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Título: | A Reversible Phase Transition of 2D Coordination Layers by B–H∙∙∙Cu(II) Interactions in a Coordination Polymer |
Autor: | Gan, Lei; Fonquernie, Pol G.; Light, Mark E.; Norjmaa, Gantulga; Ujaque, Gregori; Choquesillo-Lazarte, Duane CSIC ORCID; Fraile, Julio CSIC ORCID ; Teixidor, Francesc CSIC ORCID; Viñas, Clara CSIC ORCID; Planas, José G. | Palabras clave: | Metal-organic frameworks Open metal sites Boron hydrides Carborane Reversible phase transition |
Fecha de publicación: | 3-sep-2019 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Molecules 24(17): 3204 (2019) | Resumen: | Materials that combine flexibility and open metal sites are crucial for myriad applications. In this article, we report a 2D coordination polymer (CP) assembled from CuII ions and a flexible meta-carborane-based linker [Cu2(L1)2(Solv)2]•xSolv (1-DMA, 1-DMF, and 1-MeOH; L1: 1,7-di(4-carboxyphenyl)-1,7-dicarba-closo-dodecaborane). 1-DMF undergoes an unusual example of reversible phase transition on solvent treatment (i.e., MeOH and CH2Cl2). Solvent exchange, followed by thermal activation provided a new porous phase that exhibits an estimated Brunauer-Emmett-Teller (BET) surface area of 301 m2 g−1 and is capable of a CO2 uptake of 41 cm3 g−1. The transformation is reversible and 1-DMF is reformed on addition of DMF to the porous phase. We provide evidence for the reversible process being the result of the formation/cleavage of weak but attractive B–H∙∙∙Cu interactions by a combination of single-crystal (SCXRD), powder (PXRD) X-ray diffraction, Raman spectroscopy, and DFT calculations. | Versión del editor: | https://doi.org/10.3390/molecules24173204 | URI: | http://hdl.handle.net/10261/190082 | DOI: | 10.3390/molecules24173204 | E-ISSN: | 1420-3049 |
Aparece en las colecciones: | (ICMAB) Artículos (IACT) Artículos |
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reversible_phase_transition_2D_coordination_layers.pdf | 4,87 MB | Adobe PDF | Visualizar/Abrir |
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