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

Compare vibrational frequencies in CCCBDB for C3H6O (Oxetane)

B3LYP/cc-pVDZ

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 2980 21 A1 2959  
2 A1 2919 -11 A1 2930  
3 A1 1475 2 A1 1473  
4 A1 1419 -42 A1 1461  
5 A1 1329 -13 A1 1342  
6 A1 1020 -114 A1 1134  
7 A1 902 -116 A1 1018  
8 A1 796 -112 A1 908  
9 A2 2951 -49 A2 3000  
10 A2 1185 -98 A2 1283  
11 A2 1116 -69 A2 1185  
12 A2 810 -176 A2 986  
13 B1 3035 28 B1 3007  
14 B1 2950 10 B1 2940  
15 B1 1146 -79 B1 1225  
16 B1 1100 -42 B1 1142  
17 B1 737 -99 B1 836  
18 B1 66 -24 B1 90  
19 B2 2908 -58 B2 2966  
20 B2 1444 -64 B2 1508  
21 B2 1258 -200 B2 1458  
22 B2 1217 -146 B2 1363  
23 B2 1011 -217 B2 1228  
24 B2 919 -17 B2 936  
The calculated vibrational frequencies were scaled by 0.97

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.