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Synthesis, crystal structure, spectra and magnetic properties of new manganese(III) and iron(III) dipicolinate complexes
Authors: Uhrecký Róbert | Padělková Zdeňka | Moncol Ján | Koman Marián | Dlháň Ľubor | Titiš Ján | Boča Roman
Year: 2013
Type of publication: článek v odborném periodiku
Name of source: Polyhedron
Publisher name: Pergamon-Elsevier Science Ltd.
Place: Oxford
Page from-to: 9-17
Titles:
Language Name Abstract Keywords
cze Syntéza, krystalová struktura, spektrální a magnetické vlastnosti nového manganitého a železitého dipikolinátového komplexu Čtyři iontové manganité a železité dipikolinátové komplexy o vzorci (Hpia)[Fe-III(dipic)(2)] 3H(2)O, (Hpia)[Mn-III(dipic)(2)] (H(2)dipic) 6H(2)O, (Hinia)]Fe-III(dipic)(2)] 3H(2)O a (Hinia)[Mn-III(dipic)(2)] 3H(2)O, kde dipic(2-) = pyridin-2,6-dikarboxylatový aniont (dipikolinátový aniont), H(2)dipic = pyridin-2,6-dikarboxylová kyselina, Hpia(+) = 2-karboxamidepyridin (pikolinamid) kationt a Hinia(+) = 4-karboxamidepyridin (isonikotinamid) byly připraveny a charakterizovány monokrystalickou rentgenovou strukturní analýzou a SQUID ? magnetickým měřením. krystalová struktura; magnetické vlastnosti; nového; mangan; železo; dipikolinátový komplex
eng Synthesis, crystal structure, spectra and magnetic properties of new manganese(III) and iron(III) dipicolinate complexes The four ionic manganese(III) and iron(III) dipicolinate complexes of formula (Hpia)[Fe-III(dipic)(2)]center dot 3H(2)O, (Hpia)[Mn-III(dipic)(2)]center dot(H(2)dipic)center dot 6H(2)O, (Hinia)]Fe-III(dipic)(2)]center dot 3H(2)O and (Hinia)[Mn-III(dipic)(2)]center dot 3H(2)O, where dipic(2-) = pyridine-2,6-dicarboxylate anion (dipicolinate anion), H(2)dipic = pyridine-2,6-dicarboxylic acid, Hpia(+) = 2-carboxamidepyridinium (picolinamidium) cation and Hinia(+) = 4-carboxamidepyridinium (isonicotinamidium) cation have been prepared and characterized by the single-crystal X-ray structure analysis. The SQUID-magnetic data were fitted to a zero-field splitting model revealing a slight magnetic anisotropy: vertical bar D vertical bar/hc similar to 3 cm(-1) for Mn(III). manganese(III); iron(III); dipicolinate complexes; crystal structure; hydrogen bonds; magnetic properties

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