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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-613.422153
Energy at 298.15K-613.425398
Nuclear repulsion energy149.011839
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 B1B95/6-31G*
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' 3216 3053 3.55      
2 A' 3103 2945 0.20      
3 A' 1947 1848 304.80      
4 A' 1489 1413 13.80      
5 A' 1412 1340 29.60      
6 A' 1133 1076 172.74      
7 A' 982 932 50.37      
8 A' 617 585 135.20      
9 A' 447 424 16.90      
10 A' 343 325 1.08      
11 A" 3185 3024 0.12      
12 A" 1492 1416 13.29      
13 A" 1055 1001 4.98      
14 A" 520 493 2.19      
15 A" 136 130 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 10537.0 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 10002.7 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 B1B95/6-31G*
ABC
0.33942 0.16448 0.11311

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.531 0.000
C2 1.483 0.716 0.000
O3 -0.838 1.367 0.000
Cl4 -0.455 -1.216 0.000
H5 1.710 1.781 0.000
H6 1.913 0.235 0.880
H7 1.913 0.235 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49451.18391.80492.11882.12682.1268
C21.49452.41022.73661.08901.09151.0915
O31.18392.41022.61162.58133.10233.1023
Cl41.80492.73662.61163.69762.91392.9139
H52.11881.08902.58133.69761.79041.7904
H62.12681.09153.10232.91391.79041.7606
H72.12681.09153.10232.91391.79041.7606

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 109.188 C1 C2 H6 109.672
C1 C2 H7 109.672 C2 C1 O3 127.893
C2 C1 Cl4 111.733 O3 C1 Cl4 120.374
H5 C2 H6 110.389 H5 C2 H7 110.389
H6 C2 H7 107.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.299      
2 C -0.559      
3 O -0.334      
4 Cl -0.065      
5 H 0.216      
6 H 0.222      
7 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.831 0.333 0.000 2.850
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.022 2.348 0.000
y 2.348 -32.002 0.000
z 0.000 0.000 -29.051
Traceless
 xyz
x 1.505 2.348 0.000
y 2.348 -2.965 0.000
z 0.000 0.000 1.461
Polar
3z2-r22.922
x2-y22.980
xy2.348
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.888 0.402 0.000
y 0.402 6.657 0.000
z 0.000 0.000 3.189


<r2> (average value of r2) Å2
<r2> 101.023
(<r2>)1/2 10.051