[(6R,7S,8S,14R)-(-)-α-isosparteine-κ2N,N′]-bis(nitrito-κ2O,O′)copper(II)

In the title complex, [Cu(NO2)(2)(alpha-C15H26N2)], chiral (6R,7S,8S,14R)-(-)-alpha-isosparteine acts as a bidentate ligand, with two nitrite ligands occupying the remaining coordination sites as eta(2)-chelating groups, producing a pseudo-octahedral coordination complex. The molecule of the title complex possesses a crystallographic twofold axis of rotation along a line through the central C atom of the (-)-alpha-isosparteine ligand and the Cu-II atom. However, as a result of the Jahn-Teller effect operating on the d(9) configuration of the copper(II) ion, each nitrite ligand coordinates asymmetrically to the copper(II) centre in a bidentate fashion.