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The crystal structure of U4Ni5Al18
Published/Copyright:
August 25, 2010
Abstract
The crystal structure of U4Ni5Al18 has been refined from single crystal X-ray counter data; U4Ni5Al18 crystallizes in a unique structure type with the noncentrosymmetric space group Cm and lattice parameters: a = 1.5547(3) nm, b = 0.4061(1) nm, c = 1.6458(3) nm, β = 120.00(1)°, Z = 2. For 1471 reflections (|Fo| > 3σ) the obtained reliability factor was R = Σ|ΔF|/Σ|Fo| = 0.046, wR = 0.035. The structure type of U4Ni5Al18 shows complete order of all atoms. It is further characterized by a typical triangular prismatic coordination |U2A14| or [Al6| around the nickel atoms and belongs to the so-called series of inhomogeneous structures.
Published Online: 2010-08-25
Published in Print: 1989
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Articles in the same Issue
- Limits of isomorphous substitution of CnH2n + 2 chains in paraffins as a function of temperature
- Crystal structure analysis from powder diffraction data
- Intensitätsstatistik für Strukturen mit Überstruktureffekten
- Crystal and molecular structure of 10-methoxy-8, 8-dimethyl 2H,8H-benzo (1,2-b:5,4-b′-dipyron-2-one) (Luvangetin)
- Crystal structure of a complex of glycine with zinc chloride
- Ratio image seeking with multiple-wavelength X-ray diffraction data
- Verfeinerung der Kristallstruktur von Anthophyllit vom Ochsenkogel/Gleinalpe, Österreich
- Präzisionsbestimmung des Skalierungsfaktors für Relativwerte von Strukturamplituden mit Messung von Absolutintensitäten an Pulverpräparaten
- The X-ray revised stereochemistry of the hydroperoxide of atractyligenin
- Crystal structures of N-benzylcarbonyl-α-aminoisobutyric acid mono- and tripeptide methyl ester derivatives
- The crystal structure of U4Ni5Al18
- The crystal structure of Cs2Nd(N3)5
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