Table 1.

Selected bond lengths (Å) and angles (°) for compounds 1, 2 and 3.

1
Cu1–N1	2.023(2)	O1–Cu1–O2	93.34(7)
Cu1–N2	2.295(2)	O2–Cu1–N1	88.45(7)
Cu1–O1	1.899(2)	N1–Cu1–N2	77.57(8)
Cu1–O2	1.924(2)	N1–Cu1–O4	86.97(7)
Cu1–O4	1.973(2)	O4–Cu1–O1	88.19(7)
2
Cu1–N1	2.000(3)	O2–Cu1–N1	90.80(12)
Cu1–N2	2.257(3)	O2–Cu1–N2	99.41(11)
Cu1–O1	1.991(2)	N1–Cu1–N2	79.62(13)
Cu1–O2	1.909(3)	O1–Cu1–O1 i	76.37(12)
Cu1–O1 i	1.919(2)	Cu1–O1 i–Cu1 i	100.51(11)
Cu1–Cu1 i	3.007(1)	O2–Cu1–O1	152.18(11)
3
Cu1–N1	2.004(3)	O1–Cu1–O2	90.58(11)
Cu1–N2	2.016(3)	O1–Cu1–N1	145.46(12)
Cu2–N3	2.023(4)	O2–Cu1–N1	99.86(13)
Cu2–N4	2.301(4)	N1–Cu1–N2	83.30(13)
Cu1–O1	1.934(2)	O6–Cu2–O5	92.60(11)
Cu1–O2	1.967(3)	O7–Cu2–N4	81.46(13)
Cu1–O3	2.471(3)	N3–Cu2–N4	77.68(15)
Cu1–O5	2.744(2)	O2–Cu1–N2	147.57(12)
Cu2–O5	1.949(2)	O1–Cu1–N2	105.08(12)
Cu2–O6	1.896(3)	O7–Cu2–N4	81.46(13)
Cu2–O7	1.966(3)	O7–Cu2–N3	89.59(12)
Cu2–O8	3.167(2)	O6–Cu2–N4	111.36(11)

Note: Symmetry code: (i) −x, y, 1/2−z.