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

Compare vibrational frequencies in CCCBDB for CH3CHClCH3 (Propane, 2-chloro-)

HF/CEP-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A' 3021 16 A' 3005  
2 A' 2995 40 A' 2955  
3 A' 2976 49 A' 2927  
4 A' 2902 24 A' 2878  
5 A' 1480 8 A' 1472  
6 A' 1466 12 A' 1454  
7 A' 1418 28 A' 1390  
8 A' 1259 -11 A' 1270  
9 A' 1176 13 A' 1163  
10 A' 1066 1 A' 1065  
11 A' 860 -28 A' 888  
12 A' 541 -92 A' 633  
13 A' 397 -21 A' 418  
14 A' 314 -22 A' 336  
15 A' 246 -7 A' 253  
16 A" 2997 0 A" 2997  
17 A" 2971 -14 A" 2985  
18 A" 2897 -50 A" 2947  
19 A" 1465 -7 A" 1472  
20 A" 1456 2 A" 1454  
21 A" 1406 29 A" 1377  
22 A" 1342 8 A" 1334  
23 A" 1127 4 A" 1123  
24 A" 944 -28 A" 972  
25 A" 938 2 A" 936  
26 A" 297 -20 A" 317  
27 A" 220 -56 A" 276  
The calculated vibrational frequencies were scaled by 0.9014

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.