Crystal Lattice Structures: Creation Date:  5 Mar 1999 Last Modified: 21 Oct 2004

# The B6Ca (D21) Structure

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• In B6Ca we find x = 0.207.

• Prototype: B6Ca
• Pearson Symbol: cP7
• Strukturbericht Designation: D21
• Space Group: Pm3m (Cartesian and lattice coordinate listings available)
• Number: 221
• Primitive Vectors:  A1 = a X A2 = a Y A3 = a Z
• Basis Vectors:  B1 = 0 (Ca) (1a) B2 = + x A1 + ½ A2 + ½ A3 = + x aX + ½ aY + ½ aZ (B) (6f) B3 = - x A1 + ½ A2 + ½ A3 = - x aX + ½ aY + ½ aZ (B) (6f) B4 = + ½ A1 + x A2 + ½ A3 = + ½ aX + x aY + ½ aZ (B) (6f) B5 = + ½ A1 - x A2 + ½ A3 = + ½ aX - x aY + ½ aZ (B) (6f) B6 = + ½ A1 + ½ A2 + x A3 = + ½ aX + ½ aY + x aZ (B) (6f) B7 = + ½ A1 + ½ A2 - x A3 = + ½ aX + ½ aY - x aZ (B) (6f)

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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).