Abstract
A two-dimensional (2D) porous metal-organic framework (MOF) [{Zn2(L) 4(OTf) 4}.2(DCM).xG]n (1 ⊃ G) (OTf = trifluoro methane sulfonate, DCM = Dichloromethane, L (1, 4-bis (4-pyridyl)-2, 3-diaza-1, 3-butadiene) synthesized at room temperature. Free guests DCM were encapsulated in the pores of the MOF. On air drying the MOF loses free DCM molecules and changed its structure in a crystal to crystal manner to produce compound 1 [{Zn(L)2(OTf)2}.XG]n(1). This guest-induced breathing of the framework was also supported from PXRD patterns. Solid state photoluminescence properties of the dynamic MOF were studied at room temperature.
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Acknowledgements
BM is thankful to the Council of Scientific & Industrial Research (CSIR) for research fellowship. We are grateful to IISER Pune for research facilities and the Department of Science and Technology (DST) (Project no. GAP/ DST/CHE-12-0083) and The Department of Atomic Energy (DAE) (Project no. 2011/20/37C/06/BRNS) for financial support.
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Crystallographic data for the structural analysis have been deposited with the Cambridge Crystallographic data Centre. CCDC 996229 (1 ⊃ G) and CCDC 996228 (1). Copies of the data can be obtained free of charge at www.ccdc.cam.ac.uk/conts/retrieving.html [or from the Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge CB21EZ, UK, Fax: (internet) + 44-1223-336-033; E-mail: deposit@ccdc.cam.ac.uk.
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MANNA, B., SINGH, S. & GHOSH, S.K. Guest driven structural transformation studies of a luminescent metal–organic framework. J Chem Sci 126, 1417–1422 (2014). https://doi.org/10.1007/s12039-014-0704-y
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DOI: https://doi.org/10.1007/s12039-014-0704-y