Syntheses, structures, and geometric and spectral characteristics of the hexachlorodicuprate(II) complexes with the protonated 4-azafluoren-9-one derivatives: The crystal and molecular structures of bis(4-azafluoren-9-onium) hexachlorodiaquadicuprate(II) dihydrate

Three complexes containing hexachlorodicuprate(II) anions and protonated 4-azafluorenone derivatives as counterions were isolated. The crystal and molecular structures of 4-azafluoren-9-one, (HL1) 2[(CuCl2(H2O))2(μ-Cl) 2] • 2H2O (L1), and spectral characteristics of the complexes were determined. Relationships relating the degree of distortion of the crystal structure of the hexachlorodicuprate(II) anions to the spectral characteristics of the compounds were proposed on the basis of the experimental and published data. © 2009 Pleiades Publishing, Ltd