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author:

Li, Ningxia (Li, Ningxia.) [1] | Luo, Qi (Luo, Qi.) [2] | Cui, Meiyan (Cui, Meiyan.) [3] | Zhao, Zhiying (Zhao, Zhiying.) [4] | He, Zhangzhen (He, Zhangzhen.) [5]

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Abstract:

Two new silver-iron based phosphates AgFe2(PO4)2F(H2O)2 (1) with monoclinic P21/n and Ag3Fe2(PO4)(HPO4)3 (2) with triclinic P-1 were synthesized by a conventional hydrothermal method, featuring a dimer structure and a twisted honeycomb-like lattice, respectively. XPS and BVS (Bond Valence Sum) calculations indicated only Fe3+ ions in both compounds, while FT-IR spectra proved the presence of [H2O] in 1 and [OH] groups in 2. Solid-state UV–vis–NIR diffuse reflectance spectra suggested their wide optical band gaps of 2.31 eV and 1.94 eV, respectively. Magnetic measurements indicated that both compounds display a long-range antiferromagnetic ordering at low temperature, showing the change of magnetic entropy of 9.59 J mol−1 K−1 in 1 and that of 14.87 J mol−1 K−1 in 2, respectively. © 2024 Elsevier Inc.

Keyword:

Antiferromagnetism Crystal structure Energy gap Hydrothermal synthesis Iron compounds Phosphates Silver compounds Temperature

Community:

  • [ 1 ] [Li, Ningxia]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 2 ] [Li, Ningxia]College of Chemistry, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Luo, Qi]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 4 ] [Cui, Meiyan]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 5 ] [Zhao, Zhiying]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China
  • [ 6 ] [He, Zhangzhen]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou; 350002, China

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Source :

Journal of Solid State Chemistry

ISSN: 0022-4596

Year: 2024

Volume: 338

3 . 2 0 0

JCR@2023

CAS Journal Grade:3

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SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 1

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