Synthesis and 3D Network Architecture of 1- and 16-Hydrated Salts of 4-Dimethylaminopyridinium Decavanadate, (DMAPH)6[V10O28]·nH2O
Eduardo Sánchez-Lara,
Aarón Pérez-Benítez,
Samuel Treviño,
Angel Mendoza,
Francisco J. Meléndez,
Enrique Sánchez-Mora,
Sylvain Bernès,
Enrique González-Vergara
Affiliations
Eduardo Sánchez-Lara
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
Aarón Pérez-Benítez
Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, C. P. 72570 Puebla, Mexico
Samuel Treviño
Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, C. P. 72570 Puebla, Mexico
Angel Mendoza
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
Francisco J. Meléndez
Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, C. P. 72570 Puebla, Mexico
Enrique Sánchez-Mora
Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J-48, C. P. 72570 Puebla, Mexico
Sylvain Bernès
Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J-48, C. P. 72570 Puebla, Mexico
Enrique González-Vergara
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
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.
