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All results from a given calculation for C3F8 (perfluoropropane)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-910.885173
Energy at 298.15K-910.888713
HF Energy-909.118827
Nuclear repulsion energy796.347604
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1446 1377 8.39      
2 A1 1344 1280 325.70      
3 A1 1198 1141 190.70      
4 A1 787 750 2.69      
5 A1 672 640 3.53      
6 A1 540 514 10.56      
7 A1 382 364 0.08      
8 A1 323 308 0.49      
9 A1 158 150 0.89      
10 A2 1292 1231 0.00      
11 A2 567 540 0.00      
12 A2 352 335 0.00      
13 A2 225 215 0.00      
14 A2 20 19 0.00      
15 B1 1336 1272 513.51      
16 B1 1278 1217 118.76      
17 B1 630 600 1.30      
18 B1 463 441 3.66      
19 B1 216 206 4.15      
20 B1 89 85 0.04      
21 B2 1448 1379 125.15      
22 B2 1278 1217 57.98      
23 B2 1041 991 230.79      
24 B2 728 693 54.51      
25 B2 534 508 8.97      
26 B2 343 327 0.02      
27 B2 270 257 3.38      

Unscaled Zero Point Vibrational Energy (zpe) 9478.9 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 9026.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G*
ABC
0.05543 0.03201 0.03025

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.585
C2 0.000 1.300 -0.232
C3 0.000 -1.300 -0.232
F4 1.105 0.000 1.367
F5 -1.105 0.000 1.367
F6 0.000 2.342 0.607
F7 0.000 -2.342 0.607
F8 1.090 1.362 -1.007
F9 -1.090 1.362 -1.007
F10 -1.090 -1.362 -1.007
F11 1.090 -1.362 -1.007

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7 F8 F9 F10 F11
C11.53531.53531.35381.35382.34252.34252.36162.36162.36162.3616
C21.53532.59992.33812.33811.33783.73761.33901.33902.97892.9789
C31.53532.59992.33812.33813.73761.33782.97892.97891.33901.3390
F41.35382.33812.33812.21082.69942.69942.73653.50843.50842.7365
F51.35382.33812.33812.21082.69942.69943.50842.73652.73653.5084
F62.34251.33783.73762.69942.69944.68482.18022.18024.18484.1848
F72.34253.73761.33782.69942.69944.68484.18484.18482.18022.1802
F82.36161.33902.97892.73653.50842.18024.18482.18033.48882.7236
F92.36161.33902.97893.50842.73652.18024.18482.18032.72363.4888
F102.36162.97891.33903.50842.73654.18482.18023.48882.72362.1803
F112.36162.97891.33902.73653.50844.18482.18022.72363.48882.1803

picture of perfluoropropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.045 C1 C2 F8 110.310
C1 C2 F9 110.310 C1 C3 F7 109.045
C1 C3 F10 110.310 C1 C3 F11 110.310
C2 C1 C3 115.704 C2 C1 F4 107.890
C2 C1 F5 107.890 C3 C1 F4 107.890
C3 C1 F5 107.890 F4 C1 F5 109.479
F6 C2 F8 109.070 F6 C2 F9 109.070
F7 C3 F10 109.070 F7 C3 F11 109.070
F8 C2 F9 109.008 F10 C3 F11 109.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability