Figure 2.
FT-IR overly spectra of bis-benzimidazolium bis (hexaflourophosphate) precursors (8-10. 2PF6). The weak FT-IR signals labeled as 3 in the red box represent the pure modes of tertiary N-atom in benzimidazolium ring.
FT-IR overly spectra of bis-benzimidazolium bis (hexaflourophosphate) precursors (8-10. 2PF6). The weak FT-IR signals labeled as 3 in the red box represent the pure modes of tertiary N-atom in benzimidazolium ring.