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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: QCISD(T)/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(T)/6-311G**
 hartrees
Energy at 0K-178.685603
Energy at 298.15K-178.691217
HF Energy-178.128954
Nuclear repulsion energy78.984375
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(T)/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' 3126 3126        
2 A' 3056 3056        
3 A' 3046 3046        
4 A' 1538 1538        
5 A' 1510 1510        
6 A' 1456 1456        
7 A' 1413 1413        
8 A' 1141 1141        
9 A' 1094 1094        
10 A' 902 902        
11 A' 413 413        
12 A" 3139 3139        
13 A" 3102 3102        
14 A" 1492 1492        
15 A" 1318 1318        
16 A" 1208 1208        
17 A" 817 817        
18 A" 273 273        

Unscaled Zero Point Vibrational Energy (zpe) 15020.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15020.8 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(T)/6-311G**
ABC
1.19966 0.31192 0.27331

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.562 0.000
C2 1.125 -0.459 0.000
F3 -1.227 -0.097 0.000
H4 0.038 1.197 0.894
H5 0.038 1.197 -0.894
H6 2.096 0.053 0.000
H7 1.062 -1.094 0.891
H8 1.062 -1.094 -0.891

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51911.39321.09721.09722.15702.15942.1594
C21.51912.38002.17342.17341.09771.09581.0958
F31.39322.38002.01872.01873.32682.65092.6509
H41.09722.17342.01871.78732.51892.50993.0795
H51.09722.17342.01871.78732.51893.07952.5099
H62.15701.09773.32682.51892.51891.78291.7829
H72.15941.09582.65092.50993.07951.78291.7813
H82.15941.09582.65093.07952.50991.78291.7813

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.988 C1 C2 H7 110.294
C1 C2 H8 110.294 C2 C1 F3 109.541
C2 C1 H4 111.328 C2 C1 H5 111.328
F3 C1 H4 107.718 F3 C1 H5 107.718
H4 C1 H5 109.074 H6 C2 H7 108.742
H6 C2 H8 108.742 H7 C2 H8 108.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability