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

Compare vibrational frequencies in CCCBDB for C6H8 (1,3,5-Hexatriene, (Z)-)

HF/6-311G*

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 3062 -35 A1 3097  
2 A1 3029 14 A1 3015  
3 A1 3012 -18 A1 3030  
4 A1 2983 -32 A1 3015  
5 A1 1702 80 A1 1622  
6 A1 1603 33 A1 1570  
7 A1 1410 18 A1 1392  
8 A1 1321 7 A1 1314  
9 A1 1258 76 A1 1182  
10 A1 1072 -11 A1 1083  
11 A1 854 -282 A1 1136  
12 A1 380 -13 A1 393  
13 A1 163 -4 A1 167  
14 A2 1032 54 A2 978  
15 A2 991 71 A2 920  
16 A2 952 69 A2 883  
17 A2 722 13 A2 709  
18 A2 334 3 A2 331  
19 A2 129 -135 A2 264  
20 B1 1017 27 B1 990  
21 B1 956 46 B1 910  
22 B1 834 16 B1 818  
23 B1 590 1 B1 589  
24 B1 91 -267 B1 358  
25 B2 3060 -40 B2 3100  
26 B2 3012 -68 B2 3080  
27 B2 2991 -59 B2 3050  
28 B2 2981 -69 B2 3050  
29 B2 1664 52 B2 1612  
30 B2 1459 7 B2 1452  
31 B2 1361 6 B2 1355  
32 B2 1285 5 B2 1280  
33 B2 1174 26 B2 1148  
34 B2 930 -20 B2 950  
35 B2 660 181 B2 479  
36 B2 342 99 B2 243  
The calculated vibrational frequencies were scaled by 0.9044

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.