Fu Donglu, Song Zongren, Liu Jiankang, Yang Jie, Suo Shilong, Liang Kunhao, Ma Xiaoxue, Fang Dawei
Institute of Rare and Scattered Elements, College of Chemistry, Liaoning University Shenyang Liaoning 110036 China
School of Opto-Electronic Engineering, Zaozhuang University Zaozhuang Shandong 277160 China.
RSC Adv. 2024 Nov 4;14(47):34971-34978. doi: 10.1039/d4ra06593j. eCollection 2024 Oct 29.
A novel ionic liquid (IL) modified by ether was prepared by a two-step synthesis method for the first time in this paper. The structure of 1-(2-ethoxyethyl)-3-ethylimidazolium thiocyanate ([C2O2Im][SCN]) was characterized and analyzed by hydrogen nuclear magnetic resonance (H-NMR), carbon nuclear magnetic resonance (C-NMR), Fourier transform infrared spectroscopy (FT-IR), electrospray ionization-mass spectrometry (ESI-MS), elemental analysis and thermal gravity analysis (TG). Within a specific temperature range from 79 to 393 K, the low temperature heat capacity of [C2O2Im][SCN] was determined, using a high precision low temperature adiabatic calorimeter. Then, the related thermodynamic functions, such as ( - ), ( - ) and ( - ), were calculated, which can provide a theoretical basis for the application of ether-based ILs in the future.
本文首次采用两步合成法制备了一种新型的醚修饰离子液体（IL）。通过氢核磁共振（H-NMR）、碳核磁共振（C-NMR）、傅里叶变换红外光谱（FT-IR）、电喷雾电离质谱（ESI-MS）、元素分析和热重分析（TG）对1-(2-乙氧基乙基)-3-乙基咪唑硫氰酸盐（[C2O2Im][SCN]）的结构进行了表征和分析。在79至393 K的特定温度范围内，使用高精度低温绝热量热仪测定了[C2O2Im][SCN]的低温热容。然后，计算了相关的热力学函数，如( - )、( - )和( - )，可为未来醚基离子液体的应用提供理论依据。
