return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/6-31G**

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=FULL/6-31G**
 hartrees
Energy at 0K-475.625500
Energy at 298.15K-475.629570
Nuclear repulsion energy271.930909
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=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3172 2964 13.34      
2 A' 1566 1463 5.31      
3 A' 1511 1412 23.11      
4 A' 1362 1272 142.48      
5 A' 1249 1167 263.23      
6 A' 1150 1074 69.30      
7 A' 867 810 18.97      
8 A' 669 625 30.84      
9 A' 551 514 9.48      
10 A' 414 387 0.77      
11 A' 216 202 3.23      
12 A" 3248 3035 14.31      
13 A" 1366 1276 139.08      
14 A" 1250 1168 64.61      
15 A" 1022 955 59.43      
16 A" 531 496 2.78      
17 A" 359 336 1.20      
18 A" 115 108 5.24      

Unscaled Zero Point Vibrational Energy (zpe) 10308.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 9632.2 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=FULL/6-31G**
ABC
0.17676 0.09345 0.09230

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.354 0.197 0.000
C2 -1.152 0.238 0.000
F3 0.830 1.462 0.000
F4 0.830 -0.432 1.088
F5 0.830 -0.432 -1.088
F6 -1.628 -1.057 0.000
H7 -1.490 0.759 0.892
H8 -1.490 0.759 -0.892

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 H7 H8
C11.50631.35151.34431.34432.34562.12432.1243
C21.50632.32972.35862.35861.38011.08711.0871
F31.35152.32972.18452.18453.52002.58392.5839
F41.34432.35862.18452.17552.76022.61623.2752
F51.34432.35862.18452.17552.76023.27522.6162
F62.34561.38013.52002.76022.76022.02822.0282
H72.12431.08712.58392.61623.27522.02821.7844
H82.12431.08712.58393.27522.61622.02821.7844

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 108.629 C1 C2 H7 108.919
C1 C2 H8 108.919 C2 C1 F3 109.094
C2 C1 F4 111.543 C2 C1 F5 111.543
F3 C1 F4 108.259 F3 C1 F5 108.259
F4 C1 F5 108.034 F6 C2 H7 110.014
F6 C2 H8 110.014 H7 C2 H8 110.307
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability