Staggered pillaring: a strategy to control layer-layer packing and enhance porosity in MOFs
Date
2016
Authors
Linder-Patton, O.
Doonan, C.
Sumby, C.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Coordination Chemistry, 2016; 69(11-13):1802-1811
Statement of Responsibility
Oliver M. Linder-Patton, Christian J. Doonan & Christopher J. Sumby
Conference Name
Abstract
Convenient access to metal–organic frameworks (MOFs) with defined structural and chemical features is required to satisfy the design criteria for targeted applications. Here, we demonstrate that staggered pillaring between the layers of a binodal 2-D metal–organic framework (MOF) at only the alternating axial sites of the dimetallic copper(II) paddlewheel nodes aligns the 2-D layers and significantly increases the porosity of the resulting 3-D MOF. Two new pillared MOFs of this form were synthesized, [Cu3(bcppm)2(NO3)2(L)]·xS (where bcppm = bis(4-(4-carboxyphenyl)-1H-pyrazolyl)methane and L = DABCO and pyrazine), via a mixed ligand synthesis. Both pillared 3-D frameworks have considerably larger BET surface areas than their 2-D counterpart, due to the alignment of 2-D layers from a staggered to eclipsed arrangement in the 3-D material; this increase in pore space and surface area is realized despite both materials being 2-fold interpenetrated. The strategy outlined here demonstrates a method of designing porous 3-D MOFs from nonporous 2-D-layered materials with a minimum of layer–layer connections.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
© 2016 Informa UK limited, trading as Taylor & Francis Group