Research Article: {3,14-Dimethyl-2,6,13,17-tetra­aza­tricyclo­[,12]docosane-κ4N,N′,N′′,N′′′)bis­(nitrato-κO)copper(II)

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Jong-Ha Choi, Md Abdus Subhan, Seik Weng Ng.


The CuII atom in the title compound, [Cu(NO3)2(C20H40N4)], is N,N′,N′′,N′′′-chelated by the macrocyclic ligand: the four N atoms form a square, above and below which are located the O atoms of the nitrate ions. The metal atom exists in a tetra­gonally distorted octa­hedron, on a special position of site symmetry. One of the amino groups is hydrogen bonded to an O atom of the nitrate ion. The other amino group is hydrogen bonded to O atom of an adjacent mol­ecule, generating a supra­molecular dimeric hydrogen-bonded dinuclear aggregate.

Partial Text

For the synthesis of the cyclam, see: Choi et al. (2012 ▶). For similar copper nitrate–cyclam adducts, see: Amadei et al. (1999 ▶); Choi et al. (2001 ▶, 2006 ▶); Dong et al. (1999 ▶); Liu & Chu (2010 ▶).