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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-613.435627
Energy at 298.15K-613.438859
Nuclear repulsion energy148.972334
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 B1B95/6-31+G**
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' 3200 3061 3.49      
2 A' 3083 2949 0.27      
3 A' 1910 1827 348.47      
4 A' 1461 1397 14.52      
5 A' 1386 1326 31.93      
6 A' 1120 1071 181.76      
7 A' 970 928 46.78      
8 A' 615 588 136.35      
9 A' 447 428 17.46      
10 A' 343 328 1.37      
11 A" 3168 3031 0.05      
12 A" 1464 1400 14.68      
13 A" 1037 992 3.55      
14 A" 519 496 1.57      
15 A" 127 121 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 10424.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9972.1 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 B1B95/6-31+G**
ABC
0.33952 0.16437 0.11307

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.527 0.000
C2 1.481 0.728 0.000
O3 -0.845 1.361 0.000
Cl4 -0.450 -1.218 0.000
H5 1.699 1.795 0.000
H6 1.915 0.249 0.880
H7 1.915 0.249 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49461.18761.80182.11972.12552.1255
C21.49462.41102.74141.08901.09171.0917
O31.18762.41102.60902.58053.10303.1030
Cl41.80182.74142.60903.70042.91892.9189
H52.11971.08902.58053.70041.79171.7917
H62.12551.09173.10302.91891.79171.7604
H72.12551.09173.10302.91891.79171.7604

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 109.250 C1 C2 H6 109.553
C1 C2 H7 109.553 C2 C1 O3 127.645
C2 C1 Cl4 112.197 O3 C1 Cl4 120.158
H5 C2 H6 110.499 H5 C2 H7 110.499
H6 C2 H7 107.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.256      
2 C -0.590      
3 O -0.280      
4 Cl -0.000      
5 H 0.200      
6 H 0.207      
7 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.971 0.170 0.000 2.976
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.552 2.733 0.000
y 2.733 -32.746 0.000
z 0.000 0.000 -29.512
Traceless
 xyz
x 1.578 2.733 0.000
y 2.733 -3.215 0.000
z 0.000 0.000 1.637
Polar
3z2-r23.274
x2-y23.195
xy2.733
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.762 0.294 0.000
y 0.294 7.504 0.000
z 0.000 0.000 4.011


<r2> (average value of r2) Å2
<r2> 101.426
(<r2>)1/2 10.071