Synthesis, Structural Studies, and Magnetic Properties of a New Mixed-Valence Diphosphate: Zn2+5Fe3+2(P2O7)4

Lamsaf H., Elghadraoui E. H., Fausto R., Oulmekki A., Costa B. F. O.

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, vol.33, no.4, pp.1007-1012, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 4
  • Publication Date: 2020
  • Doi Number: 10.1007/s10948-019-05263-w
  • Journal Name: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1007-1012
  • Istanbul Kültür University Affiliated: Yes

Abstract

A new mixed-valence diphosphate, Zn52+Fe23+(P2O7)(4), was synthesized from (Fe5Fe2III)-Fe-II(P2O7)(4) via the "solid way" route, by substitution of Fe-II by Zn-II. The obtained X-ray data confirmed the crystallization of the compound in the C222(1) symmetry space group (orthorhombic). Magnetic measurements were performed showing that, at room temperature, the compound is paramagnetic and that the Neel temperature is 15.44(20) K. The compound was also investigated by infrared and Raman spectroscopies, in particular to characterize the (P2O7)(4-) and M-O vibrations.