Figure 6
The inter-chain contacts between the [—Cd(NH3)n—NC—Ni(CN)2—CN—]∞ chains. The central chain is surrounded by six other symmetry-equivalent chains; only three of them (enclosed in the dotted rectangles) are plotted to provide a simple view. The chains are propagated along the plane of the [Ni(CN)4]2− groups, see Fig. 5. (a) Possible hydrogen bonds for the tetrahedral cadmium position. The distances (Å): (1) 2.34, (2) 2.43, (3) 2.41, (4) 2.38, (5) 3.117 and (6) 2.864. (b) Possible hydrogen bonds for the octahedral cadmium position. The distances (Å): (1) 2.41, (2) 2.43, (3) 2.46, (4) 2.45, (5) 3.042, (6) 2.973. |