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

using model chemistry: MP2/6-31G**

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**
 hartrees
Energy at 0K-612.419713
Energy at 298.15K-612.423019
HF Energy-611.833705
Nuclear repulsion energy148.582327
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**
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' 3275 3067 3.05      
2 A' 3150 2950 0.33      
3 A' 1864 1746 223.54      
4 A' 1523 1426 12.54      
5 A' 1441 1349 22.05      
6 A' 1157 1083 160.11      
7 A' 997 933 58.45      
8 A' 626 586 134.70      
9 A' 454 425 16.99      
10 A' 354 331 0.75      
11 A" 3249 3043 0.37      
12 A" 1527 1430 10.75      
13 A" 1075 1007 2.66      
14 A" 523 490 2.67      
15 A" 145 135 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 10678.7 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 10000.6 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**
ABC
0.33613 0.16409 0.11256

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.523 0.000
C2 1.487 0.714 0.000
O3 -0.843 1.378 0.000
Cl4 -0.454 -1.218 0.000
H5 1.704 1.778 0.000
H6 1.914 0.238 0.880
H7 1.914 0.238 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49971.20061.79922.11622.12612.1261
C21.49972.42362.73861.08571.08781.0878
O31.20062.42362.62472.57883.11123.1112
Cl41.79922.73862.62473.69192.91542.9154
H52.11621.08572.57883.69191.78631.7863
H62.12611.08783.11122.91541.78631.7597
H72.12611.08783.11122.91541.78631.7597

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 108.822 C1 C2 H6 109.479
C1 C2 H7 109.479 C2 C1 O3 127.314
C2 C1 Cl4 111.915 O3 C1 Cl4 120.771
H5 C2 H6 110.541 H5 C2 H7 110.541
H6 C2 H7 107.963
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability