Crystal Lattice Structures:	Creation Date: 25 Mar 2003
	Last Modified: 21 Oct 2004

The Cubic La₂O₃ 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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• The O atoms are randomly distributed over the (6b) sites, with a 50% probability that any one site is occupied. The sites form a simple cubic structure.

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• Prototype: La₂O₃
• Pearson Symbol: cI5
• Space Group: Im3m (Cartesian and lattice coordinate listings available)
• Number: 229
• Other compounds with this Structure: Nd₂O₃
• Reference: Villars and Calvert, Pearson's Handbook Vol. IV, p. 4189
• Primitive Vectors:

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

• Basis Vectors:

  B1	=		0		(La)	(2a)
  B2	=	½ A2 + ½ A3	=	½ a X	(½ O)	(6b)
  B3	=	½ A1 + ½ A3	=	½ a Y	(½ O)	(6b)
  B4	=	½ A1 + ½ A2	=	½ a Z	(½ O)	(6b)

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Structures indexed by: Strukturbericht Symbol Pearson Symbol Space Group Prototype

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