Аннотация

Abstract: Coordination compounds of iron(II) and nickel(II) with 3-amino-4-ethoxycarbonylpyrazole (L), FeL2A2 (A = Cl (I), (II)), [FeL2(NCS)2(H2O)2] (III), and NiL2Br2 (IV), are synthesized. The compounds are studied by X-ray diffraction analysis, IR spectroscopy, and UV spectroscopy (diffuse reflectance spectra). A single crystal is observed for complex III, and its crystal structure is determined by X-ray structure analysis (СIF file CCDC no. 1857220). It is shown that L coordinates to the metal via the monodentate mode by the N(2) atom of the pyrazole cycle. The study of the temperature dependence µeff(Т) in a temperature range of 2–300 K shows exchange interactions of the antiferro- or ferromagnetic character between the M2+ ions in the complexes. The type of exchange interactions depends on the composition of the compound.

Язык оригиналаанглийский
Страницы (с-по)347-355
Число страниц9
ЖурналRussian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
Том45
Номер выпуска5
DOI
СостояниеОпубликовано - 1 мая 2019

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