Synthesis and characterization of switchable ionic compound based on DBU, CH<sub>3</sub>OH, and CO<sub>2</sub>

Yuan Xie; Richard Parnas; Bin Liang; Yingying Liu; Chuandong Tao; Houfang Lu

doi:10.1016/j.cjche.2015.08.005

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Synthesis and characterization of switchable ionic compound based on DBU, CH₃OH, and CO₂

材料与产品工程 | Updated：2026-01-06

- Synthesis and characterization of switchable ionic compound based on DBU, CH₃OH, and CO₂
- Chinese Journal of Chemical Engineering Vol. 23, Issue 10, Pages: 1728-1732(2015)
- Affiliations：
  
  1. College of Chemical Engineering, Sichuan University,Chengdu,China,610065
  2. Institute of New Energy and Low Carbon Technology, Sichuan University,Chengdu,China,610065
  3. Institute of Materials Science, Univ., Storrs CT,Connecticut,of,USA,06269-3136
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.08.005
  CLC：
- Published：2015
- Accepted：
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OH, and CO
DOI：

OH, and CO DOI： 10.1016/j.cjche.2015.08.005.

摘要

Abstract

Switchable ionic compounds have wide applications in chemical processes. A switchable ionic compound based on 1

8-diazabicyclo-[5.4.0

]

-undec-7-ene (DBU)

OH and CO

was synthesized and characterized. DBU/ CH

OH/CO

ionic compound was prepared in the presence of excess methanol

and then the excess methanol was removed by reduced pressure distillation in CO

atmosphere. The product yield (100%) reached the theoretical maximumfor the first time. Its structurewas identified by NMR

FT-IR

and XRD. The crystal product shows 8 strong peaks in XRD at 2

values of 16.0547°

16.4308°

16.7651°

18.8714°

19.2140°

21.9471°

22.0780°

and 25.5661°. Its decomposition onset temperature (53 ℃) was affirmed by TGA

which is lower than its melting point. And its ionic switch point was measured by conductivity.

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Synthesis and characterization of switchable ionic compound based on DBU, CH3OH, and CO2

DOI：10.1016/j.cjche.2015.08.005

摘要

Abstract

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Keywords

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Synthesis and characterization of switchable ionic compound based on DBU, CH₃OH, and CO₂