Crystal Lattice Structures: Reference Date: 31 Dec 2002 Last Modified: 21 Oct 2004

# The UB12 (D2f) Structure

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• Prototype: UB12
• Pearson Symbol: cF52
• Strukturbericht Designation: D2f
• Space Group: Fm3m (Cartesian and lattice coordinate listings available)
• Number: 225
• Reference: Pearson, Alloys, pp. 757-8.
• Primitive Vectors:  A1 = ½ a Y + ½ a Z A2 = ½ a X + ½ a Z A3 = ½ a X + ½ a Y
• Basis Vector:  B1 = 0 (U) (4a) B2 = - (½ - 2 y) A1 + ½ A2 + ½ A3 = + ½ a X + y a Y + y a Z (B) (48i) B3 = + ½ A1 - (½ - 2 y) A2 + ½ A3 = + y a X + ½ a Y + y a Z (B) (48i) B4 = + ½ A1 + ½ A2 - (½ - 2 y) A3 = + y a X + y a Y + ½ a Z (B) (48i) B5 = + ½ A1 + (½ - 2 y) A2 - (½ - 2 y) A3 = + y a Y + (½ - y) a Z (B) (48i) B6 = + (½ - 2 y) A1 + ½ A2 - (½ - 2 y) A3 = + y a X + (½ - y) a Z (B) (48i) B7 = + (½ - 2 y) A1 - (½ - 2 y) A2 + ½ A3 = + y a X + (½ - y) a Y (B) (48i) B8 = + (½ - 2 y) A1 + ½ A2 + ½ A3 = + ½ a X + (½ - y) a Y + (½ - y) a Z (B) (48i) B9 = + ½ A1 + (½ - 2 y) A2 + ½ A3 = + (½ - y) a X + ½ a Y + (½ - y) a Z (B) (48i) B10 = + ½ A1 + ½ A2 + (½ - 2 y) A3 = + (½ - y) a X + (½ - y) a Y + ½ a Z (B) (48i) B11 = + ½ A1 - (½ - 2 y) A2 + (½ - 2 y) A3 = + (½ - y) a Y + y a Z (B) (48i) B12 = - (½ - 2 y) A1 + ½ A2 + (½ - 2 y) A3 = + (½ - y) a X + y a Z (B) (48i) B13 = - (½ - 2 y) A1 + (½ - 2 y) A2 + ½ A3 = + (½ - y) a X + y a Y (B) (48i)

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 Structures indexed by: This is a mirror of an old page created at theNaval Research LaboratoryCenter for Computational Materials ScienceThe maintained successor is hosted at http://www.aflowlib.org/CrystalDatabase/ and published as M. Mehl et al., Comput. Mater. Sci. 136 (Supp.), S1-S828 (2017).