| No. | Compounds | ν(P)-O-C | νP-O-(C) | Ring Vibration | ν P=S | νP-S | ν (Ti-S) | ν (Ti-Cl) |
| 1 | CpTiCl[S2P(OEt)2]2 | 1016.7 s | 810.0 s | -- | 656.8 m | 540.0 m | 407.0 m | 320 |
| 2 | CpTiCl[S2P (OPr-n)2]2 | 997.0 s | 850.5 m | -- | 630.7 m | 544.9 m | 440.0 w | 319 |
| 3 | CpTiCl[S2P (OPr-i)2 ]2 | 974.0 m | 889.1 m | -- | 654.9 m | 542.0 m | 402.0 m | 308 |
| 4 | CpTiCl[S2P (OBu-i)2]2 | 990.0s | 820.6 s | -- | 650.0 m | 532.0 m | 413.0 w | 325 |
| 5 | CpTiCl[S2P(OPh)2]2 | 1098.0 m | 820.3 s | -- | 670.5 s | 515.0 w | 422.0w | 326 |
| 6 | CpTiCl[S2POCH2CMe2CH2O]2 | 1056.8 s | 815.8 m | 912.3 m | 684.7 m | 508.3 m | 410.0 w | 309 |
| 7 | CpTiCl[S2POCH2CEt2CH2O]2 | 1020.4 s | 830.0 m | 940.0 m | 660.0 m | 530.0 m | 407 0 m | 316 |
| 8 | CpTiCl[S2POCMe2CMe2O]2 | 1010.7 s | 858.8 s | 923.9 m | 661.7 m | 580.0 m | 409.0 m | 326 |