Fine Structures of X-ray K Absorption Spectra of Copper in Various Copper Compounds

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 (CuCl 2 ), cupric chloride dihydrate (CuCl 2 ·2 H 2 O), cupric bromide (CuBr 2 ), cupric sulfate pentahydrate (CuSO 4 ·5 H 2 O), cupric nitrate trihydrate (Cu(NO 3 ) 2 ·3 H 2 O), cupric carbonate (CuCO 3 ), cupric formate tetrahydrate (Cu(HCOO) 2 ·4 H 2 O), cupric acetate monohydrate (Cu(CH 3 COO) 2 ·H 2 O), bis glycino copper monohydrate (Cu(C 2 H 4 NO 2 ) 2 ·H 2 O), bis glycino copper hydrate (Cu(C 2 H 4 NO 2 ) 2 ·H 2 O), copper phthalocyanine β-form (CuC 32 H 16 N 8 ), copper phthalocyanine α-form (CuC 32 H 16 N 8 ), 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 fo...