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A new Schiff base of gossypol with 2-(aminomethyl)-18-crown-6 (GSCC) was shown to be capable of complexation of monovalent cations. This process of complex formation was studied by ESI mass spectrometry, 1 H NMR and FT-IR spectroscopy as well as by PM5 semiempirical method. It was found that this Schiff base can form 1:2 complexes with all monovalent and 1:4 complexes only with Li + ...
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