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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/20765
Title: Adaptive pores: Charge transfer modules as supramolecular handles for reversible pore engineering of mesoporous silica
Authors: Kumar, B. V.V.S.Pavan
Rao K.V.
Soumya T.
George S.J.
Eswaramoorthy M.
Published in: Journal of the American Chemical Society
Abstract: We introduce a non-covalent pore engineering approach to achieve exceptional reversibility of functionalization in SBA-15 through viologen-pyranine charge transfer (CT) modules. By employing alkyl derivatives of pyranine as donors, we could exploit the strong CT interactions between pyranine and viologen to reversibly modify the pore size and philicity. The fast binding of the donors enables quick and facile functionalization within minutes at room temperature. The modularity of the approach enables modification of pores with custom-designed compositions, components, and functions. The high selectivity exhibited by viologen on the pore wall facilitated its use in a CT affinity column. © 2013 American Chemical Society.
Citation: Journal of the American Chemical Society, 135(30): 10902-10905
URI: https://doi.org/10.1021/ja4035472
http://repository.iitr.ac.in/handle/123456789/20765
Issue Date: 2013
Keywords: Affinity column
Alkyl derivatives
Engineering approaches
Functionalizations
High selectivity
Mesoporous Silica
Non-covalent
Room temperature
Chemistry
Synthesis (chemical)
Charge transfer
silicon dioxide
viologen
charge transfer
chemical engineering
chemical modification
chemical phenomena
pore engineering
room temperature
ISSN: 27863
Author Scopus IDs: 55266247800
7404812655
57219310776
55392317100
55983367600
Author Affiliations: Kumar, B.V.V.S.P., Nanomaterials and Catalysis Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560064, India
Rao, K.V., Supramolecular Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560064, India
Soumya, T., Nanomaterials and Catalysis Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560064, India
George, S.J., Supramolecular Chemistry Laboratory, New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560064, India
Eswaramoorthy, M., Nanomaterials and Catalysis Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560064, India
Corresponding Author: George, S.J.; Supramolecular Chemistry Laboratory, Jakkur P.O., Bangalore 560064, India; email: george@jncasr.ac.in
Appears in Collections:Journal Publications [CY]

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