Studies on the Synthesis of bis(Benzo diaza 23-crown-7) and its Complexes with K+, Mg2+, Ca2+ and Ba2+ Perchlorates |
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| Authors: | Yasar GÖk Yusuf Atalay |
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| Institution: | (1) Department of Chemistry, Karadeniz Technical University, 61080 Trabzon, Turkey;(2) Department of Science Education, Karadeniz Technical University, Akcaabat-Trabzon, Turkey |
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| Abstract: | A novel (E,E)-dioxime (H2L) containing a 23-membered macrocyclic ionophore was synthesized from the reaction of 2,3-(4 -aminobenzo)-1,4,11,14,17-pentaoxa-6,22-dioxo-7,21-diaza-cyclotricosane-2-ene (5) prepared from 2,3-(4-nitrobenzo)-1,4,11,14,17-pentaoxa-6,22-dioxo-7,21-diazacyclotricosane-2-ene (4) and cyanogen di-N-oxide (6). H2L encapsulates and coordinates to alkaline earth metal cations via the oxygen atom to form complexes, H2L 2MX (M = K+, Mg2+, Ca2+ and Ba2+; X = ClO4-). After the complexation with alkaline earth metal cations, 1H-NMR, 13C-NMR and IR data were obtained and a comparison of these spectral data is presented. |
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| Keywords: | Synthetic macrocyclic ionophores vic-dioxime alkali and earth alkaline metal complexes NMR and IR shifts |
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