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

using model chemistry: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-611.854065
Energy at 298.15K-611.857526
Nuclear repulsion energy150.227830
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/6-31G(2df,p)
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 2990 7.12      
2 A' 3198 2896 1.77      
3 A' 2073 1877 391.88      
4 A' 1580 1430 10.54      
5 A' 1522 1379 15.91      
6 A' 1210 1096 171.48      
7 A' 1037 939 79.60      
8 A' 653 592 153.11      
9 A' 491 445 12.39      
10 A' 366 331 1.08      
11 A" 3277 2968 2.41      
12 A" 1588 1438 9.61      
13 A" 1146 1037 4.25      
14 A" 573 519 6.29      
15 A" 162 147 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11089.1 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 10041.1 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 HF/6-31G(2df,p)
ABC
0.34554 0.16643 0.11470

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.525 0.000
C2 1.490 0.714 0.000
O3 -0.819 1.347 0.000
Cl4 -0.466 -1.203 0.000
H5 1.706 1.773 0.000
H6 1.913 0.239 0.877
H7 1.913 0.239 -0.877

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.50151.16001.78982.11382.12382.1238
C21.50152.39362.73831.08141.08341.0834
O31.16002.39362.57402.56043.07563.0756
Cl41.78982.73832.57403.68452.91662.9166
H52.11381.08142.56043.68451.77961.7796
H62.12381.08343.07562.91661.77961.7533
H72.12381.08343.07562.91661.77961.7533

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 108.751 C1 C2 H6 109.430
C1 C2 H7 109.430 C2 C1 O3 127.679
C2 C1 Cl4 112.311 O3 C1 Cl4 120.011
H5 C2 H6 110.588 H5 C2 H7 110.588
H6 C2 H7 108.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.430      
2 C -0.486      
3 O -0.322      
4 Cl -0.186      
5 H 0.186      
6 H 0.189      
7 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.916 0.161 0.000 2.920
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.543 2.667 0.000
y 2.667 -32.600 0.000
z 0.000 0.000 -29.277
Traceless
 xyz
x 1.395 2.667 0.000
y 2.667 -3.191 0.000
z 0.000 0.000 1.795
Polar
3z2-r23.590
x2-y23.057
xy2.667
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.099 0.379 0.000
y 0.379 6.443 0.000
z 0.000 0.000 3.709


<r2> (average value of r2) Å2
<r2> 100.250
(<r2>)1/2 10.013