Some studies in inorganic complexes. XXIV. Copper(II) complexes of 2-acetamidopyridine and 2-methylpyridine-6-carboxylic acid

Abstract

Complexes of copper(II) with 2-acetamidopyridine (acpy) and with 2- methyl-pyridine-6-carboxylic acid (mepiac-H) have been prepared. The compounds studied included [Cu(acpy)₂Cl₂], [Cu(acpy)₂Br₂], [Cu(acpy)₂(NCS)₂], [Cu(acpy)₂(NO₃)₂], [Cu(acpy)₂(H₂O)ClO₄]ClO₄,H₂O, [Cu(mepiac)(mepiac-H)Cl], [Cu(mepiac)(mepiac-H)-Br], [Cu(mepiac)(mepiac-H)BrH₂O], and [Cu(mepiac)₂H₂O]. The magnetic properties, conductances, reflectance and solution spectra, as well as infrared spectra, are in agreement with the copper(II) complexes of acpy being six-coordinate and those of mepiac-H having a five- coordinate structure.