit in inequivalent tetrahedral sites, and the Cr atoms reside in octahedral interstices of the close packing of Se atoms. The bond lengths are In−Se = 2.538(6), Cr(1)−Se(1) = 2.514(7), Cr(1)−Se(2) = 2.576(8), and Cu−Se = 2.437(5) Å. In II, all of the atoms sit in tetrahedral sites; the mean bond lengths are In−Se = 2.578(6) and Cu−Se = 2.44(1) Å. In III, the Cu and In atoms are fully disordered in the same tetrahedral site; the mean Cu(In)−Se bond length is 2.508(6) Å.
Starting Page	1259
Ending Page	1263
Page Count	5
File Format	PDF
ISSN	00201685
Journal	Inorganic Materials
Volume Number	40
Issue Number	12
e-ISSN	16083172
Language	English
Publisher	Nauka/Interperiodica
Publisher Date	2004-01-01
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inorganic Chemistry Industrial Chemistry/Chemical Engineering Materials Science
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Chemical Engineering Inorganic Chemistry

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