Proton-transfer supramolecular salts of D-/L-tartaric acid and 1-(2-Pyrimidyl)piperazine

被引:22
|
作者
Ding, Xue-Hua [1 ]
Li, Yong-Hua [1 ]
Wang, Shi [1 ]
Huang, Wei [1 ,2 ]
机构
[1] Nanjing Univ Posts & Telecommun, Inst Adv Mat IAM, Key Lab Organ Elect & Informat Displays KLOEID, Nanjing 210046, Jiangsu, Peoples R China
[2] Nanjing Univ Technol, Inst Adv Mat, Jiangsu Singapore Joint Res Ctr Organ Bioelect &, Nanjing 211816, Jiangsu, Peoples R China
关键词
Proton-transfer; Supramolecular salts; Hydrogen bonding; Supramolecular synthons; 3D framework; HYDROGEN-BOND; NONCOVALENT SYNTHESIS; TARTRATE; FERROELECTRICS; CHEMISTRY; COMPLEX;
D O I
10.1016/j.molstruc.2013.12.054
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ionic supramolecular salts 1 and 2 were prepared by single-proton transfer reactions between 1-(2-pyrimidyl)piperazine and D-/L-tartaric acid. An interesting feature in the tartrate is the head-to-tail arrangement and very wide range of anionic substructures observed through hydrogen-bonding interactions, including ring motifs, infinite double zigzag chain and three-dimensional supramolecular framework. Thermal analysis revealed that salts 1 and 2 undergo an irreversible phase transition at about 158 degrees C, which is ascribed to the loss of water molecule. The temperature- and frequency-dependent dielectric constants in 2 suggested a low-frequency thermal fluctuation above 100 degrees C. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:61 / 67
页数:7
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