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/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-476.185035
Energy at 298.15K-476.189110
HF Energy-474.870944
Nuclear repulsion energy272.825850
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/Def2TZVPP
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' 3133 2981 12.28      
2 A' 1513 1439 7.86      
3 A' 1473 1402 19.98      
4 A' 1331 1267 137.73      
5 A' 1213 1154 277.10      
6 A' 1139 1084 85.01      
7 A' 859 818 16.56      
8 A' 674 641 31.23      
9 A' 556 529 8.17      
10 A' 416 395 0.62      
11 A' 220 209 3.07      
12 A" 3204 3049 6.03      
13 A" 1336 1271 125.27      
14 A" 1225 1166 103.54      
15 A" 995 947 57.25      
16 A" 539 513 2.02      
17 A" 355 337 1.19      
18 A" 114 108 5.65      

Unscaled Zero Point Vibrational Energy (zpe) 10146.3 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 9654.2 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/Def2TZVPP
ABC
0.17871 0.09355 0.09224

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.364 0.195 0.000
C2 -1.151 0.234 0.000
F3 0.833 1.450 0.000
F4 0.833 -0.431 1.079
F5 0.833 -0.431 -1.079
F6 -1.646 -1.043 0.000
H7 -1.483 0.759 0.892
H8 -1.483 0.759 -0.892

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 H7 H8
C11.51571.33971.33301.33302.36032.12772.1277
C21.51572.32732.35472.35471.36921.08711.0871
F31.33972.32732.16842.16843.51552.57682.5768
F41.33302.35472.16842.15862.77212.61133.2664
F51.33302.35472.16842.15862.77213.26642.6113
F62.36031.36923.51552.77212.77212.01722.0172
H72.12771.08712.57682.61133.26642.01721.7837
H82.12771.08712.57683.26642.61132.01721.7837

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 109.701 C1 C2 H7 108.544
C1 C2 H8 108.544 C2 C1 F3 109.032
C2 C1 F4 111.343 C2 C1 F5 111.343
F3 C1 F4 108.452 F3 C1 F5 108.452
F4 C1 F5 108.131 F6 C2 H7 109.885
F6 C2 H8 109.885 H7 C2 H8 110.253
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability