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Harmouchi HE, Moumouche O, Alami S, Hmada A, Khaoulaf R, Brouzi K, Touhami ME, Harcharras M. Vibrational Spectroscopy and electrochemical study of MCuP2O7 (M = Ba, Ca and Zn), improvement of corrosion resistance of mild steel in 1.0 M HCl medium. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Drozhzhin OA, Alekseeva AM, Tyablikov OA, Marenko AP, Antipov EV. Electrochemical Activity of a Ni2+/Ni3+ Redox-Couple in Polyanionic Cathode Materials of Different Structure Types. RUSS J ELECTROCHEM+ 2022. [DOI: 10.1134/s1023193522110052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Souiwa K, Lebraud E, Gayot M, Weill F, Mauvy F, Avdeev M, Chtourou R, Hidouri M, Toulemonde O. Structural and Spectroscopic Studies of NaCuCr 2(PO 4) 3: A Noncentrosymmetric Phosphate Belonging to the α-CrPO 4-Type Compounds. Inorg Chem 2021; 60:7803-7814. [PMID: 34018395 DOI: 10.1021/acs.inorgchem.1c00296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An electron and joint neutron and X-ray diffraction study of the synthetic copper/chromium phosphate NaCuCr2(PO4)3 (NaCuP) is reported. A noncentrosymmetric Imm2 space group belonging to the well-known α-CrPO4 type is observed contrary to what is reported in NaMCr2(PO4)3 (M = Co and Ni) phosphates. The structural model is validated by bond valence sum analysis and charge-distribution (CHARDI) calculations and supported by complementary infrared and Raman spectroscopy investigations. Both Raman spectroscopy and theoretical study by deformation density approach further suggest the presence of Cu2+ (3d9) and Cr2+ (3d4) Jahn-Teller polaron effects as a key factor to the centro Imma to noncentrosymmetric Imm2 phase change.
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Affiliation(s)
- Khalifa Souiwa
- Laboratoire Physico-Chimie de Matériaux, Faculté des Sciences, Université de Monastir, 5019 Monastir, Tunisie.,Centre de Recherches et des Technologies de l'Energie, Technopole de Borj-Cédria B.P. 95, 2050 Hammam-Lif, Tunisie
| | - Eric Lebraud
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, Pessac F-33608, France
| | - Marion Gayot
- CNRS, Université de Bordeaux, PLACAMAT UMS 3626, Pessac F-33600, France
| | - Francois Weill
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, Pessac F-33608, France
| | - Fabrice Mauvy
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, Pessac F-33608, France
| | - Maxim Avdeev
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Sydney 2232, Australia.,School of Chemistry, The University of Sydney, Sydney 2006, Australia
| | - Radhouane Chtourou
- Centre de Recherches et des Technologies de l'Energie, Technopole de Borj-Cédria B.P. 95, 2050 Hammam-Lif, Tunisie
| | - Mourad Hidouri
- Laboratoire Physico-Chimie de Matériaux, Faculté des Sciences, Université de Monastir, 5019 Monastir, Tunisie
| | - Olivier Toulemonde
- CNRS, Université de Bordeaux, ICMCB, 87 avenue du Dr. A. Schweitzer, Pessac F-33608, France
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Saleck AO, Mercier C, Follet C, Mentré O, Assani A, Saadi M, El Ammari L. Synthesis, crystal structure and magnetic behavior of a new calcium magnesium and iron orthophosphate Ca2MgFe2(PO4)4. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Badri A, Alvarez-Serrano I, Luisa López M, Ben Amara M. Sol-gel synthesis, magnetic and methylene blue adsorption properties of lamellar iron monophosphate KMgFe(PO4)2. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Driscoll E, Driscoll L, Slater P. The importance of ionic radii in determining the structure obtained for sodium transition metal sulfates: Tuning structure through transition metal and selenate doping. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2019.121080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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