抄録
By using the North American Philips Diffraction Unit and Wide Range Goniometer modified to a tube spectrometer described by Coster and De Lang, the fine structures of the X-ray K absorption edges of copper in following compounds were recorded: cupric chloride (CuCl2), cupric chloride dihydrate (CuCl2·2 H2O), cupric bromide (CuBr2), cupric sulfate pentahydrate (CuSO4·5 H2O), cupric nitrate trihydrate (Cu(NO3)2·3 H2O), cupric carbonate (CuCO3), cupric formate tetrahydrate (Cu(HCOO)2·4 H2O), cupric acetate monohydrate (Cu(CH3COO)2·H2O), bis glycino copper monohydrate (Cu(C2H4NO2)2·H2O), bis glycino copper hydrate (Cu(C2H4NO2)2·H2O), copper phthalocyanine β-form (CuC32H16N8), copper phthalocyanine α-form (CuC32H16N8), cuprous chrloride (CuCl), cuprous bromide (CuBr) and cuprous iodide (CuI). The recorded curves of the fine structures of the Cu K absorption edges of these compounds, except α- and β-phthalocyanine, were found to be very similar in forms and the wavelength values of these structures also nearly coincided within experimental errors. We consider that this is due to the fact that the copper atom is surrounded by the various kinds of atoms in octahedral configuration in many cases and above exceptional case (α- and β-phthalocyanine) in planer configuration. We conclude that the fine structures of the Cu K absorption edges of these compounds are mainly determined by the immediate surroundings of the atom in question in our experimental energy region from the main edges.
