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Coue, V., Dessapt, R., Bujoli-Doeuff, M., Evain, M. & Jobic, S. (2008) Reinvestigation of hybrid organic-inorganic materials based on molybdate and piperazininum cations: Influence of the synthesis conditions on the chemical composition and characterizations of the photochromic properties. J. Solid State Chem. 181 1116–1122.
Added by: Laurent Cournède (2016-03-10 21:58:42) |
| Type de référence: Article DOI: 10.1016/j.jssc.2008.02.010 Numéro d'identification (ISBN etc.): 0022-4596 Clé BibTeX: Coue2008 Voir tous les détails bibliographiques  |
Catégories: MIOPS Mots-clés: Hydrothermal synthesis, organic-inorganic hybrid materials, photochromism, piperazine, polyoxomolybdate Créateurs: Bujoli-Doeuff, Coue, Dessapt, Evain, Jobic Collection: J. Solid State Chem. |
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| Résumé |
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The reactivity of the [Mo7O24](6-) anion towards the structure directing-reagent piperazine (pipz) has been investigated and new synthetic routes to achieve the known (H(2)pipz)(3)[Mo8O27] 1, (H(2)pipz)[Mo3O10]center dot H2O2, and (H(2)pipz)[Mo5O16] 3 molybdenum(VI) containing compounds are proposed. The role of the pH on the stabilization of the different compounds and their interconversion pathways is discussed. Compounds 1 and 2 show photochromic behavior under UV excitation, related to the particular organization of the organic component around the mineral framework. Their optical properties are reported and commented. (C) 2008 Elsevier Inc. All rights reserved.
Added by: Laurent Cournède |