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

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-613.429642
Energy at 298.15K-613.432913
Nuclear repulsion energy149.180889
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 mPW1PW91/6-31G(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' 3198 3053 3.85      
2 A' 3084 2944 0.28      
3 A' 1940 1852 292.65      
4 A' 1461 1395 11.94      
5 A' 1386 1323 26.83      
6 A' 1121 1070 165.81      
7 A' 972 928 48.99      
8 A' 615 588 130.03      
9 A' 449 428 14.72      
10 A' 344 328 1.33      
11 A" 3171 3027 0.01      
12 A" 1465 1399 11.64      
13 A" 1044 997 4.53      
14 A" 527 503 1.91      
15 A" 142 136 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 10458.5 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 9984.7 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 mPW1PW91/6-31G(2df,p)
ABC
0.33951 0.16502 0.11337

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.534 0.000
C2 1.484 0.710 0.000
O3 -0.834 1.367 0.000
Cl4 -0.457 -1.213 0.000
H5 1.720 1.774 0.000
H6 1.909 0.223 0.880
H7 1.909 0.223 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49461.17901.80582.12062.12472.1247
C21.49462.40982.73271.08941.09171.0917
O31.17902.40982.60742.58703.09973.0997
Cl41.80582.73272.60743.69632.90382.9038
H52.12061.08942.58703.69631.79301.7930
H62.12471.09173.09972.90381.79301.7592
H72.12471.09173.09972.90381.79301.7592

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 109.300 C1 C2 H6 109.486
C1 C2 H7 109.486 C2 C1 O3 128.278
C2 C1 Cl4 111.433 O3 C1 Cl4 120.289
H5 C2 H6 110.587 H5 C2 H7 110.587
H6 C2 H7 107.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.348      
2 C -0.527      
3 O -0.228      
4 Cl -0.176      
5 H 0.187      
6 H 0.199      
7 H 0.199      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.740 0.330 0.000 2.759
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.849 2.376 0.000
y 2.376 -31.801 0.000
z 0.000 0.000 -28.921
Traceless
 xyz
x 1.511 2.376 0.000
y 2.376 -2.915 0.000
z 0.000 0.000 1.404
Polar
3z2-r22.808
x2-y22.951
xy2.376
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.428 0.462 0.000
y 0.462 6.911 0.000
z 0.000 0.000 3.787


<r2> (average value of r2) Å2
<r2> 100.726
(<r2>)1/2 10.036