Bis{2-hydroxy-N-[2-(2-pyridyl)ethyl]benzamide}copper(I) tetrafluoridoborate

The title complex, [Cu(C(14)H(14)N(2)O(2))2]BF(4), is a monomeric copper(I)species with linear two-coordinate geometry around the Cu(I) atom. The asymmetric unit contains two half-cations that sit on crystallographic twofold rotation axes. The selected crystal was non-merohedrally twinned by a twofold rotation about an axis normal to the (100) family of planes. The ratio of the twin components refined to 0.4123 (6). Two 2-hydroxy-N-[2-(2-pyridyl)ethyl]benzamide ligands coordinate to each Cu(I) atom via the pyridyl N atom. Intramolecular hydrogen bonding between the phenol OH groups and the amide O atoms imparts rigidity and planarity to the non-coordinating end of the ligand. The cationic complex is linked to the BF(4)(-) anions via hydrogen bonding between the amide NH groups in the cations and BF(4)(-) anions.