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. 2009 Jun 27;65(Pt 7):i55.
doi: 10.1107/S1600536809021734.

Ni(2)Si(P(2)O(7))(2)

Yahya Toubi, Rachid Essehli, Michal Dušek, Karla Fejfarová, Brahim El Bali

Ni(2)Si(P(2)O(7))(2)

Yahya Toubi et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

Dinickel(II) silicon bis-[diphosphate(4-)], Ni(2)Si(P(2)O(7))(2), is isotypic with other phosphates of the formula M(2)Si(P(2)O(7))(2) (M = Co, Cd). All atoms except Si (site symmetry 2) are found in general positions. Ni(2)O(10) dimers formed from edge-sharing NiO(6) octa-hedra are linked by corners and O-P-O bridges, forming slabs parallel to (100), which are in turn inter-connected by O-Si-O contacts.

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Figures

Fig. 1.
Fig. 1.
Ni2O10 dimers and their connection in Ni2Si(P2O7)2.
Fig. 2.
Fig. 2.
Projection of Ni2Si(P2O7)2 along [010].
Fig. 3.
Fig. 3.
Local coordination geometry around the Ni atom in Ni2Si(P2O7)2. Symmetry codes: (i) x, 1 + y, z, (iii) x, 1 - y, z (ii) -x + 1/2,y + 1/2,-z + 1/2, (iv) -x + 1/2,-y + 3/2,-z, (v) -x + 1/2,-y + 1/2,-z. Displacement ellipsoids are drawn at the 50% probability level.
See this image and copyright information in PMC

References

    1. Becker, P. J. & Coppens, P. (1974). Acta Cryst. A30, 129–147.
    1. Bostroem, D. (1987). Am. Mineral.72, 965–972.
    1. Brandenburg, K. & Putz, H. (2005). DIAMOND Crystal Impact GbR, Bonn, Germany.
    1. Durif, A. (1995). Crystal Chemistry of Condensed Phosphates New York: Plenum.
    1. Glaum, R. & Schmidt, A. (1996). Acta Cryst. C52, 762–764.