The dual receiver ¹H/¹⁹F inversion-recovery NMR method is applied to measure simultaneously the spin-lattice relaxation times, T₁, of both cation and anion forming ionic liquid (ILs) materials. Two representative classes of ILs comprising 1-alkyl-3-methylimidazolium [C_nMIm]⁺ (n = 2, 12) as cation and bis(trifluoromethylsulfonyl)imide [TFSI]⁻ or tetrafluoroborate [BF₄]⁻ as anions have been considered. The experimental data, acquired on a wide range of temperature (278–333 K), have been analysed according to the Bloembergen, Purcell, and Pound model and provide the rotational dynamic parameters, such as the activation energy and the correlation time τ_c of the rotational segmental motion. The overall dynamic behaviour is dictated by the length of the alkyl chain and the capability of the anion to disrupt or stabilize the apolar domain structure.

应用双重接收器¹ H / ¹⁹ F反转恢复NMR方法同时测量阳离子和阴离子形成离子液体（ILs）材料的自旋晶格弛豫时间T ₁。两类代表性的IL，包括1-烷基-3-甲基咪唑鎓[C _n MIm] ⁺（n = 2，12）作为阳离子和双（三氟甲基磺酰基）酰亚胺[TFSI] ^-或四氟硼酸酯[BF ₄ ] ^-因为已经考虑到了阴离子。实验数据，在一个宽的温度范围（278-333 K）的取得，已根据布隆伯根，赛尔分析，镑模型，并提供旋转动力参数，如活化能和相关时间τ _{c ^}的旋转分段运动。总体动力学行为由烷基链的长度和阴离子破坏或稳定非极性结构域结构的能力决定。