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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-178.352042
Energy at 298.15K-178.357566
HF Energy-178.059629
Nuclear repulsion energy76.716678
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/SDD
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' 3139 3030 37.53      
2 A' 3093 2986 41.41      
3 A' 3037 2932 17.17      
4 A' 1551 1497 2.28      
5 A' 1541 1487 5.10      
6 A' 1466 1415 16.12      
7 A' 1422 1372 13.53      
8 A' 1131 1092 11.25      
9 A' 1030 994 47.98      
10 A' 842 813 30.21      
11 A' 387 373 9.22      
12 A" 3179 3069 65.39      
13 A" 3151 3042 2.50      
14 A" 1523 1470 7.18      
15 A" 1295 1250 0.88      
16 A" 1172 1131 5.16      
17 A" 840 811 1.68      
18 A" 253 244 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 15025.0 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 14503.6 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/SDD
ABC
1.12919 0.29410 0.25655

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.592 0.000
C2 1.178 -0.398 0.000
F3 -1.268 -0.186 0.000
H4 -0.036 1.216 0.905
H5 -0.036 1.216 -0.905
H6 2.133 0.158 0.000
H7 1.142 -1.038 0.896
H8 1.142 -1.038 -0.896

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.53861.48761.10021.10022.17692.18282.1828
C21.53862.45542.21322.21321.10531.10191.1019
F31.48762.45542.07452.07453.41882.70922.7092
H41.10022.21322.07451.81052.57762.54373.1168
H51.10022.21322.07451.81052.57763.11682.5437
H62.17691.10533.41882.57762.57761.79351.7935
H72.18281.10192.70922.54373.11681.79351.7921
H82.18281.10192.70923.11682.54371.79351.7921

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.757 C1 C2 H7 110.418
C1 C2 H8 110.418 C2 C1 F3 108.451
C2 C1 H4 112.954 C2 C1 H5 112.954
F3 C1 H4 105.592 F3 C1 H5 105.592
H4 C1 H5 110.725 H6 C2 H7 108.694
H6 C2 H8 108.694 H7 C2 H8 108.815
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability