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

using model chemistry: B3PW91/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-613.367548
Energy at 298.15K-613.370798
Nuclear repulsion energy148.255084
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/cc-pVDZ
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' 3186 3075 3.06      
2 A' 3067 2960 0.57      
3 A' 1923 1856 314.39      
4 A' 1429 1379 13.35      
5 A' 1361 1313 28.80      
6 A' 1110 1072 169.23      
7 A' 965 932 41.64      
8 A' 606 585 129.02      
9 A' 437 422 19.56      
10 A' 344 332 1.59      
11 A" 3160 3050 0.01      
12 A" 1434 1384 13.27      
13 A" 1028 992 5.09      
14 A" 519 501 1.36      
15 A" 143 138 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 10356.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9994.3 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 B3PW91/cc-pVDZ
ABC
0.33706 0.16246 0.11193

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.541 0.000
C2 1.485 0.723 0.000
O3 -0.843 1.373 0.000
Cl4 -0.454 -1.225 0.000
H5 1.720 1.795 0.000
H6 1.914 0.234 0.886
H7 1.914 0.234 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49631.18461.82392.12842.13182.1318
C21.49632.41762.74881.09761.09971.0997
O31.18462.41762.62752.59763.11263.1126
Cl41.82392.74882.62753.72132.91912.9191
H52.12841.09762.59763.72131.80621.8062
H62.13181.09973.11262.91911.80621.7728
H72.13181.09973.11262.91911.80621.7728

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 109.317 C1 C2 H6 109.457
C1 C2 H7 109.457 C2 C1 O3 128.414
C2 C1 Cl4 111.383 O3 C1 Cl4 120.204
H5 C2 H6 110.578 H5 C2 H7 110.578
H6 C2 H7 107.425
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.032      
2 C -0.043      
3 O -0.125      
4 Cl -0.135      
5 H 0.081      
6 H 0.096      
7 H 0.096      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.776 0.431 0.000 2.810
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.968 2.260 0.000
y 2.260 -31.909 0.000
z 0.000 0.000 -29.087
Traceless
 xyz
x 1.530 2.260 0.000
y 2.260 -2.881 0.000
z 0.000 0.000 1.351
Polar
3z2-r22.702
x2-y22.941
xy2.260
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 101.846
(<r2>)1/2 10.092