A novel organic/inorganic hybrid nanoporous material incorporating Keggin-type polyoxometalates

• Autores: Lan Yang, Haruo Naruke, Toshihiro Yamase
• Localización: Inorganic chemistry communications, ISSN 1387-7003, Vol. 6, Nº 8, 2003, págs. 1020-1024
• Idioma: inglés
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• Resumen

  • Tree novel nanoporous compounds, [Cu3(TMA)2(H2O)3]4[{(CH3)4N}2(H2SiMo12O40)] ·≈40H2O (1), [Cu3(TMA)2(H2O)3]4[{(CH3)4N}2(HPW12O40)] ·≈40H2O (2), and [Cu3(TMA)2(H2O)3]4[{(CH3)4N}2(HPMo6W6O40)] ·≈40H2O (3) (TMA=acidtrimesic acid=1,3,5-benzentricaboxylate) have been synthesized via hydrothermal process, and characterized by X-ray structure analysis, IR and NMR spectroscopy, and thermogravimetry. All the compounds crystallize isostructurally consisting of a nanoporous coordination polymer framework [Cu3(TMA)2(H2O)3]n accommodating α-Keggin polyoxomolybdate and -tungstate anions. Results of the IR and 29Si and 31P MAS NMR spectra reveal the existence of α-Keggin species with no other impurity.