Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/handle/10572/2122
Title: Host-Guest [2+2] Cycloaddition Reaction: Postsynthetic Modulation of CO2 Selectivity and Magnetic Properties in a Bimodal Metal-Organic Framework
Authors: Hazra, Arpan
Bonakala, Satyanarayana
Bejagam, Karteek K.
Balasubramanian, Sundaram
Maji, Tapas Kumar
Keywords: Chemistry
cycloaddition
host-guest systems
magnetic properties
metal-organic frameworks
postsynthetic modification
Porous Coordination Polymer
Sorption Behavior
Carbon-Dioxide
Adsorption
Single
Functionalization
Transformation
Molecules
Capture
Release
Issue Date: 2016
Publisher: Wiley-V C H Verlag Gmbh
Citation: Hazra, A.; Bonakala, S.; Bejagam, K. K.; Balasubramanian, S.; Maji, T. K., Host-Guest 2+2 Cycloaddition Reaction: Postsynthetic Modulation of CO2 Selectivity and Magnetic Properties in a Bimodal Metal-Organic Framework. Chemistry-a European Journal 2016, 22 (23), 7792-7799 http://dx.doi.org/10.1002/chem.201505131
Chemistry-A European Journal
22
23
Abstract: Simultaneous tuning of permanent porosity and modulation of magnetic properties by postsynthetic modification (PSM) with light in a metal-organic framework is unprecedented. With the aim of achieving such a photoresponsive porous magnetic material, a 3D photoresponsive biporous framework, MOF1, which has 2D channels occupied by the guest 1,2-bis(4-pyridyl)ethylene (bpee), H2O, and EtOH molecules, has been synthesized. The guest bpee in 1 is aligned parallel to pillared bpee with a distance of 3.9 angstrom between the ethylenic groups; this allows photoinduced PSM of the pore surface through a [2+2] cycloaddition reaction to yield MOF2. Such photoinduced PSM of the framework structure introduces enhanced CO2 selectivity over that of N-2. The higher selectivity in MOF2 than that of MOF1 is studied through theoretical calculations. Moreover, MOF2 unveils reversible changes in T-c with response to dehydration- rehydration. This result demonstrates that photoinduced PSM is a powerful tool for fabricating novel functional materials.
Description: Restricted Access
URI: http://hdl.handle.net/10572/2122
ISSN: 0947-6539
Appears in Collections:Research Articles (Balasubramanian Sundaram)
Research Articles (Tapas Kumar Maji)

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