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IV.C.1. (XIII.D.1.)

Compare vibrational frequencies in CCCBDB for CH3CCl3 (Ethane, 1,1,1-trichloro-)

BLYP/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 2980 29 A1 2951  
2 A1 1415 29 A1 1386  
3 A1 1039 -36 A1 1075  
4 A1 457 -69 A1 526  
5 A1 304 -40 A1 344  
6 A2 284 70 A2 214  
7 E 3066 52 E 3014  
8 E 1470 13 E 1457  
9 E 1091 3 E 1088  
10 E 581 -143 E 724  
11 E 321 -30 E 351  
12 E 213 -26 E 239  
The calculated vibrational frequencies were scaled by 0.9924

See section XIII.C.3 List or set vibrational scaling factors to change the scale factors used here.
See section III.B.3.c Calculate a vibrational scaling factor for a set of molecules to determine the least squares best scaling factor.
See section III.B.3.b List of vibrational scaling factors and their uncertainties for information on where the above scaling factor is from.