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

Compare vibrational frequencies in CCCBDB for C3H6O2 (1,3-Dioxolane)

PBEPBE/6-31+G**

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A 3029 57 A 2972 reassigned as C2 from C2V by CCCBDB
2 A 3025 168 A 2857  
3 A 2996 107 A 2889  
4 A 2933 1424 A 1509  
5 A 2907 1427 A 1480  
6 A 2828 1467 A 1361  
7 A 1470 224 A 1246  
8 A 1456 246 A 1210  
9 A 1445 358 A 1087  
10 A 1349 319 A 1030  
11 A 1305 296 A 1009  
12 A 1283 344 A 939  
13 A 1211 553 A 658  
14 A 1172   A    
15 A 1163 -1835 B 2998  
16 A 1125 -1839 B 2964  
17 A 1099 -1790 B 2889  
18 A 1052 -428 B 1480  
19 A 1008 -389 B 1397  
20 A 943 -384 B 1327  
21 A 915 -371 B 1286  
22 A 892 -266 B 1158  
23 A 816 -145 B 961  
24 A 701 -220 B 921  
25 A 675 -48 B 723  
26 A 296 -384 B 680  
27 A 29   B    
The calculated vibrational frequencies were scaled by 0.9886

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.