Controlling Solvate Formation of a Schiff Base by Combining Mechanochemistry with Solution Synthesis (CROSBI ID 187521)
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Podaci o odgovornosti
Stilinović, Vladimir ; Cinčić, Dominik ; Zbačnik, Marija ; Kaitner, Branko
engleski
Controlling Solvate Formation of a Schiff Base by Combining Mechanochemistry with Solution Synthesis
A Schiff base dicarboxylic acid (1) was prepared by condensation of 2-hydroxy-1-naphthaldehyde with 5-aminoisophthalic acid. Its solvates with pyridine (2a and 2b) and dimethylformamide (3) were prepared by liquid-assisted grinding and by conventional solvent-based methods. All products were characterised by FT-IR spectroscopy, thermogravimetric analysis and differential scanning calorimetry. The structures of 1, 2b and 3 were determined by single crystal X-ray diffraction. 1 was found to be a pure Schiff base, 2b a pyridine solvate and 3 a dimethylformamide solvate monohydrate. In all three structures, the Schiff base molecule appears to be present as the keto-amine tautomer.
Schiff base; solvates; dicarboxylic acid; mechanochemistry; tautomerism
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