Synthesis, crystal structure and characterizations of iron(III) and copper(II) complexes with the hydrazone ligand obtained from 2-formyl-pyridine and Girard's T reagent
| Autor: | Mihail D. Revenco, Rodolphe Clérac, Paulina Bourosh, Oleg Palamarciuc, Yurii A. Simonov, Janusz Lipkowski |
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| Přispěvatelé: | State University of Moldova, University of Moldova, Centre de recherches Paul Pascal (CRPP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1, Institute of Applied Physics, Academy of Sciences of Moldova, Academy of Sciences of Moldova (ASM), Institute of Physical Chemistry, Polish Academy of Sciences, Polska Akademia Nauk = Polish Academy of Sciences (PAN) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Coordination sphere
Inorganic chemistry X-ray crystal structures Hydrazone Crystal structure 010402 general chemistry 01 natural sciences Inorganic Chemistry chemistry.chemical_compound Deprotonation Copper(II) complex Pyridine Magnetic properties Materials Chemistry Iron(III) complex Physical and Theoretical Chemistry chemistry.chemical_classification 010405 organic chemistry Ligand 3. Good health 0104 chemical sciences Crystallography chemistry Zwitterion Reagent Girard's T reagent |
| Zdroj: | Inorganica Chimica Acta Inorganica Chimica Acta, Elsevier, 2010, 363, pp. 2561-2566. ⟨10.1016/j.ica.2010.04.027⟩ |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/j.ica.2010.04.027⟩ |
| Popis: | 6 pages; International audience; The condensation of 2-formyl-pyridine with Girard's T reagent yields a new hydrazone in the form of an ammonium quaternary salt: [H(2-PyGT)]Cl. This tridentate ligand is readily soluble in water and reacts with iron(III) or copper(II) chlorides to give [Fe(2-PyGT)Cl3] (1) or [Cu(2-PyGT)Cl2]-(H2O) (2) complexes, respectively. Single-crystal X-ray studies in 1 and 2 reveal that the coordination reaction gives rise to the deprotonation of the organic ligand that is coordinated using its NNO donor atoms in the form of a zwitterion species. The coordination spheres around the transition metal ions in complexes 1 and 2 are quite different. In 1, the iron site adopts a distorted octahedral coordination sphere, while the Cu(II) ions in 2 show a distorted tetragonal-pyramid geometry. As expected, the magnetic properties of these compounds reveal only weak antiferromagnetic interaction between spin carriers. |
| Databáze: | OpenAIRE |
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