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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: CCSD(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 CCSD(T)/6-311G**
 hartrees
Energy at 0K-178.685100
Energy at 298.15K-178.690715
HF Energy-178.128981
Nuclear repulsion energy79.000392
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 CCSD(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' 3127 3016        
2 A' 3057 2949        
3 A' 3047 2939        
4 A' 1539 1484        
5 A' 1510 1457        
6 A' 1457 1406        
7 A' 1413 1364        
8 A' 1142 1102        
9 A' 1096 1057        
10 A' 903 871        
11 A' 413 398        
12 A" 3140 3029        
13 A" 3103 2993        
14 A" 1493 1440        
15 A" 1319 1273        
16 A" 1209 1166        
17 A" 817 788        
18 A" 273 263        

Unscaled Zero Point Vibrational Energy (zpe) 15027.5 cm-1
Scaled (by 0.9647) Zero Point Vibrational Energy (zpe) 14497.1 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 CCSD(T)/6-311G**
ABC
1.20019 0.31203 0.27342

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(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 0.893
H5 0.038 1.197 -0.893
H6 2.096 0.052 0.000
H7 1.061 -1.094 0.891
H8 1.061 -1.094 -0.891

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51891.39261.09701.09702.15682.15922.1592
C21.51892.37952.17322.17321.09761.09571.0957
F31.39262.37952.01812.01813.32622.65052.6505
H41.09702.17322.01811.78702.51862.50973.0792
H51.09702.17322.01811.78702.51863.07922.5097
H62.15681.09763.32622.51862.51861.78281.7828
H72.15921.09572.65052.50973.07921.78281.7812
H82.15921.09572.65053.07922.50971.78281.7812

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.990 C1 C2 H7 110.294
C1 C2 H8 110.294 C2 C1 F3 109.548
C2 C1 H4 111.326 C2 C1 H5 111.326
F3 C1 H4 107.722 F3 C1 H5 107.722
H4 C1 H5 109.064 H6 C2 H7 108.741
H6 C2 H8 108.741 H7 C2 H8 108.738
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability