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 CH3COF (Acetyl fluoride)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes NULL 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-252.997900
Energy at 298.15K-253.001411
Nuclear repulsion energy118.536601
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3206 3067 3.30      
2 A' 3084 2950 0.34      
3 A' 1950 1866 268.83      
4 A' 1492 1427 13.90      
5 A' 1423 1361 50.05      
6 A' 1244 1190 207.69      
7 A' 1021 977 28.68      
8 A' 865 827 35.60      
9 A' 601 575 18.70      
10 A' 410 392 0.09      
11 A" 3155 3018 1.62      
12 A" 1497 1432 10.03      
13 A" 1078 1032 11.35      
14 A" 569 545 4.81      
15 A" 134 128 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 10863.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10393.2 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 B3PW91/6-31G*
ABC
0.36588 0.32334 0.17730

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.186 0.000
C2 1.028 -0.901 0.000
O3 0.158 1.365 0.000
F4 -1.249 -0.343 0.000
H5 2.028 -0.468 0.000
H6 0.892 -1.536 0.881
H7 0.892 -1.536 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 F4 H5 H6 H7
C11.49611.18911.35692.13102.13072.1307
C21.49612.42692.34471.09001.09481.0948
O31.18912.42692.21312.61833.11953.1195
F41.35692.34472.21313.28002.60552.6055
H52.13101.09002.61833.28001.79091.7909
H62.13071.09483.11952.60551.79091.7629
H72.13071.09483.11952.60551.79091.7629

picture of Acetyl fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 109.980 C1 C2 H6 109.672
C1 C2 H7 109.672 C2 C1 O3 128.965
C2 C1 F4 110.441 O3 C1 F4 120.594
H5 C2 H6 110.114 H5 C2 H7 110.114
H6 C2 H7 107.245
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.611     0.723
2 C -0.618     -0.510
3 O -0.389     -0.453
4 F -0.260     -0.235
5 H 0.217     0.152
6 H 0.219     0.162
7 H 0.219     0.162


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.403 -2.446 0.000 2.820
CHELPG        
AIM        
ESP 1.418 -2.456 0.000 2.836


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.242 -1.369 0.000
y -1.369 -24.319 0.000
z 0.000 0.000 -20.844
Traceless
 xyz
x 0.339 -1.369 0.000
y -1.369 -2.775 0.000
z 0.000 0.000 2.436
Polar
3z2-r24.872
x2-y22.076
xy-1.369
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 67.859
(<r2>)1/2 8.238