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Anion-induced ferroelectric polarization in a luminescent metal–organic cage compound

Show simple item record Yadav, Ashok en_US Srivastava, Anant Kumar en_US Kulkarni, Priyangi en_US Divya, Pillutla en_US Steiner, Alexander en_US Praveenkumar, B. en_US BOOMISHANKAR, RAMAMOORTHY en_US 2019-07-01T05:33:17Z 2019-07-01T05:33:17Z 2017-09 en_US
dc.identifier.citation Journal of Materials Chemistry C, 5(40), 10624-10629. en_US
dc.identifier.issn 2050-7526 en_US
dc.identifier.uri en_US
dc.description.abstract Metal–organic crystalline solids with ferroelectric properties have attracted significant attention recently as materials for high-tech applications. Here, we describe two crystalline assemblies that contain cationic metal–organic cages {[Zn6(H2O)12][TPTA]8}(NO3)12·26H2O (1) and {[Zn6(H2O)12][TPTA]8}(ClO4)12·18.75H2O (2) featuring the tripodal ligand [PS(NH3Py)3] (TPTA). Ferroelectric measurement on a single crystal of 1 gave a remnant (Pr) polarization of 1.2 μC cm−2 at room temperature. The ferroelectric response originates from the toggling of nitrate anions and solvate molecules found in pockets between the cages. The temperature-dependent permittivity of 1 shows an anomalous dielectric peak at 20 °C. This is attributed to the desolvation-assisted dielectric relaxation behaviour and signifies the role of solvate molecules in the ferroelectric behaviour of 1. In addition, this material is highly luminescent exhibiting a bright blue emission under UV light. This multifunctional behaviour is unique among metal–organic cage frameworks. en_US
dc.language.iso en en_US
dc.publisher Royal Society of Chemistry en_US
dc.subject Anion-induced ferroelectric en_US
dc.subject Luminescent en_US
dc.subject Metal organic cage compound en_US
dc.subject Ferroelectric en_US
dc.subject 2017 en_US
dc.title Anion-induced ferroelectric polarization in a luminescent metal–organic cage compound en_US
dc.type Article en_US
dc.contributor.department Dept. of Chemistry en_US
dc.identifier.sourcetitle Journal of Materials Chemistry C en_US
dc.publication.originofpublisher Foreign en_US

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