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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-178.801354
Energy at 298.15K-178.806997
HF Energy-178.149841
Nuclear repulsion energy79.696630
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/cc-pVTZ
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' 3184 3022 17.20      
2 A' 3115 2958 34.95      
3 A' 3107 2950 8.90      
4 A' 1559 1480 0.75      
5 A' 1530 1452 1.68      
6 A' 1455 1382 25.70      
7 A' 1415 1344 2.91      
8 A' 1151 1093 34.52      
9 A' 1114 1057 64.37      
10 A' 913 867 12.59      
11 A' 417 396 5.84      
12 A" 3196 3035 24.90      
13 A" 3153 2994 18.29      
14 A" 1511 1434 5.30      
15 A" 1335 1267 0.27      
16 A" 1213 1151 4.85      
17 A" 823 782 0.52      
18 A" 280 266 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 15235.1 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 14464.3 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/cc-pVTZ
ABC
1.22643 0.31692 0.27788

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.550 0.000
C2 1.111 -0.453 0.000
F3 -1.219 -0.093 0.000
H4 0.061 1.183 0.881
H5 0.061 1.183 -0.881
H6 2.067 0.060 0.000
H7 1.057 -1.084 0.880
H8 1.057 -1.084 -0.880

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.49711.37801.08631.08632.12472.13572.1357
C21.49712.35732.13452.13451.08531.08421.0842
F31.37802.35732.01012.01013.28952.63312.6331
H41.08632.13452.01011.76242.46262.47563.0384
H51.08632.13452.01011.76242.46263.03842.4756
H62.12471.08533.28952.46262.46261.76191.7619
H72.13571.08422.63312.47563.03841.76191.7607
H82.13571.08422.63313.03842.47561.76191.7607

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.698 C1 C2 H7 110.645
C1 C2 H8 110.645 C2 C1 F3 110.080
C2 C1 H4 110.413 C2 C1 H5 110.413
F3 C1 H4 108.731 F3 C1 H5 108.731
H4 C1 H5 108.424 H6 C2 H7 108.610
H6 C2 H8 108.610 H7 C2 H8 108.578
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability