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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: CID/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-31G(2df,p)
 hartrees
Energy at 0K-178.614673
Energy at 298.15K-178.620324
Nuclear repulsion energy79.880642
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 CID/6-31G(2df,p)
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' 3249 3249 19.49      
2 A' 3165 3165 8.63      
3 A' 3161 3161 36.87      
4 A' 1601 1601 0.79      
5 A' 1568 1568 1.36      
6 A' 1510 1510 31.37      
7 A' 1467 1467 1.18      
8 A' 1202 1202 68.74      
9 A' 1143 1143 30.99      
10 A' 942 942 8.63      
11 A' 421 421 5.47      
12 A" 3258 3258 27.94      
13 A" 3209 3209 26.71      
14 A" 1549 1549 3.98      
15 A" 1367 1367 0.41      
16 A" 1254 1254 5.39      
17 A" 838 838 0.42      
18 A" 267 267 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 15583.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15583.4 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 CID/6-31G(2df,p)
ABC
1.22840 0.31856 0.27922

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.554 0.000
C2 1.109 -0.470 0.000
F3 -1.213 -0.078 0.000
H4 0.051 1.189 0.882
H5 0.051 1.189 -0.882
H6 2.077 0.023 0.000
H7 1.042 -1.101 0.881
H8 1.042 -1.101 -0.881

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50971.36771.08791.08792.14362.14522.1452
C21.50972.35472.15632.15631.08681.08571.0857
F31.36772.35471.99531.99533.29132.62832.6283
H41.08792.15631.99531.76412.49772.49513.0552
H51.08792.15631.99531.76412.49773.05522.4951
H62.14361.08683.29132.49772.49771.76421.7642
H72.14521.08572.62832.49513.05521.76421.7625
H82.14521.08572.62833.05522.49511.76421.7625

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.230 C1 C2 H7 110.425
C1 C2 H8 110.425 C2 C1 F3 109.739
C2 C1 H4 111.179 C2 C1 H5 111.179
F3 C1 H4 108.152 F3 C1 H5 108.152
H4 C1 H5 108.335 H6 C2 H7 108.594
H6 C2 H8 108.594 H7 C2 H8 108.516
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability