Abstract
Two new inorganic-organic hybrid materials based on heteropolyoxometalates, (C4H10N)6(P2 Mo18O62).4H2O I, and (C4H10N)6(As2Mo18O62).4H2O II, where C4H10N is protonated pyrrolidine have been synthesized and structurally characterized by physic-chemical methods. Single-crystal X-ray diffraction method, infrared, ultraviolet spectroscopy, Thermogravimetricanalysis andcyclic voltammetry measurements of the title hybrid materials indicate that there are hydrogen bond interaction between O atoms of the heteropolyoxometalates and water molecules as well as the N and O atoms of the organic compound. The molecular structures of synthesized hybrid materials contain discrete entities of pyrrolidinumion and water molecules surround every [X2Mo18O62]6− anion over the extended crystalline network that the [X2Mo18O62]6− anion retains its “Dawson structure”. Crystal data: I monoclinic, space group P21/a, a = 13,453(1) Å, b = 24,046 (1) Å, c = 24,119(1) β = 97,99(1)°, V = 7726,30(5) Å3 and Z = 4; II monoclinic, space group P21/a, a = 13.4900(1) Å, 24.0900(1) Å, 24.2740(1) Å, β = 98.320(1)°, V = 7805.40(7) Å3 and Z = 4.
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Two new inorganic-organic hybrid materials based on the inorganic cluster, [X2Mo18O62]6- (X = P, As), crystallize in monoclinic space group P21/a.
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Acknowledgments
The crystal data collection of I and II was done in the Laboratoire de MateriauxetCristallochimie, Faculté des Sciences, El Manar, 2092, Tunis, Tunisia. We are grateful to Ahmed Driss who supervised this experiment.
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The cif and checkCIF files for X-ray crystallography of the both compounds are available in supplementary information at www.ias.ac.in/chemsci. Crystallographic data for the structures of I and II have been deposited in the Cambridge Crystallographic Data center as publication number CCDC 1031359 and 1031358, respectively. Copy of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB21EZ, UK (fax: (+ 44) 1223-336-033; e-mail: deposit@ccdc.com.ac.uk).
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HMIDA, F., AYED, M., AYED, B. et al. Two new inorganic-organic hybrid materials based on inorganic cluster, [X2Mo18O62]6− (X=P, As). J Chem Sci 127, 1645–1651 (2015). https://doi.org/10.1007/s12039-015-0931-x
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DOI: https://doi.org/10.1007/s12039-015-0931-x