Robust Multifunctional Yttrium-Based Metal-Organic Frameworks with Breathing Effect
| Autor: | Ana D. G. Firmino, João P. C. Tomé, Margarida M. Antunes, Anabela A. Valente, Filipe M.L. Figueiredo, Ricardo F. Mendes, Paula Barbosa, Sérgio M. F. Vilela, Filipe A. Almeida Paz |
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| Rok vydání: | 2017 |
| Předmět: |
Binodal
Inorganic chemistry chemistry.chemical_element 02 engineering and technology Yttrium 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Phosphonate 0104 chemical sciences law.invention Inorganic Chemistry Thermogravimetry Solvent chemistry.chemical_compound Crystallography chemistry law Molecule Metal-organic framework Physical and Theoretical Chemistry Crystallization 0210 nano-technology |
| Zdroj: | Inorganic chemistry. 56(3) |
| ISSN: | 1520-510X |
| Popis: | Phosphonate- and yttrium-based metal–organic frameworks (MOFs), formulated as [Y(H5btp)]·5.5H2O (1), [Y(H5btp)]·2.5H2O (2), (H3O)[Y2(H5btp)(H4btp)]·H2O (3), and [Y(H5btp)]·H2O·0.5(MeOH) (4), were prepared using a “green” microwave-assisted synthesis methodology which promoted the self-assembly of the tetraphosphonic organic linker [1,1′-biphenyl]-3,3′,5,5′-tetrayltetrakis(phosphonic acid) (H8btp) with Y3+ cations. This new family of functional materials, isolated in bulk quantities, exhibits a remarkable breathing effect. Structural flexibility was thoroughly studied by means of X-ray crystallography, thermogravimetry, variable-temperature X-ray diffraction, and dehydration and rehydration processes, ultimately evidencing a remarkable reversible single-crystal to single-crystal (SC–SC) transformation solely through the loss and gain of crystallization solvent molecules. Topologically, frameworks remained unaltered throughout this interconversion mechanism, with all compounds being binodal 6,6-connected ne... |
| Databáze: | OpenAIRE |
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