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

The Cu₂Sb (C38) 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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• Pearson's Handbook places one of the Copper atoms at the origin. We prefer the alternative choice, where the origin is at an inversion site.

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• Prototype: Cu₂Sb
• Pearson Symbol: tP6
• Strukturbericht Designation: C38
• Space Group: P4/nmm (Cartesian and lattice coordinate listings available)
• Number: 129
• Other Compounds with this Structure: AsCu₂, As₂U, CeSe₂, HoSe₂, GdO₂, HFSb₂, Te₂U, S₂Yb, KMgP, AsKMn, AlGeMn, GeNbSb, SnTeU, numerous others
• Primitive Vectors:

  A1	=	a X
  A2	=	a Y
  A3	=	c Z

• Basis Vectors:

  B1	=	¾ A1 + ¼ A2	=	¾ a X + ¼ a Y	(Cu-I)	(2a)
  B2	=	¼ A1 + ¾ A2	=	¼ a X + ¾ a Y	(Cu-I)	(2a)
  B3	=	¼ A1 + ¼ A2 + zCu A3	=	¼ a X + ¼ a Y + zCu c Z	(Cu-II)	(2c)
  B4	=	¾ A1 + ¾ A2 + zCu A3	=	¾ a X + ¾ a Y - zCu c Z	(Cu-II)	(2c)
  B5	=	¼ A1 + ¼ A2 + zSb A3	=	¼ a X + ¼ a Y + zSb c Z	(Sb)	(2c)
  B6	=	¾ A1 + ¾ A2 + zSb A3	=	¾ a X + ¾ a Y - zSb c Z	(Sb)	(2c)

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Structures indexed by: Strukturbericht Symbol Pearson Symbol Space Group Prototype

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