Structure 9001272

9001271 << 9001272 >> 9001273
Original COD entry Download CIF Download DOT

Citation: Post, J. E.; Veblen, D. R. (1990). Crystal structure determinations of synthetic sodium, magnesium and potassium birnessite using TEM and the Rietveld method Sample: K-birn. American Mineralogist, 75, pp. 477-489.

Formula: H3.7 K0.23 Mn O2.7

Cell parameters:

  • a = 5.149 Å
  • b = 2.843 Å
  • c = 7.176 Å
  • α = 90°
  • β = 100.76°
  • γ = 90°

List type: interleaving

List: 2D

Combined 3D structure and graph

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JSmol combined CIF view

Linear Graph Knot

Molecules

CIF datablock 0, entity 1 of 2

Basis: (1;0;0 0;1;0)

Dimensionality: 2

Formula: K4 O6 (K2 O3)

Multiplicity: 1

Coordination sequences:

  • 7, 29, 61, 92, 122, 152, 182, 212, 242, 272
  • 8, 34, 66, 96, 126, 156, 186, 216, 246, 276
  • 17, 47, 77, 107, 137, 167, 197, 227, 257, 287
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CIF datablock 1, entity 2 of 2

Basis: (1;0;0 0;1;0)

Dimensionality: 2

Formula: Mn2 O4 (Mn O2)

Multiplicity: 1

Coordination sequences:

  • 3, 21, 39, 57, 75, 93, 111, 129, 147, 165
  • 12, 30, 48, 66, 84, 102, 120, 138, 156, 174
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