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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-613.480986
Energy at 298.15K-613.484262
Nuclear repulsion energy148.941804
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 mPW1PW91/6-311G**
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' 3188 3050 4.36      
2 A' 3079 2946 0.42      
3 A' 1939 1855 344.02      
4 A' 1463 1400 13.54      
5 A' 1391 1330 32.25      
6 A' 1123 1074 173.98      
7 A' 972 930 57.29      
8 A' 611 584 143.11      
9 A' 443 424 23.93      
10 A' 345 330 1.35      
11 A" 3160 3023 0.21      
12 A" 1468 1405 14.01      
13 A" 1046 1001 5.13      
14 A" 525 502 1.49      
15 A" 143 137 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 10448.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9995.8 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 mPW1PW91/6-311G**
ABC
0.34030 0.16372 0.11285

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.539 0.000
C2 1.481 0.724 0.000
O3 -0.840 1.363 0.000
Cl4 -0.453 -1.221 0.000
H5 1.708 1.789 0.000
H6 1.909 0.242 0.880
H7 1.909 0.242 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49291.17651.81692.11612.12292.1229
C21.49292.40762.74261.08831.09061.0906
O31.17652.40762.61212.58323.09643.0964
Cl41.81692.74262.61213.70442.91362.9136
H52.11611.08832.58323.70441.79091.7909
H62.12291.09063.09642.91361.79091.7593
H72.12291.09063.09642.91361.79091.7593

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 109.130 C1 C2 H6 109.528
C1 C2 H7 109.528 C2 C1 O3 128.443
C2 C1 Cl4 111.548 O3 C1 Cl4 120.010
H5 C2 H6 110.554 H5 C2 H7 110.554
H6 C2 H7 107.524
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.166      
2 C -0.321      
3 O -0.230      
4 Cl -0.126      
5 H 0.163      
6 H 0.174      
7 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.947 0.474 0.000 2.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.538 2.331 0.000
y 2.331 -32.516 0.000
z 0.000 0.000 -29.561
Traceless
 xyz
x 1.501 2.331 0.000
y 2.331 -2.967 0.000
z 0.000 0.000 1.466
Polar
3z2-r22.932
x2-y22.978
xy2.331
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.153 0.524 0.000
y 0.524 7.105 0.000
z 0.000 0.000 3.266


<r2> (average value of r2) Å2
<r2> 101.507
(<r2>)1/2 10.075