Crystal structure of {2-methyl-2-[(pyridin-2-yl-meth-yl)amino]-propan-1-ol-κ ,',}bis-(nitrato-κ)copper(II) from synchrotron data.

The title compound, [Cu(NO)(CHNO)], has been synthesized and characterized by synchrotron single-crystal diffraction at 100 K. The Cu ion has a distorted square-pyramidal coordination geometry with two N and one O atoms of the CHNO ligand and one nitrate anion in the equatorial plane and another nitrate anion at the axial position. The equatorial Cu-N and Cu-O bond lengths are in the range 1.9608 (14)-2.0861 (15) Å, which are shorter than the axial Cu-O bond length [2.1259 (16) Å]. In the crystal, mol-ecules are linked inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, forming a sheet structure parallel to the plane. The sheets are further linked through a face-to-face π-π inter-action [centroid-centroid distance = 3.994 (1) Å]. Weak inter-molecular C-H⋯O inter-actions are also observed in the sheet and between adjacent sheets.