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

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-613.458466
Energy at 298.15K-613.461711
Nuclear repulsion energy148.736234
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/cc-pVDZ
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' 3200 3076 3.05      
2 A' 3078 2959 0.48      
3 A' 1932 1857 315.74      
4 A' 1426 1371 13.15      
5 A' 1358 1305 29.21      
6 A' 1111 1068 175.56      
7 A' 967 929 34.95      
8 A' 607 583 131.34      
9 A' 439 422 18.65      
10 A' 340 326 1.18      
11 A" 3170 3047 0.00      
12 A" 1430 1375 12.96      
13 A" 1024 985 4.85      
14 A" 517 497 1.41      
15 A" 143 137 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 10371.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 9968.9 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 B1B95/cc-pVDZ
ABC
0.33857 0.16381 0.11273

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.538 0.000
C2 1.482 0.718 0.000
O3 -0.841 1.370 0.000
Cl4 -0.453 -1.220 0.000
H5 1.718 1.787 0.000
H6 1.908 0.227 0.884
H7 1.908 0.227 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49271.18291.81472.12452.12592.1259
C21.49272.41212.73811.09521.09761.0976
O31.18292.41212.61842.59243.10543.1054
Cl41.81472.73812.61843.70872.90702.9070
H52.12451.09522.59243.70871.80331.8033
H62.12591.09763.10542.90701.80331.7687
H72.12591.09763.10542.90701.80331.7687

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 109.397 C1 C2 H6 109.374
C1 C2 H7 109.374 C2 C1 O3 128.346
C2 C1 Cl4 111.392 O3 C1 Cl4 120.262
H5 C2 H6 110.647 H5 C2 H7 110.647
H6 C2 H7 107.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.023      
2 C -0.007      
3 O -0.122      
4 Cl -0.131      
5 H 0.069      
6 H 0.085      
7 H 0.085      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.743 0.388 0.000 2.770
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.959 2.246 0.000
y 2.246 -31.843 0.000
z 0.000 0.000 -29.049
Traceless
 xyz
x 1.487 2.246 0.000
y 2.246 -2.839 0.000
z 0.000 0.000 1.352
Polar
3z2-r22.703
x2-y22.884
xy2.246
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.045 0.483 0.000
y 0.483 6.707 0.000
z 0.000 0.000 3.227


<r2> (average value of r2) Å2
<r2> 101.243
(<r2>)1/2 10.062