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Synthesis, structure and magnetism of manganese and iron dipicolinates with N,N '-donor ligands
Authors: Uhrecký Robert | Svoboda Ingrid | Růžičková Zdeňka | Koman Marian | Dlháň Ľubor | Pavlik Ján | Moncoľ Ján | Boča Roman
Year: 2015
Type of publication: článek v odborném periodiku
Name of source: Inorganica Chimica Acta
Publisher name: Elsevier Science SA
Place: Lausanne
Page from-to: 134-144
Titles:
Language Name Abstract Keywords
cze Syntéza, struktura a magnetizmus dipikolinátů manganua železa s N,N'-donorovými ligandy. Nové iontové komplexy Mn(II/III), Mn(III) a Fe(II/III) o obecném vzorci [Mn-II(H2O)(2)(phen)(2)]{[Mn-III(dipik)(2)]}(2)•7H(2)O, (dmphenH)[Mn-III(dipik)(2)]•2H(2)O, (2,2'-bipyH)[Mn-III(dipik)(2)]•3H(2)O, (4,4'-bipyH)[Mn-III(dipik)(2)]•4H(2)O, [Fe-II(phen)(3)]{[Fe-III(dipik)(2)]}(2)•4.83H(2)O a [Fe-II(2,2'-bipy)(3)]{[Fe-III(dipik)(2)]}(2)•6.11H(2)O kde dipik(2-) = pyridin-2,6-dikarboxylatový anion, phen = 1,10-phenanthrolin, dmphenH = 2,9-dimethyl-1,10-phenanthroliniový kation, 2,2'-bipyH = 2-(2-pyridyl)pyridiniový kation, 4,4'-bipyH = 4-(4-pyridyl)pyridiniový kation, byly připraveny a charakterizovány pomocí XRD analýzy, IČ spektroskopie, magnetické susceptibility a magnetických měření. Zero-field štěpení bylo nalezeno u Mn(III) dipikolinátů zatímco antiferromagnetické výmenné interakce u Fe(III) dipikolinátů. Mn; Fe; dipikolinátový komplex; crystalová struktura; magnetizmus
eng Synthesis, structure and magnetism of manganese and iron dipicolinates with N,N '-donor ligands New ionic manganese(II/III), manganese(III) and iron(II/III) complexes of the formula [Mn-II(H2O)(2)(phen)(2)]{[Mn-III(dipic)(2)]}(2)center dot 7H(2)O, (dmphenH)[Mn-III(dipic)(2)]center dot 2H(2)O, (2,2'-bipyH)[Mn-III(dipic)(2)]center dot 3H(2)O, (4,4'-bipyH)[Mn-III(dipic)(2)]center dot 4H(2)O, [Fe-II(phen)(3)]{[Fe-III(dipic)(2)]}(2)center dot 4.83H(2)O and [Fe-II(2,2'-bipy)(3)]{[Fe-III(dipic)(2)]}(2)center dot 6.11H(2)O where dipic(2-) = pyridine-2,6-dicarboxylate anion, phen = 1,10-phenanthroline, dmphenH = 2,9-dimethyl-1,10-phenanthrolinium cation, 2,2'-bipyH = 2-(2-pyridyl)pyridinium cation, 4,4'-bipyH = 4-(4-pyridyl)pyridinium cation, have been prepared and characterized by the single-crystal X-ray structure analysis, infrared spectroscopy, and by magnetic susceptibility and magnetization measurements. A zero field splitting was found in the Mn(III) dipicolinates while an antiferromagnetic exchange interaction was present in the Fe(III) dipicolinates. Manganese; Iron; Dipicolinate complexes; Crystal structure; Magnetism

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