@misc{10481/57718,
year = {2019},
month = {9},
url = {http://hdl.handle.net/10481/57718},
abstract = {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.},
organization = {This research was funded by MEC grant CTQ2016-75150-R and the Generalitat de Catalunya
(2017/SGR/1720) and the Spanish MINECO through the Severo Ochoa Centers of Excellence Program, under
Grant SEV-2015-0496.},
publisher = {MDPI},
keywords = {Metal-organic Frameworks (MOFs)},
keywords = {Open metal sites},
keywords = {Boron hydrides},
keywords = {Carborane},
keywords = {Reversible phase transition},
title = {A Reversible Phase Transition of 2D Coordination Layers by B–H∙∙∙Cu(II) Interactions in a Coordination Polymer},
doi = {10.3390/molecules24173204},
author = {Gan, Lei and Fonquernie, Pol G. and Light, Mark E. and Norjmaa, Gantulga and Ujaque, Gregori and Choquesillo Lazarte, Duane and Fraile, Julio and Teixidor, Francesc and Viñas, Clara and Planas, José G.},
}