Theoretical aspects of an equilibrium study in the non-dissociating molecular solvent acetic acid
| Autor: | M.J. Schwing, F. Vierling, Jean Meullemeestre, Mustayeen A. Khan |
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| Přispěvatelé: | KHAN, Mustayeen, Université Louis Pasteur - Strasbourg I |
| Jazyk: | angličtina |
| Rok vydání: | 1990 |
| Předmět: |
010405 organic chemistry
Dimer Inorganic chemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences Copper 3. Good health 0104 chemical sciences Inorganic Chemistry Solvent Acetic acid chemistry.chemical_compound Perchlorate Monomer chemistry Bromide [CHIM] Chemical Sciences Materials Chemistry Physical chemistry [CHIM]Chemical Sciences Physical and Theoretical Chemistry Chemical equilibrium |
| Zdroj: | Polyhedron Polyhedron, 1990, 9 (21), pp.2613-2617 |
| ISSN: | 0277-5387 |
| Popis: | International audience; The bromide complexes of copper(II) were studied spectrophotometrically in acetic acid. This non-dissociating solvent presents secondary equilibria such as perchlorate ⇌ acetate and in the case of copper acetate in acetic acid, monomer ⇌ dimer. A matrix rank treatment of the optical densities identified four mononuclear bromo complexes which are formulated as Cu(OAc)Br, CuBr2, LiCuBr3 and Li2 CuBr4. The overall stability constants of these species are log β1 = 3.2, log β2 = 6.5, log β3 = 7.7 and log β4 = 7.7. The electronic spectra of the individual species, in this solvent, are reported for the first time. The d-d transition band of the tetrabromocuprate is calculated to be at 1120 nm and confirms the structure of a flattened tetrahedron. |
| Databáze: | OpenAIRE |
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