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: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-613.515144
Energy at 298.15K-613.518357
Nuclear repulsion energy147.701461
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/6-311G*
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' 3153 3047 7.56      
2 A' 3059 2956 0.96      
3 A' 1916 1852 339.03      
4 A' 1481 1431 14.73      
5 A' 1405 1358 26.75      
6 A' 1117 1080 142.40      
7 A' 956 924 79.76      
8 A' 590 571 141.13      
9 A' 419 405 34.55      
10 A' 339 327 1.77      
11 A" 3127 3022 1.33      
12 A" 1482 1432 13.76      
13 A" 1057 1021 4.57      
14 A" 517 499 1.74      
15 A" 142 137 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 10380.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 10030.7 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/6-311G*
ABC
0.33701 0.15984 0.11064

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.553 0.000
C2 1.489 0.735 0.000
O3 -0.844 1.374 0.000
Cl4 -0.456 -1.237 0.000
H5 1.720 1.800 0.000
H6 1.922 0.255 0.880
H7 1.922 0.255 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.50031.17761.84712.12492.13452.1345
C21.50032.41882.77021.08961.09161.0916
O31.17762.41882.64012.59903.11043.1104
Cl41.84712.77022.64013.73652.94182.9418
H52.12491.08962.59903.73651.78941.7894
H62.13451.09163.11042.94181.78941.7593
H72.13451.09163.11042.94181.78941.7593

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 109.228 C1 C2 H6 109.867
C1 C2 H7 109.867 C2 C1 O3 128.775
C2 C1 Cl4 111.279 O3 C1 Cl4 119.946
H5 C2 H6 110.241 H5 C2 H7 110.241
H6 C2 H7 107.380
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.229     0.556
2 C -0.650     -0.304
3 O -0.212     -0.365
4 Cl -0.140     -0.238
5 H 0.249     0.120
6 H 0.261     0.115
7 H 0.261     0.115


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.948 0.657 0.000 3.021
CHELPG        
AIM        
ESP 2.943 0.731 0.000 3.033


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.868 2.232 0.000
y 2.232 -32.904 0.000
z 0.000 0.000 -29.861
Traceless
 xyz
x 1.514 2.232 0.000
y 2.232 -3.039 0.000
z 0.000 0.000 1.525
Polar
3z2-r23.050
x2-y23.035
xy2.232
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.184 0.593 0.000
y 0.593 7.315 0.000
z 0.000 0.000 3.260


<r2> (average value of r2) Å2
<r2> 103.292
(<r2>)1/2 10.163