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Figure 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 + ,y + 1/2,-z + , (iv) −x + ,-y + ,-z, (v) −x + ,-y + ,-z. Displacement ellipsoids are drawn at the 50% probability level. |