Metal chelates of heterocyclic nitrogen-containing ketones. XIX. Some acetato- and nitrato-copper(II) complexes of phenyl-2 picolyl ketone hydrazone and phenyl-2-picolyl ketone phenyl hydrazone
| Autor: | Ali El-Dissouky, Ahmed M. Hindawey, Amina Abdel-Salam |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
chemistry.chemical_classification
Denticity Ketone Ligand Inorganic chemistry chemistry.chemical_element Molar conductivity Hydrazone Medicinal chemistry Copper Inorganic Chemistry chemistry.chemical_compound Trigonal bipyramidal molecular geometry chemistry Pyridine Materials Chemistry Physical and Theoretical Chemistry |
| Zdroj: | Inorganica Chimica Acta. 118:109-114 |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/s0020-1693(00)81370-5 |
| Popis: | Complexes of phenyl-2-picolyl ketone hydrazone and phenyl-2-picolyl ketone phenyl hydrazone, PPKhy and PPKPhy, respectively, with hydrated copper(II) acetate or hydrated copper(II) nitrate in mole ratio 1:1 or 1:2, metal:ligand, have been prepared. Various physical techniques including molar conductivity, spectral (IR, electronic, ESR and 1H NMR) and magnetic measurements were used to study the nature and structure of the prepared complexes. The data showed that complexes [CuLX2], X = OAc or ONO2 and L = PPKhy or PPKPhy, are trigonal bipyramidal, [Cu(PPKPhy)2] (NO3)2 is square planar and [Cu(PPKhy)2](NO3)2 is tetrahedral. The acetate and nitrate groups in the mono- ligand complexes are found to be mono- and bidentate but in the ionized sphere in the bis-ligand complexes. The ligands are present in associated form in solution via intermolecular hydrogen bond and act as neutral bidentate coordinated to the copper(II) via the pyridine and azomethine nitrogen atoms. |
| Databáze: | OpenAIRE |
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