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Kama, A. B., Dessapt, R., Serier-Brault, H., Sidibe, M., Diop, C. A. K. & Gautier, R. (2017) Stabilization of beta-octamolybdate with large counterions. Journal of Molecular Structure, 1141 698–702.
Added by: Richard Baschera (2017-07-07 15:08:42) Last edited by: Richard Baschera (2017-07-07 15:15:52) |
| Type de référence: Article DOI: 10.1016/j.molstruc.2017.03.111 Numéro d'identification (ISBN etc.): 0022-2860 Clé BibTeX: Kama2017 Voir tous les détails bibliographiques  |
Catégories: INTERNATIONAL, MIOPS Créateurs: Dessapt, Diop, Gautier, Kama, Serier-Brault, Sidibe Collection: Journal of Molecular Structure |
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| Résumé |
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Two new organic-inorganic compounds [H2NC(N(CH3)(2))(2)](4)[Mo8O26]center dot 2H(2)O (1) and (C6H11NH3)(4)[Mo8O26] (2) have been synthesized at room temperature and characterized by single-cristal X-ray diffraction, thermal and elemental analyses. We show that the beta-[Mo8O26](4-) isomer can be stabilized by counterions which are either small or large. This observation is contradictory to the common rule which states that the beta isomer should be stabilized by small counterions. Thus, we show that the organic counterion in both compounds (1) and (2) are large, but its ammonium group stabilize the beta form owing to its localization in a specific nucleophilic site. (C) 2017 Elsevier B.V. All rights reserved.
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