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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-574.205261
Energy at 298.15K-574.208209
HF Energy-573.450140
Nuclear repulsion energy344.142299
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 MP2/SDD
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' 3210 3098 8.34      
2 A' 1396 1348 4.62      
3 A' 1259 1215 87.07      
4 A' 1075 1038 195.74      
5 A' 1021 985 110.81      
6 A' 797 769 80.53      
7 A' 636 614 30.60      
8 A' 505 488 22.59      
9 A' 453 437 14.54      
10 A' 328 317 0.07      
11 A' 231 223 7.03      
12 A" 1338 1292 2.34      
13 A" 1078 1041 352.49      
14 A" 1023 987 47.53      
15 A" 520 502 1.21      
16 A" 368 355 2.65      
17 A" 198 191 5.09      
18 A" 67 65 1.73      

Unscaled Zero Point Vibrational Energy (zpe) 7751.2 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 7482.2 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 MP2/SDD
ABC
0.11083 0.07464 0.06153

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.122 -0.602 0.000
C2 -0.636 0.755 0.000
F3 1.515 -0.454 0.000
F4 -0.245 -1.352 1.140
F5 -0.245 -1.352 -1.140
F6 -0.245 1.494 -1.155
F7 -0.245 1.494 1.155
H8 -1.724 0.627 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.55401.40111.41291.41292.42102.42102.2174
C21.55402.46742.42712.42711.42611.42611.0951
F31.40112.46742.28092.28092.86822.86823.4145
F41.41292.42712.28092.27993.65602.84562.7211
F51.41292.42712.28092.27992.84563.65602.7211
F62.42101.42612.86823.65602.84562.31092.0668
F72.42101.42612.86822.84563.65602.31092.0668
H82.21741.09513.41452.72112.72112.06682.0668

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.586 C1 C2 F7 108.586
C1 C2 H8 112.506 C2 C1 F3 113.122
C2 C1 F4 109.688 C2 C1 F5 109.688
F3 C1 F4 108.303 F3 C1 F5 108.303
F4 C1 F5 107.573 F6 C2 F7 108.233
F6 C2 H8 109.417 F7 C2 H8 109.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability