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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP4/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/TZVP
 hartrees
Energy at 0K-575.085348
Energy at 298.15K-575.088756
HF Energy-573.738671
Nuclear repulsion energy358.289991
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 MP4/TZVP
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' 3137 3020        
2 A' 1462 1408        
3 A' 1324 1275        
4 A' 1210 1165        
5 A' 1143 1101        
6 A' 868 836        
7 A' 725 699        
8 A' 580 558        
9 A' 524 505        
10 A' 361 347        
11 A' 246 237        
12 A" 1408 1356        
13 A" 1225 1180        
14 A" 1152 1110        
15 A" 585 564        
16 A" 415 400        
17 A" 211 203        
18 A" 72 70        

Unscaled Zero Point Vibrational Energy (zpe) 8323.8 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 8015.0 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 MP4/TZVP
ABC
0.12171 0.07984 0.06613

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.121 -0.605 0.000
C2 -0.604 0.753 0.000
F3 1.447 -0.454 0.000
F4 -0.234 -1.304 1.088
F5 -0.234 -1.304 -1.088
F6 -0.234 1.448 -1.102
F7 -0.234 1.448 1.102
H8 -1.688 0.614 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53981.33451.34151.34152.35692.35692.1813
C21.53982.38032.35692.35691.35411.35411.0922
F31.33452.38032.17572.17572.76752.76753.3118
F41.34152.35692.17572.17673.51742.75232.6417
F51.34152.35692.17572.17672.75233.51742.6417
F62.35691.35412.76753.51742.75232.20382.0053
F72.35691.35412.76752.75233.51742.20382.0053
H82.18131.09223.31182.64172.64172.00532.0053

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.895 C1 C2 F7 108.895
C1 C2 H8 110.798 C2 C1 F3 111.615
C2 C1 F4 109.579 C2 C1 F5 109.579
F3 C1 F4 108.782 F3 C1 F5 108.782
F4 C1 F5 108.440 F6 C2 F7 108.925
F6 C2 H8 109.647 F7 C2 H8 109.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability