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All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-178.577229
Energy at 298.15K-178.582868
HF Energy-178.084943
Nuclear repulsion energy79.235319
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 CCD/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' 3215 3015 25.39      
2 A' 3130 2934 12.44      
3 A' 3126 2931 40.41      
4 A' 1593 1494 0.36      
5 A' 1563 1465 1.69      
6 A' 1497 1403 32.10      
7 A' 1457 1366 3.99      
8 A' 1176 1103 38.83      
9 A' 1128 1057 45.16      
10 A' 931 873 12.46      
11 A' 416 390 6.23      
12 A" 3228 3026 34.99      
13 A" 3178 2980 33.88      
14 A" 1547 1450 3.11      
15 A" 1341 1257 0.04      
16 A" 1237 1160 5.06      
17 A" 833 781 0.08      
18 A" 274 257 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 15434.2 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 14471.1 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 CCD/6-31G**
ABC
1.20606 0.31405 0.27483

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.561 0.000
C2 1.123 -0.452 0.000
F3 -1.224 -0.104 0.000
H4 0.036 1.197 0.886
H5 0.036 1.197 -0.886
H6 2.089 0.054 0.000
H7 1.060 -1.084 0.884
H8 1.060 -1.084 -0.884

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.51231.39351.09121.09122.14942.14742.1474
C21.51232.37272.16472.16471.09021.08861.0886
F31.39352.37272.01662.01663.31672.63802.6380
H41.09122.16472.01661.77222.51122.50033.0635
H51.09122.16472.01661.77222.51123.06352.5003
H62.14941.09023.31672.51122.51121.77041.7704
H72.14741.08862.63802.50033.06351.77041.7682
H82.14741.08862.63803.06352.50031.77041.7682

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.304 C1 C2 H7 110.243
C1 C2 H8 110.243 C2 C1 F3 109.414
C2 C1 H4 111.469 C2 C1 H5 111.469
F3 C1 H4 107.884 F3 C1 H5 107.884
H4 C1 H5 108.591 H6 C2 H7 108.692
H6 C2 H8 108.692 H7 C2 H8 108.619
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability