Porous Coordination-Polymer Crystal Containing One-Dimensional Water Chains Exhibits Guest-Induced Lattice Distortion and a Dielectric Anomaly

Ice one: A porous molecular crystal with guest water molecules in the channels—[La2Cu3{NH(CH2COO)2}6](H2O)n (see picture)—exhibits a distinct peak for the dielectric constant at 180 K (εr≈150) with the electric field parallel to the channel direction. This crystalline compound also shows a large enh...

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Published inAngewandte Chemie (International ed.) Vol. 47; no. 18; pp. 3376 - 3380
Main Authors Cui, HengBo, Zhou, Biao, Long, La-Sheng, Okano, Yoshinori, Kobayashi, Hayao, Kobayashi, Akiko
Format Journal Article
LanguageEnglish
Published Weinheim Wiley-VCH Verlag 21.04.2008
WILEY-VCH Verlag
WILEY‐VCH Verlag
Subjects
dielectric properties
host-guest systems
microporous materials
organic-inorganic hybrid composites
water chemistry
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Summary:Ice one: A porous molecular crystal with guest water molecules in the channels—[La2Cu3{NH(CH2COO)2}6](H2O)n (see picture)—exhibits a distinct peak for the dielectric constant at 180 K (εr≈150) with the electric field parallel to the channel direction. This crystalline compound also shows a large enhancement of εr above 250 K and a characteristic antiferroelectric hysteresis coupled with a liquid–solid transition of the guest water molecules at around 350 K.
Bibliography:http://dx.doi.org/10.1002/anie.200705846
istex:1C743DCF02585270940841B36F9C3285E4A21AE9
The authors thank Mr. Y. Karatsu (Fuso-Seishakusho Co.) for constructing the instruments used for dielectric measurements and for helpful discussions regarding the measurements of the hysteresis loop and Prof. Hashimoto of Nihon University for allowing them to use his TGA and DSC instruments and for helpful discussions regarding the DSC curve.
ark:/67375/WNG-2DD901QR-V
ArticleID:ANIE200705846
The authors thank Mr. Y. Karatsu (Fuso‐Seishakusho Co.) for constructing the instruments used for dielectric measurements and for helpful discussions regarding the measurements of the hysteresis loop and Prof. Hashimoto of Nihon University for allowing them to use his TGA and DSC instruments and for helpful discussions regarding the DSC curve.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200705846