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

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-608.889538
Energy at 298.15K-608.892967
Nuclear repulsion energy149.025913
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/3-21G*
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' 3317 2994 2.32      
2 A' 3225 2911 0.49      
3 A' 1977 1784 284.40      
4 A' 1623 1465 17.60      
5 A' 1569 1416 34.05      
6 A' 1219 1100 126.14      
7 A' 1004 906 116.27      
8 A' 607 548 158.99      
9 A' 462 417 24.00      
10 A' 373 337 0.39      
11 A" 3292 2971 0.17      
12 A" 1639 1479 18.07      
13 A" 1191 1075 8.21      
14 A" 578 522 4.51      
15 A" 169 152 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 11121.5 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 10038.3 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/3-21G*
ABC
0.33669 0.16518 0.11312

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.532 0.000
C2 1.491 0.706 0.000
O3 -0.839 1.370 0.000
Cl4 -0.458 -1.212 0.000
H5 1.723 1.761 0.000
H6 1.912 0.232 0.877
H7 1.912 0.232 -0.877

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.50081.18541.80352.11672.12502.1250
C21.50082.42222.73441.08021.08241.0824
O31.18542.42222.60992.59203.10373.1037
Cl41.80352.73442.60993.68762.91042.9104
H52.11671.08022.59203.68761.77301.7730
H62.12501.08243.10372.91041.77301.7534
H72.12501.08243.10372.91041.77301.7534

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 109.101 C1 C2 H6 109.634
C1 C2 H7 109.634 C2 C1 O3 128.386
C2 C1 Cl4 111.367 O3 C1 Cl4 120.248
H5 C2 H6 110.136 H5 C2 H7 110.136
H6 C2 H7 108.185
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.452 0.699    
2 C -0.692 -0.318    
3 O -0.489 -0.472    
4 Cl -0.075 -0.245    
5 H 0.267 0.124    
6 H 0.268 0.106    
7 H 0.268 0.106    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.174 0.205 0.000 3.181
CHELPG 3.138 0.321 0.000 3.154
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.263 2.810 0.000
y 2.810 -33.572 0.000
z 0.000 0.000 -29.873
Traceless
 xyz
x 1.459 2.810 0.000
y 2.810 -3.504 0.000
z 0.000 0.000 2.045
Polar
3z2-r24.089
x2-y23.309
xy2.810
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.310 0.307 0.000
y 0.307 5.992 0.000
z 0.000 0.000 2.770


<r2> (average value of r2) Å2
<r2> 101.747
(<r2>)1/2 10.087