Intramolecular and intermolecular OHO hydrogen bond in some nickel(II) complexes with tridentate amino–oxime ligands
| Autor: | Giorgio Nardin, Giovanni Tauzher, Renata Dreos, Lucio Randaccio, Alessandro Felluga, Mauro Stener |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Hydrogen bond
Chemistry Stereochemistry Picrate Intermolecular force chemistry.chemical_element Oxime Inorganic Chemistry Metal Nickel chemistry.chemical_compound Crystallography Intramolecular force visual_art Materials Chemistry visual_art.visual_art_medium Chelation Physical and Theoretical Chemistry |
| Zdroj: | Inorganica Chimica Acta. 355:361-367 |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/s0020-1693(03)00364-5 |
| Popis: | The 3-[(2-pyridyl)methylamino]-butan-2-one oxime (H-LNH-py) tridentate ligand forms with Ni(II) the pseudo-octahedral complex [Ni(II)(H-LNH-py)(LNH-py)]ClO4 where the coordination of two ligands to the metal atom leads to the formation of an equatorial chelating system containing an intramolecular hydrogen bond (OHO) involving the oxime oxygen atoms. In acidic medium the [Ni(II)(H-LNH-py)2](ClO4)2, complex is formed, deriving of the precedent by addition of a proton to the OHO bridge. A third complex, [Ni(II)(H-LNH-py)2(C6H2N3O7)](C6H2N3O7), was isolated, as picrate, containing a double intermolecular hydrogen bond with a picrate ion. X-ray analysis of these compounds allows defining in all three cases the geometry of the hydrogen bonding fragments. |
| Databáze: | OpenAIRE |
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