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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-178.657326
Energy at 298.15K-178.662961
HF Energy-178.121301
Nuclear repulsion energy79.282552
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/6-311G*
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' 3185 3017 21.69      
2 A' 3108 2943 40.42      
3 A' 3094 2930 11.93      
4 A' 1572 1489 0.95      
5 A' 1542 1460 2.85      
6 A' 1473 1395 34.76      
7 A' 1439 1362 4.26      
8 A' 1160 1098 29.36      
9 A' 1110 1051 66.18      
10 A' 915 867 14.29      
11 A' 419 397 6.59      
12 A" 3199 3030 37.04      
13 A" 3164 2997 21.24      
14 A" 1524 1444 7.54      
15 A" 1338 1267 0.09      
16 A" 1225 1160 5.88      
17 A" 829 785 0.55      
18 A" 277 262 0.71      

Unscaled Zero Point Vibrational Energy (zpe) 15285.8 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 14477.2 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=FULL/6-311G*
ABC
1.21065 0.31418 0.27532

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.559 0.000
C2 1.123 -0.450 0.000
F3 -1.223 -0.104 0.000
H4 0.029 1.193 0.890
H5 0.029 1.193 -0.890
H6 2.091 0.057 0.000
H7 1.062 -1.084 0.885
H8 1.062 -1.084 -0.885

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50951.39131.09251.09252.15052.14752.1475
C21.50952.37122.16442.16441.09271.09081.0908
F31.39132.37122.01012.01013.31802.63922.6392
H41.09252.16442.01011.77962.51652.49993.0660
H51.09252.16442.01011.77962.51653.06602.4999
H62.15051.09273.31802.51652.51651.77321.7732
H72.14751.09082.63922.49993.06601.77321.7705
H82.14751.09082.63923.06602.49991.77321.7705

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.442 C1 C2 H7 110.314
C1 C2 H8 110.314 C2 C1 F3 109.590
C2 C1 H4 111.566 C2 C1 H5 111.566
F3 C1 H4 107.443 F3 C1 H5 107.443
H4 C1 H5 109.062 H6 C2 H7 108.604
H6 C2 H8 108.604 H7 C2 H8 108.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability