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All results from a given calculation for CH3COCl (Acetyl Chloride)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-613.334293
Energy at 298.15K-613.337528
Nuclear repulsion energy148.371078
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 B3PW91/6-31G*
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' 3192 3054 4.00      
2 A' 3082 2949 0.25      
3 A' 1928 1844 299.28      
4 A' 1485 1421 14.15      
5 A' 1409 1348 29.48      
6 A' 1129 1080 163.69      
7 A' 975 933 57.73      
8 A' 613 586 131.20      
9 A' 442 422 18.45      
10 A' 345 330 1.48      
11 A" 3162 3025 0.19      
12 A" 1488 1424 13.53      
13 A" 1053 1008 5.25      
14 A" 520 497 1.95      
15 A" 136 130 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 10478.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10025.1 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 B3PW91/6-31G*
ABC
0.33742 0.16264 0.11203

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.535 0.000
C2 1.487 0.723 0.000
O3 -0.841 1.373 0.000
Cl4 -0.456 -1.224 0.000
H5 1.713 1.791 0.000
H6 1.921 0.242 0.882
H7 1.921 0.242 -0.882

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49891.18701.81652.12452.13412.1341
C21.49892.41712.75011.09191.09441.0944
O31.18702.41712.62462.58833.11213.1121
Cl41.81652.75012.62463.71382.92842.9284
H52.12451.09192.58833.71381.79471.7947
H62.13411.09443.11212.92841.79471.7644
H72.13411.09443.11212.92841.79471.7644

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 109.157 C1 C2 H6 109.774
C1 C2 H7 109.774 C2 C1 O3 127.908
C2 C1 Cl4 111.732 O3 C1 Cl4 120.360
H5 C2 H6 110.341 H5 C2 H7 110.341
H6 C2 H7 107.437
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.305     0.525
2 C -0.581     -0.338
3 O -0.332     -0.358
4 Cl -0.069     -0.208
5 H 0.222     0.133
6 H 0.228     0.123
7 H 0.228     0.123


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.630 -2.375 0.001 2.881
CHELPG        
AIM        
ESP 1.703 -2.347 0.000 2.900


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.022 2.349 0.000
y 2.349 -32.052 0.000
z 0.000 0.000 -29.103
Traceless
 xyz
x 1.556 2.349 0.000
y 2.349 -2.990 0.000
z 0.000 0.000 1.434
Polar
3z2-r22.868
x2-y23.031
xy2.349
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 101.803
(<r2>)1/2 10.090