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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-43.955809
Energy at 298.15K-43.958989
Nuclear repulsion energy58.550179
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/CEP-121G
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' 3141 3061 8.47      
2 A' 3023 2946 1.81      
3 A' 1763 1718 304.34      
4 A' 1488 1450 23.53      
5 A' 1424 1387 31.23      
6 A' 1126 1097 128.94      
7 A' 953 929 75.45      
8 A' 569 555 131.72      
9 A' 408 398 19.38      
10 A' 324 316 2.45      
11 A" 3116 3037 3.15      
12 A" 1482 1444 19.17      
13 A" 1067 1040 3.88      
14 A" 494 481 2.05      
15 A" 143 139 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 10260.1 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 9998.5 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/CEP-121G
ABC
0.32315 0.15076 0.10481

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.297 0.000
C2 1.442 -0.176 0.000
O3 -0.433 1.438 0.000
Cl4 -1.218 -1.173 0.000
H5 2.105 0.693 0.000
H6 1.626 -0.796 0.884
H7 1.626 -0.796 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.51721.22031.90872.14212.14882.1488
C21.51722.47322.84071.09331.09531.0953
O31.22032.47322.72612.64463.16333.1633
Cl41.90872.84072.72613.81143.00163.0016
H52.14211.09332.64463.81141.79711.7971
H62.14881.09533.16333.00161.79711.7677
H72.14881.09533.16333.00161.79711.7677

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 109.207 C1 C2 H6 109.616
C1 C2 H7 109.616 C2 C1 O3 128.905
C2 C1 Cl4 111.520 O3 C1 Cl4 119.574
H5 C2 H6 110.393 H5 C2 H7 110.393
H6 C2 H7 107.596
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.034      
2 C -0.484      
3 O -0.040      
4 Cl -0.050      
5 H 0.196      
6 H 0.206      
7 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.370 -0.816 0.000 3.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.368 -0.280 0.000
y -0.280 -34.274 0.000
z 0.000 0.000 -29.098
Traceless
 xyz
x 2.318 -0.280 0.000
y -0.280 -5.041 0.000
z 0.000 0.000 2.723
Polar
3z2-r25.446
x2-y24.906
xy-0.280
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.952 1.231 0.000
y 1.231 6.845 0.000
z 0.000 0.000 3.194


<r2> (average value of r2) Å2
<r2> 74.666
(<r2>)1/2 8.641