Table 9. Bond lengths (Å) for the pairs (8) and (9) from the zinc model using aspherical scattering factors for the whole mol­ecule.

	Zn1—O1	Zn1—O2	Zn1—N1	Zn1—N2
Data set (8a)	1.914 (3)	1.913 (3)	2.028 (3)	2.023 (3)
Data set (8b)	1.913 (2)	1.915 (2)	2.025 (3)	2.026 (3)
Data set (9a)	1.913 (2)	1.916 (2)	2.032 (3)	2.031 (3)
Data set (9b)	1.914 (3)	1.914 (3)	2.029 (3)	2.033 (3)