抄録
Spectrophotometric behaviors of copper-, nickel-, and cobalt-complexes of D-glucosamine (I) were investigated in visible region. It was found that three metal ions formed a complex having a 1 : 1 ratio of I to a metal ion respectively. Equilibrium and stability constants were also determined by the application of McConnel-Davidson's method. Both stability constants of copper- and cobalt-complexes were of the same magntitude, but that of nickel-complex was lower than the other. A possibility of the presence of the hydroxo complex in the complex formation between I and metal ions was also ascertained by the analysis of the spectra at near ultraviolet region. Futhermore, the preparation of copper complex in solid state was carried out, and a 1 : 1 complex was obtained. From the analysis of the prepared complex, GCu(OH)Cl seemed to be the most probable experimental formula for the complex.
