The crystal structures of 1-(2,3,5,6-tetrafluorophenylmethyl)-3-methylimidazolium bromide (2), 1-(2,3,4,5-tetrafluorophenylmethyl)-3-methylimidazolium bromide (3), 1-(2,4,6-trifluorophenylmethyl)-3-methylimidazolium bromide (4) and 1-(2,3,6-trifluorophenylmethyl)-3-methylimidazolium bromide (5) have been determined. The structures contain non-covalent interactions: hydrogen bonding, anion–π and π–π stacking interactions. The strengths of these interactions have been calculated using DFT. The structures and interactions are compared with those of 1-(2,3,4,5,6-pentafluorophenylmethyl)-3-methylimidazolium bromide (1) and 1-(2,6-difluorophenylmethyl)-3-methylimidazolium bromide (6).

1-（2,3,5,6-四氟苯基甲基）-3-甲基咪唑鎓溴化物（2），1-（2,3,4,5-四氟苯基甲基）-3-甲基咪唑鎓溴化物（3），1-的晶体结构已经确定了（2,4,6-三氟苯基甲基）-3-甲基咪唑鎓溴化物（4）和1-（2,3,6-三氟苯基甲基）-3-甲基咪唑鎓溴化物（5）。结构包含非共价相互作用：氢键，阴离子-π和π-π堆积相互作用。这些相互作用的强度已使用DFT计算得出。将结构和相互作用与1-（2,3,4,5,6-五氟苯基甲基）-3-甲基咪唑鎓溴化物（1）和1-（2,6-二氟苯基甲基）-3-甲基咪唑鎓溴化物（6）比较。