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Crystals 2016, 6(6), 65; doi:10.3390/cryst6060065

Synthesis and 3D Network Architecture of 1- and 16-Hydrated Salts of 4-Dimethylaminopyridinium Decavanadate, (DMAPH)6[V10O28nH2O

1
Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, C. P. 72570 Puebla, Mexico
2
Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, C. P. 72570 Puebla, Mexico
3
Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J-48, C. P. 72570 Puebla, Mexico
*
Author to whom correspondence should be addressed.
Academic Editor: Helmut Cölfen
Received: 13 May 2016 / Revised: 25 May 2016 / Accepted: 26 May 2016 / Published: 31 May 2016
(This article belongs to the Section Biomolecular Crystals)
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Abstract

Two hybrid materials based on decavanadates (DMAPH)6[V10O28]·H2O, (1) and (DMAPH)6[V10O28]·16H2O, (2) (where DMAPH = 4-dimethylaminopyridinium) were obtained by reactions under mild conditions at T = 294 and 283 K, respectively. These compounds are pseudopolymorphs, which crystallize in monoclinic P 2 1 / n and triclinic P 1 ¯ space groups. The structural analysis revealed that in both compounds, six cations DMAPH+ interact with decavanadate anion through N-H∙∙∙Odec hydrogen bonds; in 2, the hydrogen-bonding association of sixteen lattice water molecules leads to the formation of an unusual network stabilized by decavanadate clusters; this hydrogen-bond connectivity is described using graph set notation. Compound 2 differs basically in the water content which in turn increases the π∙∙∙π interactions coming from pyridinium rings. Elemental and thermal analysis (TGA/DSC) as well as FT-IR, FT-Raman, for 1 and 2 are consistent with both structures and are also presented. View Full-Text
Keywords: hybrid decavanadates; water cluster network; crystal structure; vibrational spectroscopy hybrid decavanadates; water cluster network; crystal structure; vibrational spectroscopy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sánchez-Lara, E.; Pérez-Benítez, A.; Treviño, S.; Mendoza, A.; Meléndez, F.J.; Sánchez-Mora, E.; Bernès, S.; González-Vergara, E. Synthesis and 3D Network Architecture of 1- and 16-Hydrated Salts of 4-Dimethylaminopyridinium Decavanadate, (DMAPH)6[V10O28nH2O. Crystals 2016, 6, 65.

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