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- W1966181646 abstract "Abstract 3 d metal perchlorate complexes with 2-benzylpyridine N-oxide(L) were prepared and characterized by means of spectral, magnetic and conductance studies. Interaction of ligand and salt in ethanol-triethyl orthoformate at a 4:1 or a 6:1 molar ratio led to the formation of the following complexes: M 2+ perchlorates yielded solid complexes of the types [ML 5 ](ClO 4 ) 2 (M = Mn, Fe, Co, Ni, Zn) and [CuL 4 ](ClO 4 ) 2 , regardless of the ligand to metal ratio employed. Cr 3+ and Fe 3+ perchlorates formed oily or gummy precipitates, at the 4:1 L to salt ratio; although these products were not sufficiently pure for characterization studies, it was established that they involve between four and five L molecules per metal ion (analytical results). A complex of the type [FeL 6 ](ClO 4 ) 3 was obtained in small yields, when L and Fe(ClO 4 ) 3 were allowed to interact at a 6:1 molar ratio. The benzyl substituent of the ligand obviously introduces significant steric hindrance during coordination, as demonstrated by the fact that 5:1 complexes of L with M 2+ (M = Mn, Fe, Co, Ni, Zn) perchlorates are readily obtained, whilst Cr 3+ and Fe 3+ perchlorates also yield complex species clearly involving L to M 3+ ratios of less than six; furthermore, the isolation of a 6:1 L to Fe 3+ cationic complex is difficult, as suggested by poor yields." @default.
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- W1966181646 date "1979-01-01" @default.
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- W1966181646 title "2-benzylpyridine N-oxide complexes with transition metal perchlorates[1]" @default.
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- W1966181646 doi "https://doi.org/10.1016/0022-1902(79)80134-7" @default.
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