Table 1. Selected bond lengths (Å).

Zn1—O1	2.064 (3)
Zn1—O2	2.073 (3)
Zn1—O3	2.042 (6)
Zn1—N1	2.180 (5)
Zn1—N4	2.193 (5)
Zn1—N5i	2.179 (5)

Symmetry code: (i) .