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

Compare vibrational frequencies in CCCBDB for C3H6O (Oxetane)

HF/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 2947 -12 A1 2959  
2 A1 2931 1 A1 2930  
3 A1 1533 60 A1 1473  
4 A1 1489 28 A1 1461  
5 A1 1353 11 A1 1342  
6 A1 986 -148 A1 1134  
7 A1 871 -147 A1 1018  
8 A1 805 -103 A1 908  
9 A2 2989 -11 A2 3000  
10 A2 1229 -54 A2 1283  
11 A2 1116 -69 A2 1185  
12 A2 843 -143 A2 986  
13 B1 3002 -5 B1 3007  
14 B1 2972 32 B1 2940  
15 B1 1199 -26 B1 1225  
16 B1 1118 -24 B1 1142  
17 B1 760 -76 B1 836  
18 B1 109 19 B1 90  
19 B2 2934 -32 B2 2966  
20 B2 1512 4 B2 1508  
21 B2 1305 -153 B2 1458  
22 B2 1276 -87 B2 1363  
23 B2 970 -258 B2 1228  
24 B2 904 -32 B2 936  
The calculated vibrational frequencies were scaled by 0.9029

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.