Crystal Lattice Structures:	Creation Date: 13 Apr 2002
	Last Modified: 21 Oct 2004

The Cf 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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• Though this is a very low symmetry structure, in the special case
  
  
  • b = 2a
  • c = a
  • α = β = γ = 90^o
  • x = ½ y = ¼ z = ½
  
  The atoms are on the sites of the bcc lattice. If we make the atoms on the (2i) sites different from the atoms on the (1a) and (1c) sites, then we get a CsCl (B2) structure.

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• Prototype: Cf
• Pearson Symbol: aP4
• Space Group: P1 (Cartesian and lattice coordinate listings available)
• Number: 2
• Reference: Donohue, The Structure of the Elements
• Primitive Vectors:

  A1	=	a X
  A2	=	bx X + by Y
  A3	=	cx X + cy Y + cz Z

• In terms of the traditional lattice parameters: a, b, c, α, β, and γ:
  
  

  bx	=	b cos(γ)
  by	=	b sin(γ)
  cx	=	c cos(β)
  cy	=	c [ cos(α) - cos(β) cos(γ) ]/sin(γ)
  cz	=	[c2 - cx2 - cy2]½

• Basis Vectors:

  B1	=		0		(1a)
  B2	=	½ A2	=	½ bx X + ½ by Y	(1c)
  B3	=	+ x A1 + y A2 + z A3	=	+ (x a + y bx + z cx) X + (y by + z cy) Y + z cz Z	(2i)
  B4	=	- x A1 - y A2 - z A3	=	- (x a + y bx + z cx) X - (y by + z cy) Y - z cz Z	(2i)

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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).