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

using model chemistry: HF/CEP-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 HF/CEP-31G*
 hartrees
Energy at 0K-43.110575
Energy at 298.15K-43.114007
Nuclear repulsion energy60.277705
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-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' 3364 3021 17.85      
2 A' 3258 2926 8.58      
3 A' 2061 1851 476.15      
4 A' 1594 1431 11.73      
5 A' 1536 1379 10.31      
6 A' 1224 1099 189.48      
7 A' 1050 943 74.23      
8 A' 666 598 156.00      
9 A' 496 445 7.54      
10 A' 360 324 0.99      
11 A" 3340 2999 14.83      
12 A" 1600 1437 10.68      
13 A" 1147 1030 3.27      
14 A" 561 504 7.66      
15 A" 154 138 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11205.0 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 10062.1 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 HF/CEP-31G*
ABC
0.33752 0.16457 0.11296

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.271 0.000
C2 1.395 -0.336 0.000
O3 -0.280 1.416 0.000
Cl4 -1.292 -0.969 0.000
H5 2.122 0.471 0.000
H6 1.514 -0.962 0.883
H7 1.514 -0.962 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.52141.17911.79142.13162.14282.1428
C21.52142.42462.76071.08661.08841.0884
O31.17912.42462.59152.58213.10723.1072
Cl41.79142.76072.59153.70582.94192.9419
H52.13161.08662.58213.70581.78921.7892
H62.14281.08843.10722.94191.78921.7658
H72.14281.08843.10722.94191.78921.7658

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 108.488 C1 C2 H6 109.254
C1 C2 H7 109.254 C2 C1 O3 127.296
C2 C1 Cl4 112.635 O3 C1 Cl4 120.069
H5 C2 H6 110.700 H5 C2 H7 110.700
H6 C2 H7 108.420
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.036      
2 C -0.211      
3 O -0.114      
4 Cl -0.162      
5 H 0.156      
6 H 0.147      
7 H 0.147      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.737 -1.586 0.000 3.163
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.050 -0.102 0.000
y -0.102 -33.525 0.000
z 0.000 0.000 -28.703
Traceless
 xyz
x 2.064 -0.102 0.000
y -0.102 -4.649 0.000
z 0.000 0.000 2.585
Polar
3z2-r25.170
x2-y24.475
xy-0.102
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.284 0.888 0.000
y 0.888 5.630 0.000
z 0.000 0.000 3.037


<r2> (average value of r2) Å2
<r2> 71.028
(<r2>)1/2 8.428