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A Porous Coordination‐Polymer Crystal Containing One‐Dimensional Water Chains Exhibits Guest‐Induced Lattice Distortion and a Dielectric Anomaly
Author(s) -
Cui HengBo,
Zhou Biao,
Long LaSheng,
Okano Yoshinori,
Kobayashi Hayao,
Kobayashi Akiko
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200705846
Subject(s) - dielectric , antiferroelectricity , materials science , molecule , crystallography , electric field , hysteresis , lattice (music) , polymer , chemical physics , crystal (programming language) , liquid crystal , condensed matter physics , ferroelectricity , chemistry , physics , optoelectronics , organic chemistry , composite material , quantum mechanics , computer science , acoustics , programming language
Ice one : A porous molecular crystal with guest water molecules in the channels—[La 2 Cu 3 {NH(CH 2 COO) 2 } 6 ](H 2 O) n (see picture)—exhibits a distinct peak for the dielectric constant at 180 K ( ε r ≈150) with the electric field parallel to the channel direction. This crystalline compound also shows a large enhancement of ε r above 250 K and a characteristic antiferroelectric hysteresis coupled with a liquid–solid transition of the guest water molecules at around 350 K.