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

using model chemistry: PBEPBE/3-21G

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/3-21G
 hartrees
Energy at 0K-610.015410
Energy at 298.15K-610.018534
Nuclear repulsion energy143.170165
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/3-21G
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' 3100 3072 4.66      
2 A' 3006 2979 1.98      
3 A' 1847 1830 210.31      
4 A' 1471 1458 15.25      
5 A' 1393 1380 47.80      
6 A' 1084 1074 106.31      
7 A' 916 907 78.65      
8 A' 531 526 122.57      
9 A' 370 366 26.65      
10 A' 323 320 1.83      
11 A" 3083 3055 1.11      
12 A" 1478 1464 18.61      
13 A" 1053 1044 9.42      
14 A" 498 494 0.29      
15 A" 168 166 1.18      

Unscaled Zero Point Vibrational Energy (zpe) 10159.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 10067.0 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/3-21G
ABC
0.31848 0.14896 0.10348

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.635 0.000
C2 1.495 0.728 0.000
O3 -0.883 1.455 0.000
Cl4 -0.440 -1.295 0.000
H5 1.808 1.784 0.000
H6 1.887 0.207 0.889
H7 1.887 0.207 -0.889

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49751.20491.97972.14222.12942.1294
C21.49752.48642.79921.10161.10291.1029
O31.20492.48642.78532.71143.16563.1656
Cl41.97972.79922.78533.81252.90872.9087
H52.14221.10162.71143.81251.81251.8125
H62.12941.10293.16562.90871.81251.7787
H72.12941.10293.16562.90871.81251.7787

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 110.088 C1 C2 H6 109.000
C1 C2 H7 109.000 C2 C1 O3 133.586
C2 C1 Cl4 106.398 O3 C1 Cl4 120.017
H5 C2 H6 110.602 H5 C2 H7 110.602
H6 C2 H7 107.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.287      
2 C -0.670      
3 O -0.319      
4 Cl -0.119      
5 H 0.258      
6 H 0.282      
7 H 0.282      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.135 1.638 0.000 3.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.090 1.762 0.000
y 1.762 -33.051 0.000
z 0.000 0.000 -29.676
Traceless
 xyz
x 2.274 1.762 0.000
y 1.762 -3.668 0.000
z 0.000 0.000 1.394
Polar
3z2-r22.788
x2-y23.961
xy1.762
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.553 0.622 0.000
y 0.622 7.019 0.000
z 0.000 0.000 2.581


<r2> (average value of r2) Å2
<r2> 108.333
(<r2>)1/2 10.408