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

using model chemistry: MP2/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-43.699751
Energy at 298.15K-43.703026
HF Energy-43.115669
Nuclear repulsion energy59.665954
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/CEP-121G*
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' 3221 3069 4.68      
2 A' 3093 2947 1.48      
3 A' 1810 1725 261.13      
4 A' 1505 1434 15.78      
5 A' 1430 1363 23.76      
6 A' 1144 1090 150.08      
7 A' 977 931 71.99      
8 A' 615 586 139.49      
9 A' 444 423 16.57      
10 A' 346 330 0.97      
11 A" 3196 3045 1.34      
12 A" 1503 1432 14.24      
13 A" 1066 1015 1.43      
14 A" 508 484 2.15      
15 A" 150 143 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 10503.9 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 10008.1 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/CEP-121G*
ABC
0.32974 0.16172 0.11075

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.532 0.000
C2 1.503 0.718 0.000
O3 -0.852 1.387 0.000
Cl4 -0.457 -1.227 0.000
H5 1.726 1.787 0.000
H6 1.924 0.233 0.884
H7 1.924 0.233 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.51491.20681.81752.13322.13872.1387
C21.51492.44872.76191.09101.09291.0929
O31.20682.44872.64312.60863.13403.1340
Cl41.81752.76192.64313.72082.93002.9300
H52.13321.09102.60863.72081.79851.7985
H62.13871.09293.13402.93001.79851.7684
H72.13871.09293.13402.93001.79851.7684

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 108.800 C1 C2 H6 109.122
C1 C2 H7 109.122 C2 C1 O3 127.872
C2 C1 Cl4 111.632 O3 C1 Cl4 120.496
H5 C2 H6 110.882 H5 C2 H7 110.882
H6 C2 H7 107.998
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability