Acta Crystallographica · 1961 · 53 citations · 0 references
Natural SciencesChemistryMaterials ScienceCrystal StructureMaterials ChemistrySolid State PhysicsCrystal ChemistryCrystal LatticeCrystal SymmetryCrystallographyStructure DeterminationX-ray CrystallographyCrystal Structure DeterminationCrystal Symmetry DeterminationCrystallographic CharacterizationDiffraction Data CollectionLattice ParametersStructure FactorsTetragonal SystemX-ray Crystallographic Refinement
Weissenberg and precession diffraction data from a single crystal of Zr2Co were found to corroborate the Strukturbericht Type C16 (CuA12) structure (Pearson, 1958) reported by Nevitt & Downey (1961): Space group D~-I4/mcm, 4 Co at (0, 0, 0; , , ) (0, 0, ), 8Zr at (0,0,0; 1 ,)-{-(X, +X, 0; I+X,X, 0) ~' 2 --Eighteen (hOl) reflections were used with a least-squares program to determine the single structural parameter as x--0.1679 -+ 0.0019. Extrapolation of spacings obtained from Debye-Scherrer patterns against the Nelson-Riley function (1945) resulted in the tetragonal lattice parameters: a 0 = 6-363 A and c o = 5.469/l..