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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-475.589994
Energy at 298.15K-475.594040
HF Energy-474.654690
Nuclear repulsion energy271.516162
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 MP2/6-31G*
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' 3152 2972 11.29      
2 A' 1567 1478 5.34      
3 A' 1507 1421 24.69      
4 A' 1361 1283 140.14      
5 A' 1245 1174 263.14      
6 A' 1143 1078 70.28      
7 A' 865 816 19.86      
8 A' 668 630 31.10      
9 A' 549 518 9.53      
10 A' 413 389 0.78      
11 A' 216 204 3.26      
12 A" 3224 3040 12.54      
13 A" 1364 1286 141.28      
14 A" 1246 1175 62.05      
15 A" 1021 963 60.22      
16 A" 529 499 2.66      
17 A" 358 338 1.37      
18 A" 115 108 5.47      

Unscaled Zero Point Vibrational Energy (zpe) 10270.8 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 9685.4 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 MP2/6-31G*
ABC
0.17627 0.09319 0.09203

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.362 0.200 0.000
C2 -1.152 0.234 0.000
F3 0.829 1.468 0.000
F4 0.829 -0.433 1.090
F5 0.829 -0.433 -1.090
F6 -1.628 -1.061 0.000
H7 -1.489 0.762 0.896
H8 -1.489 0.762 -0.896

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 H7 H8
C11.51421.35081.34371.34372.35612.13192.1319
C21.51422.33342.35682.35681.37981.09331.0933
F31.35082.33342.19052.19053.52572.58312.5831
F41.34372.35682.19052.17932.76032.61503.2775
F51.34372.35682.19052.17932.76033.27752.6150
F62.35611.37983.52572.76032.76032.03622.0362
H72.13191.09332.58312.61503.27752.03621.7913
H82.13191.09332.58313.27752.61502.03621.7913

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 108.918 C1 C2 H7 108.615
C1 C2 H8 108.615 C2 C1 F3 108.936
C2 C1 F4 110.969 C2 C1 F5 110.969
F3 C1 F4 108.771 F3 C1 F5 108.771
F4 C1 F5 108.372 F6 C2 H7 110.313
F6 C2 H8 110.313 H7 C2 H8 110.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability