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All results from a given calculation for CF3CH2F (1,1,1,2-tetrafluoroethane)

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-472.766098
Energy at 298.15K-472.769990
Nuclear repulsion energy266.382434
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 MP4/3-21G
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' 3094 3001        
2 A' 1586 1538        
3 A' 1480 1435        
4 A' 1312 1272        
5 A' 1238 1200        
6 A' 1089 1056        
7 A' 813 788        
8 A' 626 607        
9 A' 521 505        
10 A' 390 378        
11 A' 193 187        
12 A" 3143 3048        
13 A" 1388 1346        
14 A" 1227 1190        
15 A" 1035 1004        
16 A" 504 488        
17 A" 329 319        
18 A" 110 107        

Unscaled Zero Point Vibrational Energy (zpe) 10038.2 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 9735.1 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 MP4/3-21G
ABC
0.16831 0.08996 0.08888

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.360 0.196 0.000
C2 -1.156 0.257 0.000
F3 0.843 1.492 0.000
F4 0.843 -0.450 1.116
F5 0.843 -0.450 -1.116
F6 -1.671 -1.070 0.000
H7 -1.479 0.795 0.896
H8 -1.479 0.795 -0.896

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 H7 H8
C11.51691.38371.37691.37692.39312.13192.1319
C21.51692.34992.39602.39601.42351.09401.0940
F31.38372.34992.24002.24003.58982.58532.5853
F41.37692.39602.24002.23212.81992.64443.3155
F51.37692.39602.24002.23212.81993.31552.6444
F62.39311.42353.58982.81992.81992.07782.0778
H72.13191.09402.58532.64443.31552.07781.7918
H82.13191.09402.58533.31552.64442.07781.7918

picture of 1,1,1,2-tetrafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.912 C1 C2 H7 108.393
C1 C2 H8 108.393 C2 C1 F3 108.129
C2 C1 F4 111.693 C2 C1 F5 111.693
F3 C1 F4 108.466 F3 C1 F5 108.466
F4 C1 F5 108.298 F6 C2 H7 110.565
F6 C2 H8 110.565 H7 C2 H8 109.949
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability