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

using model chemistry: B1B95/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-613.441440
Energy at 298.15K-613.444679
Nuclear repulsion energy149.199511
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(2df,p)
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' 3192 3057 4.17      
2 A' 3077 2947 0.28      
3 A' 1936 1854 289.23      
4 A' 1452 1391 11.45      
5 A' 1375 1317 25.25      
6 A' 1111 1064 165.32      
7 A' 965 924 46.39      
8 A' 607 582 131.43      
9 A' 442 423 15.76      
10 A' 337 322 1.15      
11 A" 3165 3031 0.02      
12 A" 1457 1395 11.12      
13 A" 1035 991 4.15      
14 A" 520 498 1.88      
15 A" 140 134 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 10404.4 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9964.3 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(2df,p)
ABC
0.33923 0.16518 0.11342

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.536 0.000
C2 1.484 0.707 0.000
O3 -0.834 1.369 0.000
Cl4 -0.457 -1.213 0.000
H5 1.725 1.769 0.000
H6 1.905 0.218 0.879
H7 1.905 0.218 -0.879

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49361.17891.80702.12032.12212.1221
C21.49362.41062.72971.08881.09101.0910
O31.17892.41062.60862.59023.09873.0987
Cl41.80702.72972.60863.69442.89762.8976
H52.12031.08882.59023.69441.79241.7924
H62.12211.09103.09872.89761.79241.7584
H72.12211.09103.09872.89761.79241.7584

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 109.381 C1 C2 H6 109.392
C1 C2 H7 109.392 C2 C1 O3 128.455
C2 C1 Cl4 111.236 O3 C1 Cl4 120.309
H5 C2 H6 110.626 H5 C2 H7 110.626
H6 C2 H7 107.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.344      
2 C -0.481      
3 O -0.219      
4 Cl -0.183      
5 H 0.171      
6 H 0.184      
7 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.716 0.353 0.000 2.739
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.812 2.338 0.000
y 2.338 -31.761 0.000
z 0.000 0.000 -28.891
Traceless
 xyz
x 1.514 2.338 0.000
y 2.338 -2.909 0.000
z 0.000 0.000 1.395
Polar
3z2-r22.790
x2-y22.949
xy2.338
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.449 0.475 0.000
y 0.475 6.939 0.000
z 0.000 0.000 3.786


<r2> (average value of r2) Å2
<r2> 100.657
(<r2>)1/2 10.033