Reversible Phase Transition with Ultralarge Dielectric
Relaxation Behaviors in Succinimide Lithium(I) Hybrids
Posted on 2018-01-20 - 18:50
Dielectric relaxations
have widely applied on high permittivity capacitors, dielectric switches,
ferroelectrics, pyroelectrics, and electrical insulating materials.
However, few investigations of large dielectric relaxation behaviors
on organic–inorganic hybrid materials have been documented
before. Here we present a novel two-dimensional succinimide lithium(I)
hybrid compound, [Li(PDD)2ClO4]n, 1, (PDD = 2,5-pyrrolidinedione = succinimide)
which shows reversible phase transition behavior in the vicinity of
228 K accompanied by an unusual symmetry breaking from I41/amd to C2/c. X-ray single crystal diffractions analysis indicates
the twist motion of pyrrolidine heterocycles, and order–disorder
motion of ClO4– anions triggered the
reversible phase transition. By means of an intuitive crystallographic
model (rattling ion model), we further illustrated the mechanism of
the interesting reversible phase transition. Particularly, 1 shows ultralarge dielectric relaxation behavior in the vicinity
of the phase transition by its dielectric constant dependence on temperatures
and frequencies as well as its Cole–Cole relation.
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Tang, Yun-Zhi; Wang, Bin; Zhou, Hai-Tao; Chen, Shao-Peng; Tan, Yu-Hui; Wang, Chang-Feng; et al. (2018). Reversible Phase Transition with Ultralarge Dielectric
Relaxation Behaviors in Succinimide Lithium(I) Hybrids. ACS Publications. Collection. https://doi.org/10.1021/acs.inorgchem.7b02625
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AUTHORS (8)
YT
Yun-Zhi Tang
BW
Bin Wang
HZ
Hai-Tao Zhou
SC
Shao-Peng Chen
YT
Yu-Hui Tan
CW
Chang-Feng Wang
CY
Chang-Shan Yang
HW
He-Rui Wen