Crystal Lattice Structures:	Creation Date: 4 Jun 2001
	Last Modified: 21 Oct 2004

The CaCu₅ (D2_d) 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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• Prototype: CaCu₅
• Pearson Symbol: hP6
• Strukturbericht Designation: D2_d
• Space Group: P6/mmm (Cartesian and lattice coordinate listings available)
• Number: 191
• Reference: Villars and Calvert, Pearson's Handbook Vol. II, p 2044.
• Other systems with this structure: Au₅Er, Au₅Sr, Ag₃Al₂La, Ag₅Ba, CePt₅, Co₅Sm, Co₅Tb, Co₅Y, EuZn₅, GdRh₅, Ir₅Nd, LaNi₅, SmZn₅, many others
• 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		(Ca)	(1a)
  B2 =	1/3 A1 + 2/3 A2	=	½ a X + (12)-½ a Y	(Cu-I)	(2c)
  B3 =	2/3 A1 + 1/3 A2	=	½ a X - (12)-½ a Y	(Cu-I)	(2c)
  B4 =	½ A1 + ½ A3	=	¼ a X - ¼ 3-½ a Y + ½ c Z	(Cu-II)	(3g)
  B5 =	½ A2 + ½ A3	=	¼ a X + ¼ 3-½ a Y + ½ c Z	(Cu-II)	(3g)
  B4 =	½ A1 + ½ A2 + ½ A3	=	½ a X + ½ c Z	(Cu-II)	(3g)

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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).