abstract
Two novel compounds with the molecular formula (H3O)(3)[PM12O40]-3(C28H40O10) [where C28H40O10 = dibenzo-30-crown-10 and M = W (1) or Mo (2)] were isolated in the solid state and their crystal structures were determined by single-crystal X-ray diffraction. The compounds were further characterized using FT-IR, FT-Raman, solid-state magic-angle-spinning NMR and elemental analysis. These supramolecular organic-inorganic hybrid frameworks are formed by one alpha-Keggin-type [PM12O40](3-) polyoxoanion and three {(H3O)(C28H40O10)}(+) monocationic hydrogen-bonded fragments. (C) 2007 Elsevier B.V. All rights reserved.
keywords
X-RAY-DIFFRACTION; SOLID-STATE; CROWN-ETHER; RARE-EARTH; STRUCTURAL-CHARACTERIZATION; SUPERMOLECULAR COMPOUND; MACROCYCLIC POLYETHERS; POTASSIUM THIOCYANATE; NANOSTRUCTURED FILMS; LANTHANIDE COMPLEXES
subject category
Chemistry
authors
Soares-Santos, PCR; Cunha-Silva, L; Sousa, FL; Mafra, L; Rocha, J; Cavaleiro, AMV; Trindade, T; Paz, FAA; Klinowski, J; Nogueira, HIS
our authors
Ana Maria Vieira Silva Viana Cavaleiro
Full professor
Filipa Lourosa Sousa
Assistant Researcher
Filipe Alexandre Almeida Paz
Principal Researcher
Helena Isabel Seguro Nogueira
Assistant Professor with Aggregation
João Rocha
Full Professor
Luís Mafra
Principal Researcher
Paula Cristina Ramos Soares e Santos
Laboratory Officer
Tito Trindade
Full professoracknowledgements
We are grateful to FEDER, POCI and Fundacao para a Ciencia e a Tecnologia (Portugal) for financial support (POCI/QUI/58887/2004) and the post-doctoral research Grants No. SFRH/BPD/14954/2004 (to P.C.R.S.-S.) and SFRH/BPD/14410/2003 (to L.C.-S.).