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

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-612.559377
Energy at 298.15K-612.562671
HF Energy-611.852089
Nuclear repulsion energy148.829024
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 MP2/6-31G(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' 3243 3063 2.00      
2 A' 3122 2949 0.35      
3 A' 1880 1775 230.60      
4 A' 1487 1404 11.94      
5 A' 1404 1326 23.11      
6 A' 1128 1065 159.80      
7 A' 977 923 54.34      
8 A' 611 577 139.78      
9 A' 445 420 18.48      
10 A' 347 328 0.63      
11 A" 3222 3043 0.19      
12 A" 1492 1410 11.21      
13 A" 1054 995 3.67      
14 A" 525 496 1.93      
15 A" 155 146 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 10545.3 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 9960.0 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 MP2/6-31G(2df,p)
ABC
0.33588 0.16498 0.11295

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.541 0.000
C2 1.488 0.702 0.000
O3 -0.840 1.379 0.000
Cl4 -0.456 -1.216 0.000
H5 1.728 1.764 0.000
H6 1.903 0.212 0.880
H7 1.903 0.212 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49631.18631.81542.11662.12262.1226
C21.49632.42352.73071.08821.08991.0899
O31.18632.42352.62372.59593.10793.1079
Cl41.81542.73072.62373.69422.89492.8949
H52.11661.08822.59593.69421.79221.7922
H62.12261.08993.10792.89491.79221.7607
H72.12261.08993.10792.89491.79221.7607

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 108.943 C1 C2 H6 109.316
C1 C2 H7 109.316 C2 C1 O3 128.856
C2 C1 Cl4 110.723 O3 C1 Cl4 120.421
H5 C2 H6 110.745 H5 C2 H7 110.745
H6 C2 H7 107.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability