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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-613.460004
Energy at 298.15K-613.463279
Nuclear repulsion energy148.788128
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 mPW1PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3199 3065 4.74      
2 A' 3080 2951 0.33      
3 A' 1907 1828 329.63      
4 A' 1437 1377 12.48      
5 A' 1370 1313 29.61      
6 A' 1117 1071 172.52      
7 A' 972 932 38.44      
8 A' 613 588 133.14      
9 A' 445 427 16.30      
10 A' 346 331 1.50      
11 A" 3168 3036 0.08      
12 A" 1441 1381 13.04      
13 A" 1031 988 3.27      
14 A" 523 502 1.53      
15 A" 142 136 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 10395.7 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9962.2 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 mPW1PW91/aug-cc-pVDZ
ABC
0.33884 0.16392 0.11280

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.535 0.000
C2 1.481 0.728 0.000
O3 -0.848 1.362 0.000
Cl4 -0.448 -1.221 0.000
H5 1.705 1.798 0.000
H6 1.909 0.241 0.884
H7 1.909 0.241 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49311.18431.81182.12212.12372.1237
C21.49312.41292.74221.09351.09611.0961
O31.18432.41292.61322.58953.10383.1038
Cl41.81182.74222.61323.70832.91132.9113
H52.12211.09352.58953.70831.80191.8019
H62.12371.09613.10382.91131.80191.7678
H72.12371.09613.10382.91131.80191.7678

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 109.278 C1 C2 H6 109.252
C1 C2 H7 109.252 C2 C1 O3 128.255
C2 C1 Cl4 111.780 O3 C1 Cl4 119.965
H5 C2 H6 110.766 H5 C2 H7 110.766
H6 C2 H7 107.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.047      
2 C 0.519      
3 O -0.410      
4 Cl -0.131      
5 H -0.079      
6 H 0.027      
7 H 0.027      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.885 0.219 0.000 2.894
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.448 2.816 0.000
y 2.816 -32.516 0.000
z 0.000 0.000 -29.509
Traceless
 xyz
x 1.565 2.816 0.000
y 2.816 -3.037 0.000
z 0.000 0.000 1.473
Polar
3z2-r22.946
x2-y23.068
xy2.816
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.590 0.401 0.000
y 0.401 7.950 0.000
z 0.000 0.000 4.808


<r2> (average value of r2) Å2
<r2> 101.534
(<r2>)1/2 10.076