Naphthalene‐Functionalized,Photoluminescent Room Temperature Ionic Liquids Bearing Small Counterions |
| |
| Authors: | Hongxia Zhu Geping Zhang Mengjun Chen Shengju Zhou Guihua Li Xiaolin Wang Prof. Qingzeng Zhu Prof. Hongguang Li Prof. Jingcheng Hao |
| |
| Affiliation: | 1. Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Ministry of Education, Shandong University, Jinan, Shandong Province, China;2. State Key Laboratory of Solid Lubrication & Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu Province, China |
| |
| Abstract: | Obtaining π‐conjugated room temperature ionic liquids (RTILs) is difficult because of the relatively strong π–π interaction among the π‐moieties. Existing strategies by using bulky counterions greatly hindered further property optimization and potential applications of these intriguing functional fluids through simple ion exchange. Herein, four naphthalene‐functionalized, π‐conjugated RTILs with small counterions (Br?) have been facilely synthesized with high yields. Our strategy is to attach branched alkyl chains to the cationic backbone of the target compounds ( 2 a – d ), which effectively tune inter‐ and intramolecular interactions. Compounds 2 a – d have satisfactory thermal stability (up to 300 °C) and low melting points (
|
| |
| Keywords: | branched alkyl chains imidazole ionic liquids naphthalene photoluminescence |
|
|
