Citation: He Jun, Qi Meiling. A new type of triptycene-based stationary phases with alkylated benzimidazolium cations for gas chromatographic separations[J]. Chinese Chemical Letters, ;2019, 30(7): 1415-1418. doi: 10.1016/j.cclet.2019.03.008 shu

A new type of triptycene-based stationary phases with alkylated benzimidazolium cations for gas chromatographic separations

He Jun ,
Qi Meiling ^*,

Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Analysis & Testing Center, Beijing Institute of Technology, Beijing 100081, China

mlqi@bit.edu.cn

Received Date: 25 January 2019
Revised Date: 1 March 2019
Accepted Date: 4 March 2019
Available Online: 5 July 2019

Figures(3)

Favorable physicochemical properties and unique molecular recognition capability endow triptycenebased materials with good potential as stationary phases for gas chromatography (GC). This work reports a new type of triptycene-based materials functionalized by three benzimidazolium cations with different peripheral alkyl lengths (denoted as TP-3Bim-5C and TP-3Bim-12C) and their GC separation performance. As a result, they shared high resolving performance for the naphthalene isomers but differed for the benzene derivatives with varying polarity. Moreover, their capillary columns exhibited good repeatability and thermal stability. This work presents a facile strategy for tailoring the selectivity of the TP-based stationary phases and demonstrates their promising future for chromatographic analysis.
- Triptycene-based materials,
- Benzimidazolium cation,
- Gas chromatography,
- Stationary phase,
- Separation performance
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