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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-178.565653
Energy at 298.15K-178.571259
HF Energy-178.089245
Nuclear repulsion energy78.905759
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/cc-pVDZ
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' 3198 3046 18.16      
2 A' 3098 2950 12.41      
3 A' 3093 2946 42.89      
4 A' 1528 1456 0.19      
5 A' 1503 1431 1.86      
6 A' 1443 1375 34.85      
7 A' 1396 1330 0.96      
8 A' 1139 1085 39.94      
9 A' 1113 1060 51.75      
10 A' 907 864 13.54      
11 A' 409 389 5.74      
12 A" 3207 3055 25.73      
13 A" 3154 3004 33.94      
14 A" 1481 1410 4.77      
15 A" 1312 1250 0.21      
16 A" 1198 1141 5.59      
17 A" 814 775 0.37      
18 A" 271 258 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 15131.4 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 14412.6 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/cc-pVDZ
ABC
1.19877 0.31155 0.27314

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.559 0.000
C2 1.124 -0.457 0.000
F3 -1.229 -0.097 0.000
H4 0.043 1.203 0.896
H5 0.043 1.203 -0.896
H6 2.100 0.055 0.000
H7 1.063 -1.098 0.894
H8 1.063 -1.098 -0.894

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51541.39261.10371.10372.15992.16162.1616
C21.51542.38022.17392.17391.10241.10121.1012
F31.39262.38022.02682.02683.33242.65542.6554
H41.10372.17392.02681.79112.52012.51613.0875
H51.10372.17392.02681.79112.52013.08752.5161
H62.15991.10243.33242.52012.52011.78991.7899
H72.16161.10122.65542.51613.08751.78991.7877
H82.16161.10122.65543.08752.51611.78991.7877

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.197 C1 C2 H7 110.400
C1 C2 H8 110.400 C2 C1 F3 109.796
C2 C1 H4 111.229 C2 C1 H5 111.229
F3 C1 H4 108.007 F3 C1 H5 108.007
H4 C1 H5 108.459 H6 C2 H7 108.636
H6 C2 H8 108.636 H7 C2 H8 108.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability