The Fe₄C 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.

When x = ¼, the iron atoms are at the positions of the face centered cubic lattice. In Fe₄C, x is about 0.265.

• Prototype: Fe₄C
• Pearson Symbol: cP5
• Strukturbericht Designation: None
• Space Group: P(-4)3m (Cartesian and lattice coordinate listings available)
• Number: 215
• Primitive Vectors:
  • A₁ = a X
  • A₂ = a Y
  • A₃ = a Z
• Basis Vectors:
  • B₁ = 0 (C)
  • B₂ = + x A₁ + x A₂ + x A₃ = + x a X + x a Y + x a Z (Fe)
  • B₃ = + x A₁ - x A₂ - x A₃ = + x a X - x a Y - x a Z (Fe)
  • B₄ = - x A₁ + x A₂ - x A₃ = - x a X + x a Y - x a Z (Fe)
  • B₅ = - x A₁ - x A₂ + x A₃ = - x a X - x a Y + x a Z (Fe)

See these vectors in a better notation.

Go back to the Cubic Close Packed structure page.

Go back to Crystal Lattice Structure page.

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