The synthesis and characterization of a new (E,E)-dioxime and its mono and heterotrinuclear complexes containing dioxadithiadiazamacrobicyclic moieties |
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Authors: | Zekeriya Biyiklioğlu Gülsev Dilber Halit Kantekin |
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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 (2Z,3Z)-1,4,7,8,15,16-hexahydro-9,14-(ethanothioethanothioethano)quinoxalino6,7-e] 4,7,1,10]benzodioxadiazacyclododecine-2,3,19,26-tetrone2,3-dioxime
(H2L) has been synthesized by reacting cyanogen-di-N-oxide with 2,3-diamino-6,7,14,15-tetrahydro-8,13-(ethanothioethanothioethano)dibenzob,h]
1,4,7,10]dioxadiazacyclodecine-17,24-dione (6). Mononuclear complexes (8, 9) of this ligand have been synthesized by reacting the vic-dioxime (H2L) with NiCl2 · 6H2O and COCl2 · 6H2O respectively. The BF
2
+
capped cobalt(III) complex (10) of the new (E,E) vic-dioxime has been synthesized by using as precursor a hydrogen-bridged mononuclear cobalt(III) complex (9). The heterotrinuclear complex (11) has been prepared by reacting one mononuclear cobalt(III) complex (10) with Cu(MeCN)4]PF6. The new compounds were characterized by a combination of elemental analysis, 1H- and 13C-n.m.r, i.r. and m.s. spectral data. |
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