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Al, N, C and H NMR spectra and negative-ion electrospray mass spectra of the 2:1 aluminium(III) complexes of azo dyes derived from anthranilic acid |
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| Affiliation: | a Research Institute for Organic Syntheses, CZ-532 18 Pardubice-Rybitví, Czech Republic b Department of General and Inorganic Chemistry, University of Pardubice, CZ-532 10 Pardubice, Czech Republic c Department of Analytical Chemistry, University of Pardubice, CZ-532 10 Pardubice, Czech Republic |
| Abstract: | The 27Al, 15N, 13C and 1H NMR spectra in DMSO and mass spectra of 2:1 aluminium(III) complexes (1b–4b) derived from anthranilic acid azo coupling products with 4-tert.butylphenol (1a), 2-naphthol (2a) acetoacetanilide (3a) 3-methyl-1-phenylpyrazol-5-one (4a) were measured and analysed. It was found that the aluminium atom was six-coordinated, being bound to two oxygens and the nitrogen originating from anthranilic acid. |
| Keywords: | Aluminium(III)–azo dye complexes 27Al NMR 15N NMR 13C NMR 1H NMR Negative-ion electrospray mass spectra |
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