Selected bond length (Å) and angles (°) for complexes 1–3 with estimated standard deviations in parentheses.

	1		2		3
Distances	Co1–N1	1.984(6)	Cu1–N2	1.957(6)	Zn1–N1	1.994(6)
	Co1–N2	1.986(7)	Cu1–O1	2.510(6)	Zn1–N2	2.006(7)
	Co1–O4	1.916(4)	Cu1–O3	1.937(5)	Zn1–O4	1.937(4)
	Co1–O5	1.917(5)	Cu1–O5	1.912(5)	Zn1–O5	1.920(5)
			Cu1–O202	2.000(5)
			Cu2–O3	1.923(5)
			Cu1–Cu2	3.155(1)
			Cu2– O201	2.052(5)
Angles	O5–Co1–N1	113.1(2)	O5–Cu1–N2	91.6(2)	N1–Zn1–N2	124.0(2)
	O5–Co1–N2	96.0(2)	O5–Cu1–O1	116.3(2)	N1–Zn1–O4	94.0(2)
	O5–Co1–O4	112.9(2)	O5–Cu1–O202	151.9(2)	N1–Zn1–O5	114.0(2)
	C4–C3–C28	123.8(7)	O5–Cu1–O3	91.1(2)	N2–Zn1–O5	97.4(2)
	C10–C11–C26	123.3(6)	Cu1–O3–Cu2	109.6(2)	O4–Zn1–O5	111.4(2)
			O201–C200–O202	125.9(7)