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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-178.549395
Energy at 298.15K-178.554997
HF Energy-178.075869
Nuclear repulsion energy78.864044
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)/6-31G*
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' 3142 3023        
2 A' 3065 2949        
3 A' 3060 2944        
4 A' 1572 1513        
5 A' 1543 1484        
6 A' 1472 1416        
7 A' 1437 1382        
8 A' 1156 1112        
9 A' 1103 1061        
10 A' 916 881        
11 A' 410 394        
12 A" 3155 3036        
13 A" 3108 2990        
14 A" 1528 1470        
15 A" 1318 1268        
16 A" 1220 1174        
17 A" 825 794        
18 A" 271 261        

Unscaled Zero Point Vibrational Energy (zpe) 15150.0 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 14575.9 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)/6-31G*
ABC
1.18894 0.31231 0.27303

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.566 0.000
C2 1.127 -0.448 0.000
F3 -1.227 -0.112 0.000
H4 0.029 1.205 0.893
H5 0.029 1.205 -0.893
H6 2.100 0.062 0.000
H7 1.065 -1.084 0.891
H8 1.065 -1.084 -0.891

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51531.40231.09861.09862.15902.15602.1560
C21.51532.37802.17572.17571.09831.09651.0965
F31.40232.37802.02742.02743.33172.64422.6442
H41.09862.17572.02741.78592.52812.51253.0812
H51.09862.17572.02741.78592.52813.08122.5125
H62.15901.09833.33172.52812.52811.78291.7829
H72.15601.09652.64422.51253.08121.78291.7814
H82.15601.09652.64423.08122.51251.78291.7814

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.377 C1 C2 H7 110.245
C1 C2 H8 110.245 C2 C1 F3 109.128
C2 C1 H4 111.694 C2 C1 H5 111.694
F3 C1 H4 107.710 F3 C1 H5 107.710
H4 C1 H5 108.746 H6 C2 H7 108.642
H6 C2 H8 108.642 H7 C2 H8 108.640
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability