The B33 (CrB) Structure

Last modified 5 April 2001

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.

Note that removing either the Cr or B atoms transforms this into the alpha-Uranium (A20) structure.

• Prototype: CrB
• Pearson Symbol: oC8
• Strukturbericht Designation: B33
• Space Group: Cmcm (Cartesian and lattice coordinate listings available)
• Number: 63
• Other Compounds with this Structure: AgCa, NiB, VB, TaB, WB, ScAl, HfAl, AuTh, AuPr, AuCr
• Primitive Vectors:
  • A₁ = a X
  • A₂ = ½ a X + ½ b Y
  • A₃ = c Z
• Basis Vectors:
  • B₁ = -x₁A₁ + 2 x₁A₂ + ¼ A₃ = + x₁ bY + ¼ cZ (Cr)
  • B₂ = +x₁A₁ - 2 x₁A₂ - ¼ A₃ = - x₁ bY - ¼ cZ (Cr)
  • B₃ = -x₂A₁ + 2 x₂A₂ + ¼ A₃ = + x₂ bY + ¼ cZ (B)
  • B₄ = +x₂A₁ - 2 x₂A₂ - ¼ A₃ = - x₂ bY - ¼ cZ (B)

See these vectors in a better notation.

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