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: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes NULL 1A'
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-251.901238
Energy at 298.15K-251.904954
Nuclear repulsion energy120.586053
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 HF/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' 3302 3006 6.52      
2 A' 3190 2905 1.47      
3 A' 2077 1891 407.46      
4 A' 1584 1442 13.18      
5 A' 1539 1401 40.45      
6 A' 1339 1219 248.73      
7 A' 1107 1008 39.73      
8 A' 929 846 34.16      
9 A' 660 601 28.78      
10 A' 446 406 0.02      
11 A" 3252 2960 5.80      
12 A" 1596 1453 6.81      
13 A" 1178 1072 11.68      
14 A" 635 578 12.37      
15 A" 144 131 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11488.3 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 10458.9 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 HF/aug-cc-pVTZ
ABC
0.38525 0.32789 0.18306

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.184 0.000
C2 0.980 -0.944 0.000
O3 0.210 1.327 0.000
F4 -1.242 -0.264 0.000
H5 1.984 -0.554 0.000
H6 0.815 -1.560 0.875
H7 0.815 -1.560 -0.875

Atom - Atom Distances (Å)
  C1 C2 O3 F4 H5 H6 H7
C11.49421.16271.32002.11632.11382.1138
C21.49422.39832.32321.07711.08221.0822
O31.16272.39832.15452.58513.07653.0765
F41.32002.32322.15453.23832.58282.5828
H52.11631.07712.58513.23831.77311.7731
H62.11381.08223.07652.58281.77311.7493
H72.11381.08223.07652.58281.77311.7493

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 109.719 C1 C2 H6 109.218
C1 C2 H7 109.218 C2 C1 O3 128.597
C2 C1 F4 111.136 O3 C1 F4 120.267
H5 C2 H6 110.402 H5 C2 H7 110.402
H6 C2 H7 107.843
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.575      
2 C -0.665      
3 O -0.526      
4 F -0.328      
5 H 0.349      
6 H 0.298      
7 H 0.298      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.492 -2.820 0.000 3.191
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.131 -1.745 0.000
y -1.745 -25.175 0.000
z 0.000 0.000 -21.199
Traceless
 xyz
x 0.056 -1.745 0.000
y -1.745 -3.010 0.000
z 0.000 0.000 2.954
Polar
3z2-r25.907
x2-y22.044
xy-1.745
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.984 -0.024 0.000
y -0.024 4.659 0.000
z 0.000 0.000 3.289


<r2> (average value of r2) Å2
<r2> 66.700
(<r2>)1/2 8.167