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

using model chemistry: CISD/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 CISD/3-21G*
 hartrees
Energy at 0K-472.667476
Energy at 298.15K-472.671520
Nuclear repulsion energy269.326995
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 CISD/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' 3212 3001 6.24      
2 A' 1635 1528 3.63      
3 A' 1535 1435 3.23      
4 A' 1388 1297 186.15      
5 A' 1308 1223 207.76      
6 A' 1153 1077 39.43      
7 A' 861 804 12.63      
8 A' 658 615 37.92      
9 A' 546 510 20.51      
10 A' 410 383 1.50      
11 A' 204 191 4.92      
12 A" 3262 3048 10.79      
13 A" 1452 1357 133.15      
14 A" 1277 1193 48.50      
15 A" 1078 1008 41.58      
16 A" 528 493 8.10      
17 A" 347 324 1.02      
18 A" 114 107 7.82      

Unscaled Zero Point Vibrational Energy (zpe) 10484.2 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 9796.4 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 CISD/3-21G*
ABC
0.17236 0.09187 0.09072

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.356 0.192 0.000
C2 -1.146 0.255 0.000
F3 0.837 1.472 0.000
F4 0.837 -0.444 1.102
F5 0.837 -0.444 -1.102
F6 -1.656 -1.056 0.000
H7 -1.469 0.787 0.888
H8 -1.469 0.787 -0.888

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 H7 H8
C11.50391.36721.36031.36032.36822.11552.1155
C21.50392.32652.37422.37421.40721.08441.0844
F31.36722.32652.21072.21073.55072.56442.5644
F41.36032.37422.21072.20422.79362.62283.2857
F51.36032.37422.21072.20422.79363.28572.6228
F62.36821.40723.55072.79362.79362.05452.0545
H72.11551.08442.56442.62283.28572.05451.7768
H82.11551.08442.56443.28572.62282.05451.7768

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 108.836 C1 C2 H7 108.552
C1 C2 H8 108.552 C2 C1 F3 108.163
C2 C1 F4 111.877 C2 C1 F5 111.877
F3 C1 F4 108.292 F3 C1 F5 108.292
F4 C1 F5 108.221 F6 C2 H7 110.416
F6 C2 H8 110.416 H7 C2 H8 110.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability