Abstract
Two new organic–inorganic hybrid compounds based on Keggin-type polyoxometalates and melaminium cations, namely (C3N6H7)3[PW12O40]·6H2O (1) and (C3N6H7)4[SiW12O40]·6H2O (2) have been synthesized at room temperature by a solvent diffusion method and characterized by IR spectroscopy, CHN analyses and single-crystal X-ray diffraction. Hybrid 1 consists of three melamonium cations per [PW12O40]3− unit with the hydration water molecules connected to each other via hydrogen bonding forming a 1D zigzag chain. In compound 2, [SiW12O40]4− polyanions and water molecules act as inorganic layers that are alternating with layers of monoprotonated organic melaminium cations.
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Acknowledgements
Authors thank the Department of chemistry of Ferdowsi University of Mashhad, Mashhad, Iran, for financial support under Grant No. 3/17564. The authors also thank Molecules and Material unit of the general X-ray service from SGIker (UPV/EHU) for technical and human support. The Vice-rectorate for Research from the UPV/EHU is acknowledged for the postdoctoral fellowship to B.A. within “Convocatorias de ayudas para la Especialización de Personal Investigador”.
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Farhadipour, A., Eshghi, H., Yousefi, M. et al. Synthesis and Single Crystal Structure Description of Two New Polyoxometalate–Melamine Hybrids. J Chem Crystallogr 47, 140–150 (2017). https://doi.org/10.1007/s10870-017-0690-2
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DOI: https://doi.org/10.1007/s10870-017-0690-2