Copper(II) Complexes with Schiff Base Ligands. Synthesis of Some Copper(II) Complexes with Ligands Derived from the Reaction of Pyridine-2-Carboxaldehydes and Aromatic Amines
Inorganica Chimica Acta
A series of copper(II) complexes with ligands derived from the Schiff base reaction of pyridine- 2-carboxaldehyde or 6-methylpyridine-2-carboxal- dehyde with aniline, benzylamine or 2-phenylethylamine has been prepared. These complexes have been characterized by spectroscopic methods. The electronic spectrum of bis(N-phenyl-(6-methyl-2- pyridyl)methylimine) copper(II) tetrafluoroborate has an absorption band at a much higher energy and molar absorptivity than the other complexes. The appearance of this band indicates a major change in geometry caused by the combined steric demands of the 6-methyl group on the pyridine aromatic ring and the rigid aromatic ring of the phenyl group on the imine nitrogen atom.
Johnson, David W.; Mayer, Helen K.; Minard, Joletta P.; Banaticla, Jocelyn; and Miller, Charles, "Copper(II) Complexes with Schiff Base Ligands. Synthesis of Some Copper(II) Complexes with Ligands Derived from the Reaction of Pyridine-2-Carboxaldehydes and Aromatic Amines" (1988). Chemistry Faculty Publications. 33.