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

Compare vibrational frequencies in CCCBDB for C3F8 (perfluoropropane)

B3PW91/6-31G

Frequency in cm-1
  Calculated   Experimental
Mode Number Symmetry Frequency diff Symmetry Frequency Comment
1 A1 1267 -103 A1 1370 renumbered
2 A1 1212 -50 A1 1262 renumbered
3 A1 1090 -64 A1 1155 renumbered
4 A1 703 -78 A1 781 renumbered
5 A1 607 -58 A1 665 renumbered
6 A1 480 -67 A1 547 renumbered
7 A1 342 -41 A1 383 renumbered
8 A1 294 -24 A1 318 renumbered
9 A1 140 -11 A1 151 renumbered
10 A2 1156        
11 A2 508 -29 A2 537 renumbered
12 A2 316 -31 A2 347 renumbered
13 A2 207 -69 A2 276 renumbered
14 A2 8        
15 B1 1196 -72 B1 1268 renumbered, B1 and B2 switched
16 B1 1141 -14 B1 1155 renumbered, B1 and B2 switched
17 B1 570 -48 B1 618 renumbered, B1 and B2 switched
18 B1 412 -49 B1 461 renumbered, B1 and B2 switched
19 B1 196 -23 B1 219 renumbered, B1 and B2 switched
20 B1 74   B1   renumbered, B1 and B2 switched
21 B2 1279 -71 B2 1350 renumbered, B1 and B2 switched
22 B2 1142 -68 B2 1210 renumbered, B1 and B2 switched
23 B2 946 -61 B2 1008 renumbered, B1 and B2 switched
24 B2 647 -84 B2 731 renumbered, B1 and B2 switched
25 B2 475 -62 B2 537 renumbered, B1 and B2 switched
26 B2 314 -23 B2 337 renumbered, B1 and B2 switched
27 B2 249 -27 B2 276 renumbered, B1 and B2 switched
The calculated vibrational frequencies were scaled by 0.9577

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.