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Bujoli-Doeuff, M., Dessapt, R., Deniard, P. & Jobic, S. (2012) New Hybrid Layered Molybdates Based on 2/infinity[MonO3n+1](2-) Units (n=7, 9) with Systematic Organic-Inorganic Interfaces. Inorg. Chem. 51 142–149. 
Added by: Laurent Cournède (2016-03-10 21:28:40)
Type de référence: Article
DOI: 10.1021/ic201298d
Numéro d'identification (ISBN etc.): 0020-1669
Clé BibTeX: BujoliDoeuff2012
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Catégories: MIOPS
Mots-clés: building-blocks, composite-solids, composition space analysis, crystal-structures, Hydrothermal synthesis, Molybdenum trioxide, noncentrosymmetric molybdates, photochromic properties, polyoxometalate, structure-directing role
Créateurs: Bujoli-Doeuff, Deniard, Dessapt, Jobic
Collection: Inorg. Chem.
Consultations : 10/484
Indice de consultation : 3%
Indice de popularité : 0.75%
Two new hybrid organic-inorganic molybdates based on layered 2/infinity[MonO3n+1](2-) blocks and organoammonium cations (+)(MexH3-xN)-(CH2)(6)(NH3-xMex)(+) (X = 0-1), namely, (H3N(CH2)(6)NH3)[Mo7O22]center dot H2O (I) and (MeH2N(CH2)(6)NH2Me)[Mo9O28] (2), have been synthesized under hydrothermal conditions. The 2/infinity[Mo9O28](2-) unit in 2 is an unprecedented member of the 2/infinity[MonO3n+1](2-) family with the n value extended to 9. The structural filiation between the 2/infinity[MonO3n+1](2-) (n = 5, 7, 9) blocks is well established, and their structural similarity with the 2/infinity[MoO3] slabs in alpha-MoO3 is also discussed. Single-crystal X-ray analyses show that the 2/infinity[MoO3n+1](2-) layers in 1 and 2 are pillared in the three-dimensional networks by the organic cations with a similar connection at the organic-inorganic interface. In addition, a correlation between the topology of the 2/infinity[MonO3n+1](2-) blocks in 1 and 2 and the overall sizes of the associated organic cations is pointed out. Finally, the efficiency of Fourier transform Raman spectroscopy to easily discriminate the different 2/infinity[MonO3n+1](2-) blocks (n = 5, 7, 9) in hybrid organic-inorganic layered molybdate materials is clearly evidenced.
Added by: Laurent Cournède  
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