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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: MP4/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/6-311G**
 hartrees
Energy at 0K-575.010897
Energy at 298.15K-575.014328
HF Energy-573.668782
Nuclear repulsion energy359.015559
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 MP4/6-311G**
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' 3138 3043        
2 A' 1474 1430        
3 A' 1336 1295        
4 A' 1222 1185        
5 A' 1149 1114        
6 A' 874 848        
7 A' 724 702        
8 A' 579 562        
9 A' 522 507        
10 A' 365 354        
11 A' 246 239        
12 A" 1410 1367        
13 A" 1248 1210        
14 A" 1173 1137        
15 A" 585 568        
16 A" 417 405        
17 A" 213 206        
18 A" 76 74        

Unscaled Zero Point Vibrational Energy (zpe) 8375.5 cm-1
Scaled (by 0.9697) Zero Point Vibrational Energy (zpe) 8121.7 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 MP4/6-311G**
ABC
0.12167 0.08056 0.06658

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.120 -0.603 0.000
C2 -0.604 0.749 0.000
F3 1.445 -0.442 0.000
F4 -0.233 -1.300 1.089
F5 -0.233 -1.300 -1.089
F6 -0.233 1.439 -1.103
F7 -0.233 1.439 1.103
H8 -1.689 0.607 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53291.33451.34041.34042.34712.34712.1765
C21.53292.36972.34952.34951.35291.35291.0942
F31.33452.36972.17662.17662.75152.75153.3050
F41.34042.34952.17662.17743.50802.73932.6352
F51.34042.34952.17662.17742.73933.50802.6352
F62.34711.35292.75153.50802.73932.20542.0067
F72.34711.35292.75152.73933.50802.20542.0067
H82.17651.09423.30502.63522.63522.00672.0067

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.687 C1 C2 F7 108.687
C1 C2 H8 110.780 C2 C1 F3 111.281
C2 C1 F4 109.528 C2 C1 F5 109.528
F3 C1 F4 108.918 F3 C1 F5 108.918
F4 C1 F5 108.620 F6 C2 F7 109.191
F6 C2 H8 109.732 F7 C2 H8 109.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability