The Synthesis and Characterization of a Novel vic-Dioxime and its Mononuclear Complexes Bearing an 18-Membered
2
O
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S
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Macro-Cycle and Their Characteristics as Extractants for Transition Metal Ions |
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Authors: | Halit Kantekin Ümmühan Ocak Yaşar Gök Irfan Acar |
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Institution: | 1. Department of Chemistry, Karadeniz Technical University, 61080, Trabzon, Turkey
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Abstract: | A new (E, E)-dioxime (H 2 L) containing a diazadioxadithia macrocyclic moieties has been synthesized by reaction of an aromatic primary amine with cyanogendi-N-dioxide. The BF2 +-capped Ni2+ mononuclear complex of this new oxime has been synthesized using a precursor hydrogen-bridged mononuclear Ni2+ complex. The solvent extraction of transition metal cations by (3) and (6) with picrate anion into chloroform has been studied at 25 °C and UV-visible spectroscopy. The extractability and selectivity of transition metal picrates, (Pb2+, Ni2+, Co2+, Cd2+, Zn2+, Cu2+, Ag+) has been evaluated. The structures of new compounds are identified by using elemental analysis, 1H and 13C-NMR, IR and MS spectral data. |
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