| 均苯三酸与N-甲基吡咯烷酮形成的加合物晶体表征 |
| |
| 引用本文： | 彭革,郭霞,成有为,李希.均苯三酸与N-甲基吡咯烷酮形成的加合物晶体表征[J].化学世界,2010,51(10). |
| |
| 作者姓名： | 彭革 郭霞 成有为 李希 |
| |
| 作者单位： | 1. 宁波工程学院化工学院,浙江,宁波,315016;浙江大学化学工程系,浙江,杭州,310027
2. 浙江大学化学工程系,浙江,杭州,310027 |
| |
| 基金项目： | 浙江省重大科技攻关项目 |
| |
| 摘 要： | 均苯三酸(TMA)固体在溶剂N-甲基吡咯烷酮(NMP)中的重结晶是一种新的溶剂化晶体,采用色谱、热重、X-射线衍射方法对新晶体进行了表征,结果表明:TMA-NMP晶体是1个TMA分子与3个NMP分子通过O-H…O的氢键作用形成的加合物结晶体,该晶体不稳定,在75℃以上受热分解后脱除溶剂。计算得出,TMA与NMP之间的氢键键能为-127.9 kJ/mol。
|
| 关 键 词： | 均苯三甲酸 N-甲基吡咯烷酮 加合结晶 |
Characterization of the Adductive Crystal of Trimesic Acid and N-Methyl Pyrrolidone |
| |
| PENG Ge,GUO Xia,CHENG You-wei,LI Xi.Characterization of the Adductive Crystal of Trimesic Acid and N-Methyl Pyrrolidone[J].Chemical World,2010,51(10). |
| |
| Authors: | PENG Ge GUO Xia CHENG You-wei LI Xi |
| |
| Abstract: | The adductive crystals formed by trimesic acid and N-methyl pyrrolidone were characterized with HPLC,TG and XRD.The results showed that the crystal consists of one TMA molecule and three NMP molecules tied by O-H…O hydrogen-bonding.The crystal is unstable above 75 ℃,at which it is prone to decompose and disengage the solvent.The calculated hydrogen-bonding energy between TMA and NMP is-127.9 kJ/mol,belonging to the category of strong hydrogen bond. |
| |
| Keywords: | trimesic acid N-methyl pyrrolidone adductive crystallization |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
