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

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-43.118464
Energy at 298.15K-43.121900
Nuclear repulsion energy60.445072
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/CEP-121G*
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' 3329 3007 11.89      
2 A' 3220 2909 4.82      
3 A' 2028 1832 454.23      
4 A' 1598 1444 12.51      
5 A' 1536 1388 12.64      
6 A' 1218 1100 178.27      
7 A' 1039 939 87.39      
8 A' 661 597 155.46      
9 A' 495 447 8.92      
10 A' 362 327 1.09      
11 A" 3304 2985 8.37      
12 A" 1601 1446 10.70      
13 A" 1149 1038 2.22      
14 A" 561 506 7.90      
15 A" 151 137 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11126.1 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 10051.3 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/CEP-121G*
ABC
0.34041 0.16463 0.11329

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.273 0.000
C2 1.393 -0.320 0.000
O3 -0.291 1.409 0.000
Cl4 -1.283 -0.982 0.000
H5 2.112 0.489 0.000
H6 1.520 -0.942 0.878
H7 1.520 -0.942 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.51451.17221.79512.12322.13572.1357
C21.51452.41372.75731.08211.08401.0840
O31.17222.41372.58862.57323.09533.0953
Cl41.79512.75732.58863.70032.93832.9383
H52.12321.08212.57323.70031.78051.7805
H62.13571.08403.09532.93831.78051.7567
H72.13571.08403.09532.93831.78051.7567

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 108.561 C1 C2 H6 109.435
C1 C2 H7 109.435 C2 C1 O3 127.432
C2 C1 Cl4 112.563 O3 C1 Cl4 120.005
H5 C2 H6 110.570 H5 C2 H7 110.570
H6 C2 H7 108.254
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.406      
2 C -0.537      
3 O -0.296      
4 Cl -0.189      
5 H 0.207      
6 H 0.205      
7 H 0.205      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.722 -1.477 0.000 3.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.975 -0.138 0.000
y -0.138 -33.541 0.000
z 0.000 0.000 -28.791
Traceless
 xyz
x 2.191 -0.138 0.000
y -0.138 -4.659 0.000
z 0.000 0.000 2.467
Polar
3z2-r24.935
x2-y24.567
xy-0.138
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.634 0.838 0.000
y 0.838 5.911 0.000
z 0.000 0.000 3.520


<r2> (average value of r2) Å2
<r2> 70.821
(<r2>)1/2 8.416