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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: QCISD/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 QCISD/6-311G**
 hartrees
Energy at 0K-178.671678
Energy at 298.15K-178.677307
HF Energy-178.129213
Nuclear repulsion energy79.136816
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 QCISD/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' 3141 2997 29.45      
2 A' 3075 2933 35.53      
3 A' 3062 2921 17.64      
4 A' 1551 1480 0.57      
5 A' 1521 1452 1.59      
6 A' 1470 1403 31.68      
7 A' 1426 1360 1.47      
8 A' 1154 1101 36.77      
9 A' 1107 1057 56.29      
10 A' 912 870 14.97      
11 A' 417 398 6.35      
12 A" 3154 3009 47.05      
13 A" 3119 2976 20.53      
14 A" 1503 1434 4.16      
15 A" 1329 1268 0.49      
16 A" 1218 1162 5.52      
17 A" 824 786 0.04      
18 A" 272 260 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 15126.5 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 14432.2 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 QCISD/6-311G**
ABC
1.20469 0.31306 0.27434

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.560 0.000
C2 1.122 -0.460 0.000
F3 -1.225 -0.094 0.000
H4 0.039 1.196 0.892
H5 0.039 1.196 -0.892
H6 2.094 0.048 0.000
H7 1.058 -1.095 0.889
H8 1.058 -1.095 -0.889

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51731.38871.09561.09562.15582.15662.1566
C21.51732.37552.17072.17071.09631.09451.0945
F31.38872.37552.01402.01403.32162.64612.6461
H41.09562.17072.01401.78382.51722.50733.0754
H51.09562.17072.01401.78382.51723.07542.5073
H62.15581.09633.32162.51722.51721.78061.7806
H72.15661.09452.64612.50733.07541.78061.7781
H82.15661.09452.64613.07542.50731.78061.7781

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.108 C1 C2 H7 110.277
C1 C2 H8 110.277 C2 C1 F3 109.585
C2 C1 H4 111.329 C2 C1 H5 111.329
F3 C1 H4 107.741 F3 C1 H5 107.741
H4 C1 H5 108.984 H6 C2 H7 108.744
H6 C2 H8 108.744 H7 C2 H8 108.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability