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 CH3COCl (Acetyl Chloride)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-611.926984
Energy at 298.15K-611.930445
HF Energy-611.926984
Nuclear repulsion energy150.491904
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/Def2TZVPP
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' 3291 2983 8.55      
2 A' 3193 2894 1.69      
3 A' 2046 1855 419.51      
4 A' 1581 1433 11.81      
5 A' 1525 1382 15.63      
6 A' 1214 1100 168.07      
7 A' 1035 938 81.58      
8 A' 657 595 147.16      
9 A' 493 447 12.79      
10 A' 368 333 1.43      
11 A" 3264 2958 3.28      
12 A" 1590 1441 10.96      
13 A" 1147 1039 3.46      
14 A" 574 520 5.67      
15 A" 157 142 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11066.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 10030.9 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/Def2TZVPP
ABC
0.34697 0.16697 0.11510

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.527 0.000
C2 1.480 0.725 0.000
O3 -0.831 1.334 0.000
Cl4 -0.455 -1.204 0.000
H5 1.692 1.783 0.000
H6 1.902 0.251 0.875
H7 1.902 0.251 -0.875

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49311.15791.78972.10682.11122.1112
C21.49312.38922.73211.07851.08051.0805
O31.15792.38922.56552.56193.06613.0661
Cl41.78972.73212.56553.67802.90432.9043
H52.10681.07852.56193.67801.77601.7760
H62.11121.08053.06612.90431.77601.7494
H72.11121.08053.06612.90431.77601.7494

picture of Acetyl Chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 108.959 C1 C2 H6 109.181
C1 C2 H7 109.181 C2 C1 O3 128.197
C2 C1 Cl4 112.349 O3 C1 Cl4 119.454
H5 C2 H6 110.697 H5 C2 H7 110.697
H6 C2 H7 108.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.352      
2 C -0.157      
3 O -0.324      
4 Cl -0.152      
5 H 0.104      
6 H 0.089      
7 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.977 -0.019 0.000 2.977
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.724 2.919 0.000
y 2.919 -32.872 0.000
z 0.000 0.000 -29.439
Traceless
 xyz
x 1.431 2.919 0.000
y 2.919 -3.290 0.000
z 0.000 0.000 1.859
Polar
3z2-r23.718
x2-y23.148
xy2.919
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.494 0.321 0.000
y 0.321 6.798 0.000
z 0.000 0.000 4.041


<r2> (average value of r2) Å2
<r2> 100.100
(<r2>)1/2 10.005