Crystal Lattice Structures:	Reference Date:  5 Aug 1997
	Last Modified: 21 Oct 2004

The CuPt (L1₁) Structure

You can now

• see the structure from several perspectives;
• examine the structure with an external viewer; or
• download the coordinates of the atoms in these pictures in XYZ format.
• visualize the structure (Uses the JMOL Applet)

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• This lattice has only rhombohedral symmetry. When the parameter "b" below is set to a the atoms are on the sites of a face centered cubic lattice.
• Following Barrett and Massalski (p. 275), this is an idealization of the true structure, which has 32 atoms in the unit cell (which are not given in Pearson)

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• Prototype: CuPt
• Pearson Symbol: hR32
• Strukturbericht Designation: L1₁
• Space Group: R3m (Cartesian and lattice coordinate listings available)
• Number: 166
• Reference: Barrett and Massalski, Structure of Metals, p 275.
• Primitive Vectors:

  A1	=	b X + ½ a Y + ½ a Z
  A2	=	½ a X + b Y + ½ a Z
  A3	=	½ a X + ½ a Y + b Z

• Basis Vectors:

  B1	=		0		(Cu)	(1a)
  B2	=	½ A1 + ½ A2 + ½ A3	=	½ (a + b) X + ½ (a + b) Y + ½ (a + b) Z	(Pt)	(1b)

See these vectors in LaTeX output format.

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Structures indexed by: Strukturbericht Symbol Pearson Symbol Space Group Prototype

This is a mirror of an old page created at the Naval Research Laboratory Center for Computational Materials Science The 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).