return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H5F (fluoroethane)

using model chemistry: wB97X-D/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-179.081025
Energy at 298.15K-179.086587
HF Energy-179.081025
Nuclear repulsion energy79.323851
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 wB97X-D/aug-cc-pVTZ
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' 3139 3002 22.31      
2 A' 3061 2928 7.19      
3 A' 3056 2924 42.20      
4 A' 1517 1451 2.16      
5 A' 1496 1431 1.48      
6 A' 1438 1376 24.56      
7 A' 1405 1344 1.50      
8 A' 1136 1087 32.78      
9 A' 1078 1031 85.10      
10 A' 901 862 16.95      
11 A' 420 402 6.15      
12 A" 3146 3010 31.24      
13 A" 3100 2966 18.38      
14 A" 1485 1420 6.24      
15 A" 1313 1256 0.44      
16 A" 1187 1135 4.42      
17 A" 803 768 1.01      
18 A" 235 225 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 14958.0 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 14308.8 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 wB97X-D/aug-cc-pVTZ
ABC
1.22214 0.31295 0.27489

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.550 0.000
C2 1.117 -0.461 0.000
F3 -1.225 -0.086 0.000
H4 0.055 1.188 0.886
H5 0.055 1.188 -0.886
H6 2.077 0.055 0.000
H7 1.067 -1.096 0.884
H8 1.067 -1.096 -0.884

Atom - Atom Distances (Å)
  C1 C2 F3 H4 H5 H6 H7 H8
C11.50621.37971.09331.09332.13512.15132.1513
C21.50622.37152.15192.15191.09021.08991.0899
F31.37972.37152.01092.01093.30482.65602.6560
H41.09332.15192.01091.77232.48132.49773.0616
H51.09332.15192.01091.77232.48133.06162.4977
H62.13511.09023.30482.48132.48131.76861.7686
H72.15131.08992.65602.49773.06161.76861.7688
H82.15131.08992.65603.06162.49771.76861.7688

picture of fluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.597 C1 C2 H7 110.910
C1 C2 H8 110.910 C2 C1 F3 110.445
C2 C1 H4 110.751 C2 C1 H5 110.751
F3 C1 H4 108.253 F3 C1 H5 108.253
H4 C1 H5 108.299 H6 C2 H7 108.439
H6 C2 H8 108.439 H7 C2 H8 108.475
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.002      
2 C -0.828      
3 F -0.449      
4 H 0.241      
5 H 0.241      
6 H 0.285      
7 H 0.257      
8 H 0.257      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.803 0.717 0.000 1.940
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.794 -0.329 0.000
y -0.329 -18.145 0.000
z 0.000 0.000 -18.131
Traceless
 xyz
x -2.656 -0.329 0.000
y -0.329 1.317 0.000
z 0.000 0.000 1.339
Polar
3z2-r22.678
x2-y2-2.648
xy-0.329
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.511 -0.129 0.000
y -0.129 4.336 0.000
z 0.000 0.000 4.049


<r2> (average value of r2) Å2
<r2> 51.115
(<r2>)1/2 7.149