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Kazachenko AS, Vasilieva NY, Fetisova OY, Sychev VV, Elsuf’ev EV, Malyar YN, Issaoui N, Miroshnikova AV, Borovkova VS, Kazachenko AS, Berezhnaya YD, Skripnikov AM, Zimonin DV, Ionin VA. New reactions of betulin with sulfamic acid and ammonium sulfamate in the presence of solid catalysts. BIOMASS CONVERSION AND BIOREFINERY 2022. [DOI: 10.1007/s13399-022-02587-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Samaniyan M, Mirzaei M, Gomila RM, Eshtiagh-Hosseini H, Lotfian N, Mague JT, Pour AN, Frontera A. Supramolecular network of a framework material supported by the anion-π linkage of Keggin-type heteropolyoxotungstates: experimental and theoretical insights. Dalton Trans 2021; 50:1895-1900. [PMID: 33475649 DOI: 10.1039/d0dt03891a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel inorganic-organic hybrid, {Na[Tb(L)(H2O)4]3(SiW12O40)}·4H2O, in which L = 4-hydroxypyridine-2,6-dicarboxylic acid (chelidamic acid), was prepared and characterized by elemental analyses, Fourier transform infrared spectroscopy, and single-crystal X-ray diffraction. It consists of a trinuclear terbium cluster bonded to a Keggin-type polyoxotungstate. In the terbium cluster three crystallographically equivalent Tb3+ ions are bridged by carboxylate oxygen atoms belonging to three chelidamic acid units to form an equilateral triangle. These triangle units connect to each other through hydrogen-bonding and anion-π interactions. A CSD survey was carried out focusing on the cation and the ligand roles in the structure formation of this type of compounds. Finally, DFT calculations were used to analyse the role of the anion-π interactions that are important in the formation of 1D supramolecular assemblies in the solid state. The noncovalent interaction plot (NCIplot) computational tool has been used to characterize the anion-π interaction.
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Affiliation(s)
- Maryam Samaniyan
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad, Iran.
| | - Masoud Mirzaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad, Iran.
| | - Rosa M Gomila
- Serveis Científico-Tècnics, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
| | - Hossein Eshtiagh-Hosseini
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad, Iran.
| | - Nahid Lotfian
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad, Iran.
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - Ali Nakhaei Pour
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, PO Box 9177948974, Mashhad, Iran.
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma, Baleares, Spain.
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