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

using model chemistry: B3PW91/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-613.433313
Energy at 298.15K-613.436554
HF Energy-613.433313
Nuclear repulsion energy148.981876
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 B3PW91/aug-cc-pVTZ
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' 3162 3052 4.74      
2 A' 3059 2952 0.31      
3 A' 1895 1829 328.45      
4 A' 1455 1404 12.67      
5 A' 1381 1333 27.09      
6 A' 1113 1074 154.79      
7 A' 962 929 55.94      
8 A' 606 585 129.32      
9 A' 439 423 20.41      
10 A' 342 330 1.79      
11 A" 3134 3025 0.04      
12 A" 1457 1406 13.24      
13 A" 1040 1003 3.23      
14 A" 521 503 1.51      
15 A" 132 127 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 10348.6 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 9987.4 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 B3PW91/aug-cc-pVTZ
ABC
0.34014 0.16401 0.11296

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.539 0.000
C2 1.480 0.724 0.000
O3 -0.842 1.365 0.000
Cl4 -0.451 -1.222 0.000
H5 1.708 1.788 0.000
H6 1.905 0.240 0.879
H7 1.905 0.240 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49151.17931.81762.11622.11902.1190
C21.49152.40822.74141.08801.09001.0900
O31.17932.40822.61632.58463.09533.0953
Cl41.81762.74142.61633.70432.90852.9085
H52.11621.08802.58463.70431.79111.7911
H62.11901.09003.09532.90851.79111.7587
H72.11901.09003.09532.90851.79111.7587

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 109.256 C1 C2 H6 109.359
C1 C2 H7 109.359 C2 C1 O3 128.383
C2 C1 Cl4 111.505 O3 C1 Cl4 120.112
H5 C2 H6 110.642 H5 C2 H7 110.642
H6 C2 H7 107.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.484      
2 C -0.546      
3 O -0.482      
4 Cl -0.230      
5 H 0.229      
6 H 0.273      
7 H 0.273      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.830 0.212 0.000 2.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.309 2.717 0.000
y 2.717 -32.474 0.000
z 0.000 0.000 -29.376
Traceless
 xyz
x 1.616 2.717 0.000
y 2.717 -3.131 0.000
z 0.000 0.000 1.516
Polar
3z2-r23.031
x2-y23.165
xy2.717
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.700 0.424 0.000
y 0.424 8.053 0.000
z 0.000 0.000 4.911


<r2> (average value of r2) Å2
<r2> 101.326
(<r2>)1/2 10.066