N. Sardone et M. Licchelli, (4-NITROPHENYL 1,3,5,8,12-PENTAAZACYCLOTETRADEC-3-YL KETONE-N-1,N-5,N-8,N-12)-COPPER(II) DINITRATE, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2713-2716
In the crystal structure of [Cu(C16H26N6O3)] (NO3)(2), the metal ion l
ies in an elongated octahedral coordination. Only the four secondary a
mine N atoms of the macrocycle are bound to the Cu2+ centre which resi
des 0.080(1) Angstrom out of the N-4 donor plane. The coordination sph
ere is completed by two nitrate O atoms axially coordinated with diffe
rent Cu-O distances.