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: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-252.825770
Energy at 298.15K-252.829299
HF Energy-252.825770
Nuclear repulsion energy118.817595
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 PBE1PBE/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' 3223 3063 2.42      
2 A' 3097 2943 0.19      
3 A' 1970 1872 275.69      
4 A' 1494 1419 13.86      
5 A' 1427 1356 59.01      
6 A' 1259 1197 208.85      
7 A' 1026 975 24.13      
8 A' 879 835 33.27      
9 A' 607 577 19.61      
10 A' 412 391 0.07      
11 A" 3171 3014 1.03      
12 A" 1499 1424 10.35      
13 A" 1081 1028 11.85      
14 A" 572 544 4.92      
15 A" 136 129 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 10926.3 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 10383.2 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 PBE1PBE/6-31G*
ABC
0.36777 0.32488 0.17821

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.185 0.000
C2 1.018 -0.907 0.000
O3 0.168 1.361 0.000
F4 -1.248 -0.333 0.000
H5 2.021 -0.480 0.000
H6 0.878 -1.541 0.881
H7 0.878 -1.541 -0.881

Atom - Atom Distances (Å)
  C1 C2 O3 F4 H5 H6 H7
C11.49331.18741.35102.12802.12762.1276
C21.49332.42212.33761.08961.09451.0945
O31.18742.42212.20712.61273.11453.1145
F41.35102.33762.20713.27212.59892.5989
H52.12801.08962.61273.27211.79081.7908
H62.12761.09453.11452.59891.79081.7622
H72.12761.09453.11452.59891.79081.7622

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 109.961 C1 C2 H6 109.643
C1 C2 H7 109.643 C2 C1 O3 128.887
C2 C1 F4 110.445 O3 C1 F4 120.667
H5 C2 H6 110.159 H5 C2 H7 110.159
H6 C2 H7 107.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.612      
2 C -0.632      
3 O -0.389      
4 F -0.260      
5 H 0.221      
6 H 0.223      
7 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.362 -2.467 0.000 2.818
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.291 -1.366 0.000
y -1.366 -24.350 0.000
z 0.000 0.000 -20.883
Traceless
 xyz
x 0.326 -1.366 0.000
y -1.366 -2.763 0.000
z 0.000 0.000 2.437
Polar
3z2-r24.874
x2-y22.059
xy-1.366
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.411 0.048 0.000
y 0.048 4.208 0.000
z 0.000 0.000 2.641


<r2> (average value of r2) Å2
<r2> 67.626
(<r2>)1/2 8.224