|
Figure 2 (a) Mixed ball-and-stick and polyhedral representation of the coordination environment of the Cu(II) cations and (b) the metallic chain [(Cu2Si4O11)n]2− running along the a direction of the unit cell. (c) Schematic representation of the linear Si—O—Si bond connecting adjacent Si1 centres via the O1 atom. [Symmetry codes: (i) 2-x, -y, 2-z; (ii) x, -1 + y, z; (iii) 1-x, -y, 2-z; (iv) 2-x, -y, 1-z]. |