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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-613.428440
Energy at 298.15K-613.431672
Nuclear repulsion energy148.826081
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 B1B95/6-31G**
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' 3204 3059 3.39      
2 A' 3087 2948 0.20      
3 A' 1937 1849 300.50      
4 A' 1466 1400 12.91      
5 A' 1389 1326 30.23      
6 A' 1120 1069 175.19      
7 A' 972 928 45.90      
8 A' 611 584 133.55      
9 A' 443 423 18.09      
10 A' 341 325 1.15      
11 A" 3173 3030 0.09      
12 A" 1470 1403 12.87      
13 A" 1039 992 4.77      
14 A" 516 493 2.00      
15 A" 135 129 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 10450.9 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 9978.5 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 B1B95/6-31G**
ABC
0.33899 0.16391 0.11279

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.533 0.000
C2 1.483 0.720 0.000
O3 -0.840 1.369 0.000
Cl4 -0.453 -1.219 0.000
H5 1.708 1.785 0.000
H6 1.912 0.238 0.880
H7 1.912 0.238 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49451.18531.80952.11832.12562.1256
C21.49452.41192.74011.08881.09131.0913
O31.18532.41192.61652.58253.10313.1031
Cl41.80952.74012.61653.70122.91462.9146
H52.11831.08882.58253.70121.79131.7913
H62.12561.09133.10312.91461.79131.7600
H72.12561.09133.10312.91461.79131.7600

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 109.163 C1 C2 H6 109.589
C1 C2 H7 109.589 C2 C1 O3 127.951
C2 C1 Cl4 111.708 O3 C1 Cl4 120.341
H5 C2 H6 110.498 H5 C2 H7 110.498
H6 C2 H7 107.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.283      
2 C -0.418      
3 O -0.330      
4 Cl -0.067      
5 H 0.173      
6 H 0.180      
7 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.842 0.366 0.000 2.866
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.955 2.348 0.000
y 2.348 -31.981 0.000
z 0.000 0.000 -29.056
Traceless
 xyz
x 1.564 2.348 0.000
y 2.348 -2.975 0.000
z 0.000 0.000 1.411
Polar
3z2-r22.823
x2-y23.026
xy2.348
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.950 0.417 0.000
y 0.417 6.728 0.000
z 0.000 0.000 3.223


<r2> (average value of r2) Å2
<r2> 101.214
(<r2>)1/2 10.061