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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-574.662875
Energy at 298.15K-574.666336
HF Energy-573.536828
Nuclear repulsion energy358.956984
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 MP3/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3228 3004 12.32      
2 A' 1508 1404 1.19      
3 A' 1367 1272 171.97      
4 A' 1252 1165 195.38      
5 A' 1174 1092 134.37      
6 A' 893 831 51.68      
7 A' 732 681 36.85      
8 A' 581 540 17.80      
9 A' 522 486 10.26      
10 A' 367 341 0.07      
11 A' 249 231 4.46      
12 A" 1424 1325 14.35      
13 A" 1283 1193 371.64      
14 A" 1204 1120 114.89      
15 A" 590 549 1.11      
16 A" 420 391 1.44      
17 A" 214 199 2.60      
18 A" 84 78 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 8543.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 7950.0 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 MP3/6-31+G**
ABC
0.12162 0.08059 0.06661

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.119 -0.600 0.000
C2 -0.609 0.746 0.000
F3 1.444 -0.438 0.000
F4 -0.232 -1.302 1.089
F5 -0.232 -1.302 -1.089
F6 -0.232 1.438 -1.103
F7 -0.232 1.438 1.103
H8 -1.688 0.611 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52981.33521.34211.34212.34402.34402.1752
C21.52982.36982.34922.34921.35551.35551.0874
F31.33522.36982.17772.17772.74742.74743.3032
F41.34212.34922.17772.17773.50862.74002.6389
F51.34212.34922.17772.17772.74003.50862.6389
F62.34401.35552.74743.50862.74002.20552.0044
F72.34401.35552.74742.74003.50862.20552.0044
H82.17521.08743.30322.63892.63892.00442.0044

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.512 C1 C2 F7 108.512
C1 C2 H8 111.306 C2 C1 F3 111.432
C2 C1 F4 109.598 C2 C1 F5 109.598
F3 C1 F4 108.855 F3 C1 F5 108.855
F4 C1 F5 108.444 F6 C2 F7 108.889
F6 C2 H8 109.786 F7 C2 H8 109.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability