Soft template synthesis of cobalt(III) chelates with 2,8-dithio-3, 7-diaza-5-oxa-nonandithioamide-1,9 and with 2,7-dithio-3,6-diazaoctadien-3, 5-dithioamide-1,8 into cobalt(III)hexacyanoferrate(II) gelatin-immobilized matrix materials |
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Authors: | Oleg V Mikhailov Albina I Khamitova Marina A Kazymova |
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Institution: | (1) Department of Analytical Chemistry, Kazan State Technological University, 420015, K. Marx Street 68, Kazan, Russia;(2) Department of Organic Chemistry, Kazan State University, Kremlin Street 18, 420008 Kazan, Russia |
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Abstract: | The complexing processes in the triple CoIII–dithiooxamide–methanal and CoIII–dithiooxamide–glyoxal systems taking place in the KCoFe(CN)6-gelatin-immobilized matrix in contact with aqueous-alkaline solutions (pH~12) containing (dithiooxamide + methanal) and (dithiooxamide + glyoxal), have been studied. Template synthesis leading to macrocyclic CoIII coordination compounds with tetradentate N,N,S,S-donor ligands-(2,8-dithio-3,7-diaza-5-oxanonandithioamide-1,9) and (2,7-dithio-3,6-diazaoctadien-3,5-dithioamide-1,8) occurs under these specific conditions. Dithiooxamide, methanal and glyoxal are the ligand synthons in these processes. |
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