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A neutron diffraction study of Cr3(11B0.44C0.56)C0.85 and Cr3C(C0.52N0.48)*
Veröffentlicht/Copyright:
25. August 2010
Abstract
The crystal structures of Cr3(C,N)2 and Cr3(B,C)2 were refined from neutron powder diffraction data using the Rietveld profile analysis method. In both cases nonmetal ordering was established (space group Cmcm; Z = 4, Re3B-type structure); the smaller nonmetal atoms prefer occupation of the octahedral interstices of the metal host lattice. Whereas occupation of the octahedral voids was complete for Cr3C (C0.52N0.48), a small vacancy formation was observed for Cr3(B0.44C0.56)C0.85. The obtained reliability values for the refinement were R = 0.072 for Cr3(B,C)2 and R = 0.057 for Cr3(C,N)2. The structural chemistry of filled Re3B-type compounds is discussed.
Published Online: 2010-08-25
Published in Print: 1982
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Artikel in diesem Heft
- Kristallographische Untersuchungen eines Petalits mittels Neutronenbeugung und Transmissionselektronenmikroskopie
- The crystal structure of manganese difluoride (MnF2): Reliability test of hypothetical intensity variances by means of χ2 distributions
- Site occupancy refinement of osumilite
- X-ray charge density study of rutile (TiO2)
- Tautoeikonic sets in some p, q cyclotomies
- Crystal structure of ferroelectric tetramethyl ammonium trichloromercurate
- Crystal structure of lead acetate trihydrate
- Molecular and crystal structure of C.I. Pigment Red 208, 12514, n-Butyl-2-{2-oxo-3-[N-(2-oxo-2,3-dihydro-5-benzimidazolyl)-carbamoyl]-naphthylidenhydrazino}-benzoat (PV-Rot HF2B)
- A random reflexion search method in four-circle diffractometry
- Crystal structure of N3P3Cl4[HN(CH2)3NH] at 133 K: a spiro cyclic cyclotriphosphazene
- Crystal structure of phenyl-α-d-glucopyranoside1
- Crystal structure of phenyl-β-d-glucopyranoside dihydrate1
- A neutron diffraction study of Cr3(11B0.44C0.56)C0.85 and Cr3C(C0.52N0.48)*
- Beiträge zur Strukturchemie phosphorhaltiger Ketten und Ringe
- The transition of orthoenstatite to protoenstatite and the structure at 1080°C
- Crystal structure of the synthetic zeolite N, NaAlSiO4 · 1.35 H2O
