Table 1. Selected geometric parameters (Å, °).

Co1—N1	1.959 (4)	Co1—N2	1.974 (4)
Co1—N1i	1.959 (4)	Co1—N3i	1.980 (4)
Co1—N2i	1.974 (4)	Co1—N3	1.980 (4)
N1—Co1—N1i	92.2 (3)	N2i—Co1—N3i	92.64 (19)
N1—Co1—N2i	90.61 (19)	N2—Co1—N3i	91.62 (19)
N1i—Co1—N2i	85.4 (2)	N1—Co1—N3	175.8 (2)
N1—Co1—N2	85.4 (2)	N1i—Co1—N3	91.58 (17)
N1i—Co1—N2	90.61 (19)	N2i—Co1—N3	91.62 (19)
N2i—Co1—N2	174.2 (3)	N2—Co1—N3	92.64 (19)
N1—Co1—N3i	91.58 (17)	N3i—Co1—N3	84.7 (3)
N1i—Co1—N3i	175.8 (2)

Symmetry code: (i) .