Structure 9001948

9001947 << 9001948 >> 9001949
Original COD entry Download CIF Download DOT

Citation: Fleet, M. E. (1998). Sodium heptasilicate: A high-pressure silicate with six-membered rings of tetrahedra interconnected by SiO6 octahedra: (Na8Si[Si6O18]). American Mineralogist, 83, pp. 618-624.

Formula: Na8 O18 Si7

Cell parameters:

  • a = 7.180 Å
  • b = 7.180 Å
  • c = 7.180 Å
  • α = 87.26°
  • β = 87.26°
  • γ = 87.26°

List type: noninterleaving

List: 3D

Combined 3D structure and graph

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JSmol combined CIF view

Linear Graph Knot

Molecules

CIF datablock 0, entity 1 of 1

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

Dimensionality: 3

Formula: O18 Si7 (O18 Si7)

Multiplicity: 1

Coordination sequences:

  • 1, 3, 3, 11, 9, 31, 21, 64, 36, 109
  • 2, 6, 4, 16, 14, 44, 28, 84, 44, 126
  • 2, 8, 7, 21, 14, 44, 25, 80, 47, 133
  • 4, 3, 11, 9, 31, 21, 64, 36, 109, 53
  • 6, 6, 18, 12, 36, 18, 60, 36, 108, 60
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