caa a22 4500 46577623X CHVBK 20180323111942.0 cr unu---uuuuu 170327e19900401xx s 000 0 eng 10.1007/BF01023907 doi (NATIONALLICENCE)springer-10.1007/BF01023907 Synthesis and physico-chemical characterization of coordination compounds of 3d metals with potassium bicyclo[2.2.1]-hept-5-en-endo-2-oyl-hydroxylamine-3-carboxylate [Elektronische Daten] [Oksana Midyanko, Vasilii Galla, Vladimir Buzash, Vukadin Leovac] Summary: The ligand, potassium bicyclo[2.2.1]-hept-5-en-endo-2-oyl-hydroxylamine-3-carboxylate-monohydrate, KHL·H2O2 and its M(HL)2 complexes, [{Fe(HL)2}2SO4], K[FeL2] and K2[ML2] (M=MnII, FeII, CoII, NiII, CuII and ZnII) were prepared and characterized. For all, except the sulphate complex of iron(III), a monomeric octahedral configuration was postulated and this is realized through the coordination of oxygen atoms of the carboxylic, carbonyl and oxime group of two mono-or di-anion ligands. The dianionic form of the ligand is the result of deprotonation of the carboxylic group and mide-alcohol form of the hydroxamic group. For the sulphate-containing iron(III) complex a dimeric coordination is proposed with two monoanions of the organic ligand (the carbonyl oxygens are not coordinated) and the bridging SO4 group. The relative degree of covalency of the metal-carboxylic oxygen bond is 10.6-45.2% and increases in the order: MnII<FeII<CoII<NiII<ZnII<FeIII. The complexes have been characterized by elemental and t.g. analysis and i.r. spectra. Chapman and Hall Ltd, 1990 Midyanko Oksana Faculty of Chemistry, State University, Uzhorod, USSR aut Galla Vasilii Faculty of Chemistry, State University, Uzhorod, USSR aut Buzash Vladimir Faculty of Chemistry, State University, Uzhorod, USSR aut Leovac Vukadin Faculty of Sciences, Institute of Chemistry, I. Djuriĉića 4, 21000, Novi Sad, Yugoslavia aut Transition Metal Chemistry Springer Netherlands 15/2(1990-04-01), 156-159 0340-4285 15:2<156 1990 15 11243 https://doi.org/10.1007/BF01023907 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01023907 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Midyanko Oksana Faculty of Chemistry, State University, Uzhorod, USSR aut NATIONALLICENCE 700 1- Galla Vasilii Faculty of Chemistry, State University, Uzhorod, USSR aut NATIONALLICENCE 700 1- Buzash Vladimir Faculty of Chemistry, State University, Uzhorod, USSR aut NATIONALLICENCE 700 1- Leovac Vukadin Faculty of Sciences, Institute of Chemistry, I. Djuriĉića 4, 21000, Novi Sad, Yugoslavia aut NATIONALLICENCE 773 0- Transition Metal Chemistry Springer Netherlands 15/2(1990-04-01), 156-159 0340-4285 15:2<156 1990 15 11243 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 465776167 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer