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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-612.678612
Energy at 298.15K-612.681903
HF Energy-611.926525
Nuclear repulsion energy149.022654
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/cc-pVTZ
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' 3215 3053 3.14      
2 A' 3097 2941 0.39      
3 A' 1853 1759 246.09      
4 A' 1478 1404 12.44      
5 A' 1394 1324 23.41      
6 A' 1128 1071 157.11      
7 A' 976 926 53.55      
8 A' 612 581 134.84      
9 A' 446 424 18.83      
10 A' 348 330 0.74      
11 A" 3190 3029 0.02      
12 A" 1485 1410 11.93      
13 A" 1049 996 2.43      
14 A" 522 496 1.74      
15 A" 147 139 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 10470.1 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 9941.3 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/cc-pVTZ
ABC
0.33758 0.16517 0.11322

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.539 0.000
C2 1.484 0.706 0.000
O3 -0.839 1.378 0.000
Cl4 -0.453 -1.217 0.000
H5 1.723 1.765 0.000
H6 1.898 0.217 0.878
H7 1.898 0.217 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49321.18691.81392.11432.11612.1161
C21.49322.41832.72991.08541.08721.0872
O31.18692.41832.62422.59073.10053.1005
Cl41.81392.72992.62423.69172.89122.8912
H52.11431.08542.59073.69171.78811.7881
H62.11611.08723.10052.89121.78811.7562
H72.11611.08723.10052.89121.78811.7562

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 109.133 C1 C2 H6 109.176
C1 C2 H7 109.176 C2 C1 O3 128.567
C2 C1 Cl4 110.901 O3 C1 Cl4 120.531
H5 C2 H6 110.787 H5 C2 H7 110.787
H6 C2 H7 107.745
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability