基于镍席夫碱配合物的离子铁电体。

Ionic ferroelectrics based on nickel schiff base complexes.

机构信息

State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, People's Republic of China.

出版信息

Inorg Chem. 2010 Feb 15;49(4):1286-8. doi: 10.1021/ic902136f.

DOI:10.1021/ic902136f

PMID:20073494

Abstract

Two novel homochiral enantiomers, trinuclear ionic clusters (NiL(1))(2)NaNCS(-).MeOH.Et(2)O (1) and (NiL(2))(2)NaNCS(-).MeOH.Et(2)O (2) [H(2)L(1) = N,N'-bis(3-methoxysalicylidene)-(1R,2R)-1,2-diphenylenediamine; H(2)L(2) = N,N'-bis(3-methoxysalicylidene)-(1S,2S)-1,2-diphenylenediamine], have been synthesized and structurally characterized. Both complexes have C(2) symmetry and crystallize in space group P2(1). Ferroelectric measurements reveal that complexes 1 and 2 represent a new type of ionic ferroelectric based on metal-organic coordination with a polarization value higher than that of KH(2)PO(4).

摘要

两种新型的手性对映异构体，三核离子簇(NiL(1))(2)NaNCS(-).MeOH.Et(2)O（1）和(NiL(2))(2)NaNCS(-).MeOH.Et(2)O（2）[H(2)L(1)=N,N'-双（3-甲氧基水杨醛基）-（1R,2R）-1,2-二苯二胺；H(2)L(2)=N,N'-双（3-甲氧基水杨醛基）-（1S,2S）-1,2-二苯二胺]，已经被合成并进行了结构表征。这两个配合物都具有 C(2)对称性，结晶于 P2(1)空间群中。铁电测量表明，配合物 1 和 2 代表了一种新型的基于金属有机配位的离子铁电体，其极化值高于 KH(2)PO(4)。