Review Article
Tribochemistry of Ionic Liquid Lubricant on Magnetic Media
Table 5
Mode assignment and peak positions for the ammonium salt and amide in KBr and as adsorbed on a magnetic layer.
| Peak position/cm−1 | | Amide | Ammonium salt | Vibration mode | Bulk | Film | Balk | Film | |
| 2918 | 2928 | 2918 | 2918 | CH2 asymmetric stretching | 2850 | 2856 | 2850 | 2858 | CH2 symmetric stretching | | | 1674 | 1674 | COO− asymmetric stretching | | | 1404 | 1404 | COO− symmetric stretching | 1692 | | | | CO stretching | 1232 | | 1232 | 1246 | CF2 asymmetric stretching (E1 symmetry) | 1206 | | 1206 | 1218 | CF2 asymmetric stretching (A2 symmetry) + CF3 stretching | 1148 | | 1150 | 1156 | CF2 symmetric stretching (E1 symmetry) |
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