Crystal Lattice Structures: Creation Date: 20 Dec 2000 Last Modified: 21 Oct 2004

# The Moissanite-6H CSi Crystal Structure

You can now

• Prototype: CSi
• Pearson Symbol: hP12
• Space Group: P63mc (Cartesian and lattice coordinate listings available)
• Number: 186
• Reference: Villars and Calvert, Pearson's Handbook Vol. II, p. 2006.
• Primitive Vectors:  A1 = ½ a X - ½ 3½ a Y A2 = ½ a X + ½ 3½ a Y A3 = c Z
• Basis Vectors:  B1 = 0 (Si-I) (2a) B2 = ½ A3 = ½ c Z (Si-I) (2a) B3 = z1 A3 = z1 c Z (C-I) (2a) B4 = (½ + z1) A3 = (½ + z1) c Z (C-I) (2a) B5 = 1/3 A1 + 2/3 A2 + z2 A3 = ½ a X + 12-½ a Y + z2 c Z (Si-II) (2b) B6 = 2/3 A1 + 1/3 A2 + (½ + z2) A3 = ½ a X - 12-½ a Y + (½ + z2) c Z (Si-II) (2b) B7 = 1/3 A1 + 2/3 A2 + z3 A3 = ½ a X + 12-½ a Y + z3 c Z (C-II) (2b) B8 = 2/3 A1 + 1/3 A2 + (½ + z3) A3 = ½ a X - 12-½ a Y + (½ + z3) c Z (C-II) (2b) B9 = 1/3 A1 + 2/3 A2 + z4 A3 = ½ a X + 12-½ a Y + z4 c Z (Si-III) (2b) B10 = 2/3 A1 + 1/3 A2 + (½ + z4) A3 = ½ a X - 12-½ a Y + (½ + z4) c Z (Si-III) (2b) B11 = 1/3 A1 + 2/3 A2 + z5 A3 = ½ a X + 12-½ a Y + z5 c  Z (C-III) (2b) B12 = 2/3 A1 + 1/3 A2 + (½ + z5) A3 = ½ a X - 12-½ a Y + (½ + z5) c  Z (C-III) (2b)

### See these vectors in LaTeX output format.

Go back to the carbon and related structures page.

Go back to Crystal Lattice Structure page.

 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).