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Yaffa, L., Kama, A. B., Fall, B., Traoré, B., Diop, C. A. K., Sidibe, M., Diop, M. & Gautier, R. (2022) Synthesis, crystal structure and electrochemical properties of a new methylammonium sodium decavanate salt Na3(CH3NH3)3[V10O28].(CH3NH2).14H2O. Journal of Molecular Structure, 1254 132321. 
Added by: Richard Baschera (2022-02-10 16:55:34)   Last edited by: Richard Baschera (2022-02-10 16:57:20)
Type de référence: Article
DOI: 10.1016/j.molstruc.2021.132321
Numéro d'identification (ISBN etc.): 0022-2860
Clé BibTeX: Yaffa2022
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Mots-clés: Decavanadate, Electrochemical property, polyoxometalate
Créateurs: Diop, Diop, Fall, Gautier, Kama, Sidibe, Traoré, Yaffa
Collection: Journal of Molecular Structure
Consultations : 1/183
Indice de consultation : 15%
Indice de popularité : 3.75%
Liens URLs     https://www.scienc ... /S0022286021024418
A new hybrid decavanadate Na3(CH3NH3)3[V10O28].(CH3NH2).14H2O was obtained by a simple synthesis in solution and the crystal structure was determined by single-crystal X-ray diffraction. The compound consists of decavanadate anions [V10O28]6- isolated between sodium and methylammonium cations. The UV–Visible absorption, IR spectroscopy as well as electrochemical properties were characterized. The compound crystalizes in a triclinic system (space group P-1) with the unit cell parameters: a = 10.1584(11) Å, b = 10.8123(5) Å, c = 11.1582(7) Å, α = 107.723(4)°, β = 106.811(5)°, γ = 94.238(7)°. UV–Visible absorption spectroscopy shows a strong absorption band at 300 nm. The main IR absorption bands appear at: 954 cm-1, 800 cm-1, 732 cm-1 and 580 cm-1. The electrochemical measurement of this compound shows two reversible one-electron redox process -105 mV (I-I’) and 335mV(II-II’), which was attributed to two consecutive one-electron VV → VIV reductions.
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