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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-910.062156
Energy at 298.15K-910.065318
HF Energy-908.792758
Nuclear repulsion energy774.931277
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 1321 1273 30.85      
2 A1 1274 1228 205.49      
3 A1 1124 1083 172.96      
4 A1 717 691 3.54      
5 A1 624 601 3.67      
6 A1 494 476 19.30      
7 A1 356 343 0.12      
8 A1 308 297 0.75      
9 A1 152 147 1.57      
10 A2 1219 1175 0.00      
11 A2 524 505 0.00      
12 A2 330 318 0.00      
13 A2 220 212 0.00      
14 A2 22 21 0.00      
15 B1 1255 1210 346.47      
16 B1 1198 1154 112.50      
17 B1 590 569 2.11      
18 B1 428 413 7.93      
19 B1 212 204 7.13      
20 B1 86 83 0.04      
21 B2 1350 1301 100.55      
22 B2 1203 1159 37.01      
23 B2 976 940 215.07      
24 B2 662 638 62.15      
25 B2 489 471 14.75      
26 B2 328 316 0.03      
27 B2 263 253 4.56      

Unscaled Zero Point Vibrational Energy (zpe) 8863.3 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 8540.7 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
0.05220 0.03046 0.02893

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 0.577
C2 0.000 1.317 -0.230
C3 0.000 -1.317 -0.230
F4 1.145 0.000 1.391
F5 -1.145 0.000 1.391
F6 0.000 2.396 0.642
F7 0.000 -2.396 0.642
F8 1.130 1.390 -1.036
F9 -1.130 1.390 -1.036
F10 -1.130 -1.390 -1.036
F11 1.130 -1.390 -1.036

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7 F8 F9 F10 F11
C11.54451.54451.40541.40542.39682.39682.41072.41072.41072.4107
C21.54452.63422.38232.38231.38733.81411.39001.39003.04253.0425
C31.54452.63422.38232.38233.81411.38733.04253.04251.39001.3900
F41.40542.38232.38232.29062.75922.75922.79763.60593.60592.7976
F51.40542.38232.38232.29062.75922.75923.60592.79762.79763.6059
F62.39681.38733.81412.75922.75924.79172.25952.25954.29294.2929
F72.39683.81411.38732.75922.75924.79174.29294.29292.25952.2595
F82.41071.39003.04252.79763.60592.25954.29292.25973.58312.7807
F92.41071.39003.04253.60592.79762.25954.29292.25972.78073.5831
F102.41073.04251.39003.60592.79764.29292.25953.58312.78072.2597
F112.41073.04251.39002.79763.60594.29292.25952.78073.58312.2597

picture of perfluoropropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.553 C1 C2 F8 110.359
C1 C2 F9 110.359 C1 C3 F7 109.553
C1 C3 F10 110.359 C1 C3 F11 110.359
C2 C1 C3 117.024 C2 C1 F4 107.622
C2 C1 F5 107.622 C3 C1 F4 107.622
C3 C1 F5 107.622 F4 C1 F5 109.155
F6 C2 F8 108.890 F6 C2 F9 108.890
F7 C3 F10 108.890 F7 C3 F11 108.890
F8 C2 F9 108.753 F10 C3 F11 108.753
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability