Opening Metal−Organic Frameworks Vol. 2: Inserting Longer Pillars into Pillared-Paddlewheel Structures through Solvent-Assisted Linker Exchange
Olga Karagiaridi , Wojciech Bury , E. Tylianakis , A. A. Sarjeant , J. T. Hupp , O. K. Farha
AbstractSolvent-assisted linker exchange (SALE) was performed on a pillared-paddlewheel metal–organic framework (MOF), SALEM-5, to achieve incorporation of longer linkers into the material. The 9-Å meso-1,2-di(4-pyridyl)-1,2-ethanediol pillar of SALEM-5 was successfully replaced by 11-Å, 14-Å, and 17-Å pillars to generate daughter MOFs SALEM-6, SALEM-7, and SALEM-8. The daughter frameworks possess more open cages, as was demonstrated by structural modeling from the powder X-ray diffraction patterns, and larger solvent accessible space, as was demonstrated by thermogravimetric analysis. Finally, a study was performed to examine the effect of pKa of monoprotonated dipyridyl pillars (as an indicator of the Zn–L bond strength) on the outcome of SALE.
|Journal series||Chemistry of Materials, ISSN 0897-4756|
|Publication size in sheets||0.5|
|Keywords in English||metal−organic frameworks, solvent-assisted linker exchange, pKa|
|Score|| = 45.0, 28-11-2017, ArticleFromJournal|
= 45.0, 28-11-2017, ArticleFromJournal
|Publication indicators||: 2013 = 8.535 (2) - 2013=8.419 (5)|
|Citation count*||31 (2015-06-01)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.