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Compare vibrational frequencies in CCCBDB for CHOCHCHCH3 (2-Butenal)

DREIDING

18 11 26 13 55
Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency Scaled
Frequency
Harm.
diff
Fund.
diff
Symmetry Harmonic
Frequency
Fundamental
Frequency
Comment
1 A' 3030 2837   -221 A'   3058  
2 A' 3019 2825   -170 A'   2995  
3 A' 3000 2808   -155 A'   2963  
4 A' 2993 2801   -137 A'   2938  
5 A' 2917 2730   -75 A'   2805  
6 A' 2126 1990   270 A'   1720  
7 A' 1921 1798   149 A'   1649  
8 A' 1840 1723   268 A'   1455  
9 A' 1704 1595   204 A'   1391  
10 A' 1642 1537   162 A'   1375  
11 A' 1554 1455   151 A'   1304  
12 A' 1460 1367   114 A'   1253  
13 A' 1187 1111   -36 A'   1147  
14 A' 1160 1086   12 A'   1074  
15 A' 1054 987   14 A'   973  
16 A' 618 579   40 A'   539  
17 A' 487 456   -8 A'   464  
18 A' 318 298   68 A'   230  
19 A" 3030 2836   -144 A"   2980  
20 A" 1667 1561   106 A"   1455  
21 A" 1339 1253   211 A"   1042  
22 A" 1322 1237   264 A"   973  
23 A" 1059 992   64 A"   928  
24 A" 932 872   92 A"   780  
25 A" 309 289   -6 A"   295  
26 A" 183 171   -2 A"   173  
27 A" 93 87   -35 A"   122  
The calculated vibrational frequencies were scaled by 0.936

See section Calculated; Vibrations; Scale Factors; Set scaling factors to change the scale factors used here.
See section Calculated; Vibrations; Scale Factors; Calculate a scale factor to determine the least squares best scaling factor.
See section Calculated; Vibrations; Scale Factors; Scale factor uncertainty for information on where the above scaling factor is from.