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

Compare vibrational frequencies in CCCBDB for CH3COCH3 (Acetone)

B3LYP/6-31G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3041 22 A1 3019  
2 A1 2931 -6 A1 2937  
3 A1 1752 21 A1 1731  
4 A1 1439 4 A1 1435  
5 A1 1355 -9 A1 1364  
6 A1 1052 -14 A1 1066  
7 A1 755 -22 A1 777  
8 A1 361 -24 A1 385  
9 A2 2978 15 A2 2963  
10 A2 1435 9 A2 1426  
11 A2 862 -15 A2 877  
12 A2 33 -44 A2 77  
13 B1 2985 13 B1 2972  
14 B1 1456 2 B1 1454  
15 B1 1086 -5 B1 1091  
16 B1 467 -17 B1 484  
17 B1 129 4 B1 125  
18 B2 3041 22 B2 3019  
19 B2 2924 -13 B2 2937  
20 B2 1431 21 B2 1410  
21 B2 1357 -7 B2 1364  
22 B2 1196 -20 B2 1216  
23 B2 859 -32 B2 891  
24 B2 510 -20 B2 530  
The calculated vibrational frequencies were scaled by 0.9603

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.