Ferromagnetic FeSe2 from a mixed sulphur-selenium complex of iron [Fe{(SePPh2NPPh2S)2N}3] through pyrolysis

Iron (III) thioselenoimidodiphosphinate complex, Fe{(SePPh2NPPh2S)2N}3], was synthesized from the ligand [Ph2P(S)HNP(Se)Ph2], and the complex employed as the combined source of the targeted elements (Fe and Se) to generate orthorhombic FeSe2. This was achieved by thermolysis using a quartz glass tub...

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Bibliographic Details
Published in:Heliyon 2020-04, Vol.6 (4), p.e03763-e03763, Article e03763
Main Authors: Oyetunde, Temidayo, Omorogie, Martins O., O'Brien, Paul
Format: Article
Language:English
Subjects:
Ferromagnetic
FeSe2
Inorganic chemistry
Iron (III) thioselenoimidodiphosphinate
Iron chalcogenides
Single-source precursor
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Summary:Iron (III) thioselenoimidodiphosphinate complex, Fe{(SePPh2NPPh2S)2N}3], was synthesized from the ligand [Ph2P(S)HNP(Se)Ph2], and the complex employed as the combined source of the targeted elements (Fe and Se) to generate orthorhombic FeSe2. This was achieved by thermolysis using a quartz glass tube, under reduced pressure at 500 °C during 1 h 30 min. The crystalline product was revealed by X-ray diffraction (XRD), while the morphology consisted of polygonal crystallites according to the scanning electron microscopy (SEM) studies. Superconducting quantum interference device (SQUID) measurements on the material confirmed its ferromagnetism as observed from the magnetization curve, indicated by the field-cooled and zero field-cooled conditions under a magnetic field of 100 Oe. This ferromagnetic material, FeSe2 finds useful application in producing electrical semiconductors. Inorganic chemistry, Iron (III) thioselenoimidodiphosphinate; Ferromagnetic; FeSe2; Single-source precursor; Iron chalcogenides.
ISSN:2405-8440
2405-8440
DOI:10.1016/j.heliyon.2020.e03763