Open AccessSynthesis and Characterisation of New {Fe2CrO} Heterotrinuclear Iron-chromium Clusters
Author(s) -
Viorina Gorinchoy,
Olesea Cuzan,
S. Melnic,
Oleg Petuhov,
Sergiu Shova
Publication year - 2021
Publication title -
chemistry journal of moldova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.275
H-Index - 5
eISSN - 2345-1688
pISSN - 1857-1727
DOI - 10.19261/cjm.2021.885
Subject(s) - chemistry , chromium , oxidizing agent , heteronuclear molecule , mössbauer spectroscopy , atomic absorption spectroscopy , thermal stability , furan , elemental analysis , inorganic chemistry , infrared spectroscopy , nuclear chemistry , crystallography , stereochemistry , organic chemistry , nuclear magnetic resonance spectroscopy , physics , quantum mechanics
Two new μ3-oxo trinuclear heterometallic Fe2IIICrIII complexes with furan-2-carboxylic and salicylic acids with the composition: [Fe2CrO(C4H3OCOO)6(CH3OH)3]NO3·0.5CH3OH and [Fe2CrO(C6H4(OH)COO)7(CH3OH)2]·2DMA were synthesized starting from iron(III) and chromium(III) salts mixture. The complexes structures were confirmed by elemental analysis, IR, Mössbauer spectroscopies, and X-ray analysis. The atomic absorption spectroscopy confirmed that the iron: chromium ratio is 2:1. The thermal properties of both heteronuclear complexes have been investigated in oxidizing and inert atmospheres revealing the stability of the trinuclear core up to 170 and 220°C, respectively.