Structural chemistry of amino acid complexes

Summary Complex formation between Co^II, Ni^II and Cu^II and the amino acids (cysteine, cystine and methionine) in the solid state were investigated by elemental analyses, i.r. and electronic spectra, and magnetic susceptibilities     

Synthesis and characterization of new 5-(o-substituted arylazo)-barbituric acid complexes with transition metals

Summary The synthesis of new 5-(o-substituted arylazo)barbituric acid iron(III), cobalt(II), nickel(II) and copper(II) complexes is reported. Electronic spectral data, magnetic moment and e.s.r. measurements were recorded in order to elucidate their geometry and mode of bonding (i.r. evidence). The complexes are non-electrolytes.