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: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-53.211177
Energy at 298.15K-53.214571
Nuclear repulsion energy63.748077
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 B3LYP/CEP-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' 3196 3095 13.73      
2 A' 3073 2976 1.12      
3 A' 1791 1734 242.18      
4 A' 1483 1436 23.71      
5 A' 1425 1380 37.91      
6 A' 1180 1143 171.30      
7 A' 997 965 45.90      
8 A' 770 746 81.46      
9 A' 547 530 20.33      
10 A' 387 374 0.76      
11 A" 3154 3055 9.82      
12 A" 1482 1435 17.74      
13 A" 1079 1045 13.19      
14 A" 530 513 5.74      
15 A" 135 131 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 10614.0 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 10278.6 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 B3LYP/CEP-31G
ABC
0.34026 0.30559 0.16607

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.222 0.000
C2 1.147 -0.778 0.000
O3 -0.003 1.444 0.000
F4 -1.259 -0.479 0.000
H5 2.105 -0.240 0.000
H6 1.069 -1.423 0.890
H7 1.069 -1.423 -0.890

Atom - Atom Distances (Å)
  C1 C2 O3 F4 H5 H6 H7
C11.52101.22271.44082.15462.15402.1540
C21.52102.50182.42381.09861.10221.1022
O31.22272.50182.29732.69783.18793.1879
F41.44082.42382.29733.37182.66482.6648
H52.15461.09862.69783.37181.80681.8068
H62.15401.10223.18792.66481.80681.7805
H72.15401.10223.18792.66481.80681.7805

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 109.614 C1 C2 H6 109.358
C1 C2 H7 109.358 C2 C1 O3 131.215
C2 C1 F4 109.813 O3 C1 F4 118.973
H5 C2 H6 110.367 H5 C2 H7 110.367
H6 C2 H7 107.744
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.002      
2 C -0.332      
3 O -0.028      
4 F -0.196      
5 H 0.183      
6 H 0.185      
7 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.741 -2.437 0.000 3.667
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.346 -1.731 0.000
y -1.731 -26.045 0.000
z 0.000 0.000 -21.288
Traceless
 xyz
x 0.321 -1.731 0.000
y -1.731 -3.728 0.000
z 0.000 0.000 3.408
Polar
3z2-r26.815
x2-y22.699
xy-1.731
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.543 -0.001 0.000
y -0.001 4.429 0.000
z 0.000 0.000 2.503


<r2> (average value of r2) Å2
<r2> 60.212
(<r2>)1/2 7.760