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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-613.475040
Energy at 298.15K-613.478308
Nuclear repulsion energy148.933846
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 mPW1PW91/6-311G*
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' 3190 3045 6.08      
2 A' 3085 2944 0.66      
3 A' 1940 1852 343.73      
4 A' 1482 1414 15.56      
5 A' 1406 1342 32.90      
6 A' 1129 1078 167.72      
7 A' 976 931 61.81      
8 A' 611 583 143.56      
9 A' 443 423 23.90      
10 A' 344 329 1.27      
11 A" 3163 3019 0.83      
12 A" 1485 1417 14.79      
13 A" 1057 1009 5.26      
14 A" 525 501 1.56      
15 A" 143 137 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 10490.2 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 10011.8 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 mPW1PW91/6-311G*
ABC
0.33995 0.16379 0.11284

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.539 0.000
C2 1.482 0.720 0.000
O3 -0.838 1.365 0.000
Cl4 -0.455 -1.220 0.000
H5 1.714 1.784 0.000
H6 1.913 0.239 0.879
H7 1.913 0.239 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49331.17641.81652.11852.12632.1263
C21.49332.40812.74141.08831.09051.0905
O31.17642.40812.61252.58663.09943.0994
Cl41.81652.74142.61253.70462.91642.9164
H52.11851.08832.58663.70461.78801.7880
H62.12631.09053.09942.91641.78801.7574
H72.12631.09053.09942.91641.78801.7574

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 109.289 C1 C2 H6 109.779
C1 C2 H7 109.779 C2 C1 O3 128.457
C2 C1 Cl4 111.471 O3 C1 Cl4 120.072
H5 C2 H6 110.301 H5 C2 H7 110.301
H6 C2 H7 107.370
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.236      
2 C -0.699      
3 O -0.230      
4 Cl -0.124      
5 H 0.265      
6 H 0.276      
7 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.934 0.464 0.000 2.970
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.615 2.295 0.000
y 2.295 -32.551 0.000
z 0.000 0.000 -29.584
Traceless
 xyz
x 1.453 2.295 0.000
y 2.295 -2.952 0.000
z 0.000 0.000 1.499
Polar
3z2-r22.998
x2-y22.936
xy2.295
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> 101.556
(<r2>)1/2 10.077