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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-610.509177
Energy at 298.15K-610.512385
Nuclear repulsion energy146.329842
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 B3LYP/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' 3166 3045 4.16      
2 A' 3076 2959 0.66      
3 A' 1848 1778 221.98      
4 A' 1520 1462 16.22      
5 A' 1445 1390 38.62      
6 A' 1125 1082 101.56      
7 A' 929 894 97.57      
8 A' 553 532 132.42      
9 A' 396 381 38.45      
10 A' 347 334 0.89      
11 A" 3142 3022 0.00      
12 A" 1532 1474 17.33      
13 A" 1094 1052 7.40      
14 A" 529 508 0.99      
15 A" 156 150 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 10427.7 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 10031.5 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 B3LYP/3-21G*
ABC
0.32620 0.15860 0.10889

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 1.498 0.706 0.000
O3 -0.856 1.413 0.000
Cl4 -0.454 -1.243 0.000
H5 1.768 1.764 0.000
H6 1.908 0.208 0.884
H7 1.908 0.208 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.50391.20131.86902.13382.13342.1334
C21.50392.45732.75871.09211.09411.0941
O31.20132.45732.68632.64733.14143.1414
Cl41.86902.75872.68633.73962.91012.9101
H52.13381.09212.64733.73961.79471.7947
H62.13341.09413.14142.91011.79471.7680
H72.13341.09413.14142.91011.79471.7680

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 109.541 C1 C2 H6 109.388
C1 C2 H7 109.388 C2 C1 O3 130.218
C2 C1 Cl4 109.272 O3 C1 Cl4 120.510
H5 C2 H6 110.350 H5 C2 H7 110.350
H6 C2 H7 107.794
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.344      
2 C -0.637      
3 O -0.368      
4 Cl -0.095      
5 H 0.242      
6 H 0.257      
7 H 0.257      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.924 0.757 0.000 3.020
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.394 2.194 0.000
y 2.194 -32.642 0.000
z 0.000 0.000 -29.507
Traceless
 xyz
x 1.681 2.194 0.000
y 2.194 -3.192 0.000
z 0.000 0.000 1.511
Polar
3z2-r23.022
x2-y23.248
xy2.194
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.600 0.484 0.000
y 0.484 6.575 0.000
z 0.000 0.000 2.838


<r2> (average value of r2) Å2
<r2> 104.239
(<r2>)1/2 10.210