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|Title:||Host-Guest [2+2] Cycloaddition Reaction: Postsynthetic Modulation of CO2 Selectivity and Magnetic Properties in a Bimodal Metal-Organic Framework|
Bejagam, Karteek K.
Maji, Tapas Kumar
Porous Coordination Polymer
|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
|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.|
|Appears in Collections:||Research Articles (Balasubramanian Sundaram)|
Research Articles (Tapas Kumar Maji)
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