Figure 2.

(a) Viewing of the coordination environments of Zn(II) ion in 2. (b) The 2D layer structure of 2. (c) The 4-connected sql-type tetragonal plane net for 2. (d) The interdigitated 3D supramolecular framework of 2.

(a) Viewing of the coordination environments of Zn(II) ion in 2. (b) The 2D layer structure of 2. (c) The 4-connected sql-type tetragonal plane net for 2. (d) The interdigitated 3D supramolecular framework of 2.