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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-178.349299
Energy at 298.15K-178.354822
HF Energy-178.059303
Nuclear repulsion energy76.710046
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/LANL2DZ
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' 3140 3024 38.17      
2 A' 3095 2980 41.79      
3 A' 3038 2926 17.38      
4 A' 1551 1494 2.18      
5 A' 1541 1484 5.18      
6 A' 1466 1412 16.14      
7 A' 1422 1369 13.54      
8 A' 1132 1090 11.26      
9 A' 1030 992 47.86      
10 A' 842 811 30.13      
11 A' 387 373 9.22      
12 A" 3181 3063 66.38      
13 A" 3152 3036 2.80      
14 A" 1523 1466 7.16      
15 A" 1295 1247 0.85      
16 A" 1172 1129 5.19      
17 A" 841 810 1.69      
18 A" 253 244 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 15029.2 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 14474.6 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/LANL2DZ
ABC
1.12906 0.29403 0.25649

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

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 2.134 0.157 0.000
H7 1.142 -1.039 0.896
H8 1.142 -1.039 -0.896

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.53901.48761.10021.10022.17732.18322.1832
C21.53902.45582.21352.21351.10531.10201.1020
F31.48762.45582.07452.07453.41922.70952.7095
H41.10022.21352.07451.81042.57802.54413.1172
H51.10022.21352.07451.81042.57803.11722.5441
H62.17731.10533.41922.57802.57801.79361.7936
H72.18321.10202.70952.54413.11721.79361.7922
H82.18321.10202.70953.11722.54411.79361.7922

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.764 C1 C2 H7 110.419
C1 C2 H8 110.419 C2 C1 F3 108.454
C2 C1 H4 112.956 C2 C1 H5 112.956
F3 C1 H4 105.594 F3 C1 H5 105.594
H4 C1 H5 110.714 H6 C2 H7 108.692
H6 C2 H8 108.692 H7 C2 H8 108.810
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability