return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-613.097926
Energy at 298.15K-613.101082
Nuclear repulsion energy146.986116
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 PBEPBE/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' 3109 3091 3.95      
2 A' 2993 2975 0.52      
3 A' 1860 1849 271.65      
4 A' 1381 1373 12.48      
5 A' 1309 1302 28.61      
6 A' 1072 1066 155.32      
7 A' 934 929 37.76      
8 A' 584 580 118.02      
9 A' 415 412 20.93      
10 A' 335 333 1.90      
11 A" 3080 3063 0.03      
12 A" 1384 1376 12.76      
13 A" 989 983 4.20      
14 A" 500 497 0.61      
15 A" 138 138 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 10041.0 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9982.7 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 PBEPBE/cc-pVDZ
ABC
0.33200 0.15951 0.10999

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.551 0.000
C2 1.491 0.726 0.000
O3 -0.850 1.391 0.000
Cl4 -0.454 -1.238 0.000
H5 1.736 1.804 0.000
H6 1.922 0.229 0.891
H7 1.922 0.229 -0.891

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.50171.19551.84562.14142.14282.1428
C21.50172.43422.76511.10541.10761.1076
O31.19552.43422.65872.61923.13543.1354
Cl41.84562.76512.65873.74902.93142.9314
H52.14141.10542.61923.74901.81961.8196
H62.14281.10763.13542.93141.81961.7818
H72.14281.10763.13542.93141.81961.7818

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 109.506 C1 C2 H6 109.482
C1 C2 H7 109.482 C2 C1 O3 128.622
C2 C1 Cl4 110.976 O3 C1 Cl4 120.401
H5 C2 H6 110.619 H5 C2 H7 110.619
H6 C2 H7 107.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.008      
2 C -0.014      
3 O -0.090      
4 Cl -0.128      
5 H 0.068      
6 H 0.086      
7 H 0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.671 0.518 0.000 2.721
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.973 2.104 0.000
y 2.104 -31.849 0.000
z 0.000 0.000 -29.226
Traceless
 xyz
x 1.564 2.104 0.000
y 2.104 -2.749 0.000
z 0.000 0.000 1.186
Polar
3z2-r22.371
x2-y22.875
xy2.104
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.286 0.563 0.000
y 0.563 7.063 0.000
z 0.000 0.000 3.299


<r2> (average value of r2) Å2
<r2> 103.263
(<r2>)1/2 10.162