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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-575.481309
Energy at 298.15K-575.474268
HF Energy-573.495122
Nuclear repulsion energy365.010126
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 CBS-Q
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' 3330 3330 30.71      
2 A' 1626 1626 3.09      
3 A' 1471 1471 244.15      
4 A' 1353 1353 226.55      
5 A' 1258 1258 182.57      
6 A' 956 956 61.53      
7 A' 794 794 48.18      
8 A' 634 634 19.79      
9 A' 573 573 13.60      
10 A' 394 394 0.17      
11 A' 261 261 5.81      
12 A" 1541 1541 27.23      
13 A" 1397 1397 431.31      
14 A" 1300 1300 146.24      
15 A" 642 642 1.90      
16 A" 458 458 1.72      
17 A" 225 225 3.81      
18 A" 79 79 1.18      

Unscaled Zero Point Vibrational Energy (zpe) 9145.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9145.8 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 CBS-Q
ABC
0.12209 0.08106 0.06694

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.118 -0.598 0.000
C2 -0.597 0.746 0.000
F3 1.418 -0.450 0.000
F4 -0.228 -1.284 1.065
F5 -0.228 -1.284 -1.065
F6 -0.228 1.426 -1.079
F7 -0.228 1.426 1.079
H8 -1.670 0.617 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52231.30811.31381.31382.31952.31952.1618
C21.52232.34282.32212.32211.32771.32771.0810
F31.30812.34282.13122.13122.71882.71883.2669
F41.31382.32212.13122.13053.45582.70982.6127
F51.31382.32212.13122.13052.70983.45582.6127
F62.31951.32772.71883.45582.70982.15891.9743
F72.31951.32772.71882.70983.45582.15891.9743
H82.16181.08103.26692.61272.61271.97431.9743

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.756 C1 C2 F7 108.756
C1 C2 H8 111.151 C2 C1 F3 111.508
C2 C1 F4 109.705 C2 C1 F5 109.705
F3 C1 F4 108.753 F3 C1 F5 108.753
F4 C1 F5 108.353 F6 C2 F7 108.783
F6 C2 H8 109.675 F7 C2 H8 109.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability