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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-610.397405
Energy at 298.15K-610.400577
Nuclear repulsion energy143.761859
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' 3164 3053 3.62      
2 A' 3078 2970 1.84      
3 A' 1904 1837 256.75      
4 A' 1519 1466 15.14      
5 A' 1446 1395 41.89      
6 A' 1121 1081 107.45      
7 A' 927 894 91.54      
8 A' 539 520 137.70      
9 A' 375 362 34.03      
10 A' 327 316 1.64      
11 A" 3149 3038 0.65      
12 A" 1527 1473 17.30      
13 A" 1095 1057 9.03      
14 A" 511 493 1.26      
15 A" 170 164 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 10424.8 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 10058.9 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
0.32228 0.14947 0.10409

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 0.633 0.000
C2 1.492 0.738 0.000
O3 -0.878 1.439 0.000
Cl4 -0.441 -1.293 0.000
H5 1.789 1.789 0.000
H6 1.887 0.228 0.883
H7 1.887 0.228 -0.883

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49601.19251.97582.13072.12232.1223
C21.49602.47212.80401.09271.09371.0937
O31.19252.47212.76752.69053.14533.1453
Cl41.97582.80402.76753.80482.91732.9173
H52.13071.09272.69053.80481.79681.7968
H62.12231.09373.14532.91731.79681.7668
H72.12231.09373.14532.91731.79681.7668

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 109.811 C1 C2 H6 109.082
C1 C2 H7 109.082 C2 C1 O3 133.396
C2 C1 Cl4 106.920 O3 C1 Cl4 119.684
H5 C2 H6 110.536 H5 C2 H7 110.536
H6 C2 H7 107.746
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 0.330     0.593
2 C -0.631     -0.394
3 O -0.346     -0.321
4 Cl -0.136     -0.324
5 H 0.246     0.144
6 H 0.268     0.151
7 H 0.268     0.151


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.219 1.686 0.000 3.634
CHELPG        
AIM        
ESP 3.187 1.772 0.000 3.647


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.272 1.884 0.000
y 1.884 -33.359 0.000
z 0.000 0.000 -29.636
Traceless
 xyz
x 2.225 1.884 0.000
y 1.884 -3.904 0.000
z 0.000 0.000 1.679
Polar
3z2-r23.359
x2-y24.086
xy1.884
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.369 0.609 0.000
y 0.609 6.869 0.000
z 0.000 0.000 2.521


<r2> (average value of r2) Å2
<r2> 107.911
(<r2>)1/2 10.388