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

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-613.414921
Energy at 298.15K-613.418189
Nuclear repulsion energy148.839076
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**
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' 3211 3056 3.09      
2 A' 3094 2944 0.21      
3 A' 1943 1849 305.51      
4 A' 1475 1403 13.40      
5 A' 1402 1334 32.10      
6 A' 1130 1075 175.47      
7 A' 979 932 48.75      
8 A' 619 589 132.55      
9 A' 449 427 16.36      
10 A' 348 331 1.32      
11 A" 3181 3027 0.06      
12 A" 1480 1408 13.44      
13 A" 1049 998 5.19      
14 A" 523 497 2.07      
15 A" 139 132 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 10511.3 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 10001.5 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 mPW1PW91/6-31G**
ABC
0.33917 0.16389 0.11281

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.531 0.000
C2 1.483 0.721 0.000
O3 -0.840 1.367 0.000
Cl4 -0.454 -1.219 0.000
H5 1.706 1.787 0.000
H6 1.915 0.241 0.880
H7 1.915 0.241 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49541.18491.80832.11862.12742.1274
C21.49542.41142.74161.08921.09171.0917
O31.18492.41142.61492.58063.10363.1036
Cl41.80832.74162.61493.70182.91832.9183
H52.11861.08922.58063.70181.79161.7916
H62.12741.09173.10362.91831.79161.7608
H72.12741.09173.10362.91831.79161.7608

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 109.100 C1 C2 H6 109.648
C1 C2 H7 109.648 C2 C1 O3 127.850
C2 C1 Cl4 111.823 O3 C1 Cl4 120.327
H5 C2 H6 110.467 H5 C2 H7 110.467
H6 C2 H7 107.492
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.292      
2 C -0.455      
3 O -0.338      
4 Cl -0.064      
5 H 0.184      
6 H 0.190      
7 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.870 0.345 0.000 2.890
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.003 2.383 0.000
y 2.383 -32.047 0.000
z 0.000 0.000 -29.101
Traceless
 xyz
x 1.571 2.383 0.000
y 2.383 -2.995 0.000
z 0.000 0.000 1.424
Polar
3z2-r22.848
x2-y23.044
xy2.383
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> 101.250
(<r2>)1/2 10.062