Coordination chemistry of scandium. VIII[1] detection of complex formation in solution by 45Sc NMR spectroscopy
| Autor: | Azam Rahimi, Dennis J. Olszanski, Gordon A. Melson |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Chemical shift Inorganic chemistry General Engineering chemistry.chemical_element Nuclear magnetic resonance spectroscopy Coordination complex NMR spectra database chemistry.chemical_compound symbols.namesake chemistry symbols Scandium Raman spectroscopy Tetrahydrofuran |
| Zdroj: | Spectrochimica Acta Part A: Molecular Spectroscopy. 33:301-309 |
| ISSN: | 0584-8539 |
| DOI: | 10.1016/0584-8539(77)80034-2 |
| Popis: | 45Sc nmr spectra of aqueous solutions of ScCl3, ScBr3, ScI3, Sc(ClO4)3, Sc(NO3)3 and Sc2(SO4)3 are reported. The concentration dependence of the chemical shift and the line width have been studied and attempts made to relate these dependences to chemical species in solution. Raman shifts and 45Sc nmr spectra have been obtained for aqueous solutions of ScCl3 containing 0–12 M added HCl. 45Sc nmr spectra of tetrahydrofuran solutions of ScCl3, ScCl3·4H2O, ScBr3, ScBr3·4H2O, Sc(NO3)3, Sc(NO3)3·3H2O and Sc(ClO4)3·6H2O are also reported. A study of 45Sc chemical shifts in water-tetrahydrofuran mixtures has demonstrated the strong solvating power of water towards the scandium (III) ion. The complexation of scandium (III) with some macrocyclic polyether ligands in aqueous solution has been investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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