Chemistry Journal of Moldova

SYNTHESIS AND CHARACTERISATION OF NEW {Fe2CrO} HETEROTRINUCLEAR IRON-CHROMIUM CLUSTERS

Author(s):

Viorina Gorinchoy, Olesea Cuzan, Silvia Melnic, Oleg Petuhov, Sergiu Shova


Field: Inorganic and coordination chemistry
Type: Research paper
Issue: 2021 Volume 16, no.2
Pages: 66-75
Keywords:

heteronuclear μ3-oxo complex, Fe2Cr cluster, X-ray diffraction, thermal analysis.


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DOI: http://dx.doi.org/10.19261/cjm.2021.885
 
Abstract (PDF)
Graphical Abstract:
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.


 

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