Ferroelectric Order in the Chiral Coordination Polymers [Ln2(L)2(ox)2(H2O)2] with Ln=Gd3+ or Dy3+, L=((S, S)-1,3-bis(1-Carboxylethyl)imidazolium and Ox=Oxalate.

被引：1

作者：

Farger, P. ^{[1
]}

Leuvrey, C. ^{[1
]}

Lenertz, M. ^{[1
]}

Taupier, G. ^{[1
,2
]}

Dorkenoo, K. D. ^{[1
]}

Ihiawakrim, D. ^{[1
]}

Cherifi-Hertel, S. ^{[1
]}

Rogez, G. ^{[1
]}

Rabu, P. ^{[1
]}

Delahaye, E. ^{[1
,3
]}

机构：

[1] Univ Strasbourg, Inst Phys & Chim Mat Strasbourg, UMR 7504, CNRS, 23 Rue Loess, F-67034 Strasbourg, France

[2] Univ Rennes 1, Synth Caracterisat Anal MATiere ScanMAT, UAR CNRS 2025, CNRS, Beaulieu Batiment 10 A,263 Ave Gen Leclerc, F-35042 Rennes, France

[3] Univ Toulouse, Lab Chim Coordinat, CNRS, UPS,INPT, 205 Route Narbonne, F-31077 Toulouse, France

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2024年 / 650卷 / 11-12期

关键词：

Ferroelectricity; Coordination polymer; Imidazolium; Rare Earth; Chirality; CRYSTAL-STRUCTURE; LANTHANIDES; TRANSITION; SALTS;

D O I：

10.1002/zaac.202400005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We evidence the ferroelectricity of two isostructural magnetic coordination networks obtained from a chiral imidazolium dicarboxylate salt ((S, S)-1,3-bis(1-carboxylethyl)imidazolium or [HL*]) and Gd3+ or Dy3+ ions in presence of oxalic acid (H(2)ox). The two compounds exhibit a chiral structure P1 and ferroelectric properties. The crystallographic study shows that the Dy based-compound is isostructural to the Gd analog. The non-centrosymmetry of the two samples was further checked by means of nonlinear optical spectroscopy. The room temperature ferroelectric character of the compounds has been investigated through by an original method, derived from that used for thin films, made possible by preparing the sample as thin slices of resin containing inclusions of the coordination compounds.

引用

页数：6

共 51 条

[1] Unprecedented Ferroelectricity and Ferromagnetism in a Cr2+-Based Two-Dimensional Hybrid Perovskite [J].