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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: MP2=FULL/6-31G*

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/6-31G*
 hartrees
Energy at 0K-178.520334
Energy at 298.15K-178.525969
HF Energy-178.076404
Nuclear repulsion energy79.144422
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/6-31G*
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' 3212 3026 18.11      
2 A' 3121 2941 12.81      
3 A' 3119 2939 34.88      
4 A' 1596 1504 0.13      
5 A' 1566 1475 2.67      
6 A' 1490 1404 33.37      
7 A' 1455 1371 4.60      
8 A' 1171 1104 26.24      
9 A' 1118 1054 57.21      
10 A' 929 875 13.14      
11 A' 415 391 6.33      
12 A" 3226 3040 25.32      
13 A" 3177 2993 31.80      
14 A" 1549 1460 5.03      
15 A" 1339 1261 0.02      
16 A" 1234 1163 4.97      
17 A" 838 789 0.54      
18 A" 280 264 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 15417.5 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 14526.4 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 MP2=FULL/6-31G*
ABC
1.19909 0.31429 0.27482

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.556 0.000
C2 1.118 -0.454 0.000
F3 -1.226 -0.098 0.000
H4 0.064 1.196 0.887
H5 0.064 1.196 -0.887
H6 2.084 0.056 0.000
H7 1.058 -1.089 0.886
H8 1.058 -1.089 -0.886

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50631.38951.09551.09552.14352.14782.1478
C21.50632.37052.14912.14911.09331.09201.0920
F31.38952.37052.03102.03103.31412.64332.6433
H41.09552.14912.03101.77382.48342.49243.0587
H51.09552.14912.03101.77382.48343.05872.4924
H62.14351.09333.31412.48342.48341.77511.7751
H72.14781.09202.64332.49243.05871.77511.7722
H82.14781.09202.64333.05872.49241.77511.7722

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.068 C1 C2 H7 110.489
C1 C2 H8 110.489 C2 C1 F3 109.822
C2 C1 H4 110.385 C2 C1 H5 110.385
F3 C1 H4 109.053 F3 C1 H5 109.053
H4 C1 H5 108.102 H6 C2 H7 108.634
H6 C2 H8 108.634 H7 C2 H8 108.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability