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- W1977338267 abstract "Condensation of aminoguanidine with 2-formylpyridine, 2-benzoylpyridine and 2,6-diacetylpyridine results in the aminoguanidones, HFogu, HBzgu and H 2 2,6Acgu 2 , respectively. Reaction of the heterocyclic aminoguanidone in a mixture of hydrochloric acid–ethanol with copper(II) chloride produces the following mixed salts: [H 3 Fogu][CuCl 4 ], ( 1 ), [H 3 Bzgu] 2 [CuCl 4 ]Cl 2 ·H 2 O, ( 2 ), and [H 5 2,6Acgu 2 ][CuCl 4 ]Cl·H 2 O, ( 3 ). Their crystal structures, as well as their ESR and UV spectra, have been obtained. The influence on the geometry of the [CuCl 4 ] 2− of the NH⋯ClCu hydrogen bonds, in the context of charged compensation hypothesis, has been evaluated. The synthesis, crystal structure, ESR and UV spectra of three copper(II) halide anions with aminoguanidonium cations derived from 2-formylpyridine, 2-benzoylpyridine and 2,6-diacetylpyridine is reported. [CuCl 4 ] 2− derivatives were obtained. Extended hydrogen bonding networks are present in all of them. The charge compensation approach fails to predict the geometry of the [CuCl 4 ] 2− ions." @default.
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- W1977338267 date "2002-03-01" @default.
- W1977338267 modified "2023-10-18" @default.
- W1977338267 title "Tetrachlorocuprate(II) salts of heterocyclic aminoguanidonium (guanylhydrazonium) ions" @default.
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- W1977338267 doi "https://doi.org/10.1016/s0277-5387(01)01006-3" @default.
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