Heterotrinuclear [Fe2IIINiII]-μ3-oxo-cluster based on salicylic acid. synthesis, structure and physico-chemical properties  
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GORINCHOY, Viorina; ZUBAREVA, Vera; MELNIC, Elena; KRAVTSOV, Viktor. Heterotrinuclear [Fe2IIINiII]-μ3-oxo-cluster based on salicylic acid. synthesis, structure and physico-chemical properties  . In: Chemistry Journal of Moldova. 2018, nr. 1(13), pp. 46-53. ISSN 1857-1727.
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Chemistry Journal of Moldova
Numărul 1(13) / 2018 / ISSN 1857-1727 /ISSNe 2345-1688

Heterotrinuclear [Fe2IIINiII]-μ3-oxo-cluster based on salicylic acid. synthesis, structure and physico-chemical properties  


CZU: 546
DOI: 10.19261/cjm.2018.483
Pag. 46-53

Gorinchoy Viorina1, Zubareva Vera1, Melnic Elena2, Kravtsov Viktor2
 
1 Institute of Chemistry of the Academy of Sciences of Moldova,
2 Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 7 iulie 2018


Rezumat

The reaction of iron nitrate and nickel chloride with ammonium salicylate in the presence of methanol and dimethylformamide (DMF) results in the formation of a new trinuclear heterometallic complex [hexa- μ2-salicylato- μ3-oxo-(methanol) (dimethylformamide) aquadiiron(III) nickel(II)] methanol dimethylformamide. The complex crystallizes in the monoclinic space group C2/c and was structurally characterized by single crystal X-ray diffraction as [Fe2NiO(SalH)6(CH3OH)(DMF)(H2O)]·DMF·CH3OH, where SalH are monodeprotonated salicylic acid ions. The IR and Mössbauer spectra and thermal properties were studied. The parameters of the Mössbauer spectrum (δFe= 0.45 mm/s, ΔEQ= 1.086 mm/s, 300 K) suggest the high-spin state of the Fe3+ ions (S= 5/2).

Cuvinte-cheie
heterotrinuclear μ3-oxo complex, IR analysis, Mössbauer spectrum, TG data., X-ray