Synthesis, characterization of a novel calixarene having dipyridyl pendants and study of its complexes with Cu(II) and Co(II)
| Autor: | Giuseppe Arena, Giuseppe Spoto, Annalinda Contino, Elisa Longo, Domenico Sciotto, Carmelo Sgarlata |
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| Rok vydání: | 2003 |
| Předmět: |
calixarenes
cobalt(II) Chemistry Ligand Metal ions in aqueous solution Organic Chemistry Inorganic chemistry spectrophotometric titrations Biochemistry Characterization (materials science) chemistry.chemical_compound calixarenes spectrophotometric titrations copper(II) cobalt(II) Drug Discovery Calixarene Polymer chemistry Titration copper(II) Acetonitrile Stoichiometry |
| Zdroj: | Tetrahedron Letters. 44:5415-5418 |
| ISSN: | 0040-4039 |
| DOI: | 10.1016/s0040-4039(03)01319-4 |
| Popis: | Two dipyridyl pendants were attached to the 1,3 positions of a calix[4]arene, with the purpose of having a ligand able to complex Cu(II) and Co(II). Indeed, the new ligand, fixed in its 1,3-alternate conformation, forms stable complexes with both Co(II) and Cu(II), as shown by UV–vis titrations carried out in acetonitrile. However, the data analysis clearly shows that the ligand forms with the two metal ions complexes having different stoichiometries. |
| Databáze: | OpenAIRE |
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