Crystal Lattice Structures: Creation Date:  1 May 2002 Last Modified: 21 Oct 2004

The Co2Si (C37) Structure

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• This structure is very similar to the PbCl2 (C23) structure.

• Prototype: Co2Si
• Pearson Symbol: oP12
• Strukturbericht Designation: C37
• Space Group: Pnma (Cartesian and lattice coordinate listings available)
• Number: 62
• Primitive Vectors:  A1 = a X A2 = b Y A3 = c Z
• Basis Vectors:  B1 = + x1 A1 + ¼ A2 + z1 A3 = + x1 a X + ¼ b Y + z1 c Z (Co-I) (4c) B2 = - x1 A1 + ¾ A2 - z1 A3 = - x1 a X + ¾ b Y - z1 c Z (Co-I) (4c) B3 = (½ - x1) A1 + ¾ A2 + (½ + z1) A3 = (½ - x1) a X + ¾ b Y + (½ + z1) c Z (Co-I) (4c) B4 = (½ + x1) A1 + ¼ A2 + (½ - z1) A3 = (½ + x1) a X + ¼ b Y + (½ - z1) c Z (Co-I) (4c) B5 = + x2 A1 + ¼ A2 + z2 A3 = + x2 a X + ¼ b Y + z2 c Z (Co-II) (4c) B6 = - x2 A1 + ¾ A2 - z2 A3 = - x2 a X + ¾ b Y - z2 c Z (Co-II) (4c) B7 = (½ - x2) A1 + ¾ A2 + (½ + z2) A3 = (½ - x2) a X + ¾ b Y + (½ + z2) c Z (Co-II) (4c) B8 = (½ + x2) A1 + ¼ A2 + (½ - z2) A3 = (½ + x2) a X + ¼ b Y + (½ - z2) c Z (Co-II) (4c) B9 = + x3 A1 + ¼ A2 + z3 A3 = + x3 a X + ¼ b Y + z3 c Z (Si) (4c) B10 = - x3 A1 + ¾ A2 - z3 A3 = - x3 a X + ¾ b Y - z3 c Z (Si) (4c) B11 = (½ - x3) A1 + ¾ A2 + (½ + z3) A3 = (½ - x3) a X + ¾ b Y + (½ + z3) c Z (Si) (4c) B12 = (½ + x3) A1 + ¼ A2 + (½ - z3) A3 = (½ + x3) a X + ¼ b Y + (½ - z3) c Z (Si) (4c)

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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).