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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G
 hartrees
Energy at 0K-609.157366
Energy at 298.15K-609.160520
HF Energy-608.780497
Nuclear repulsion energy142.010472
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=FULL/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' 3202 3058 2.39      
2 A' 3109 2969 2.12      
3 A' 1837 1754 224.21      
4 A' 1559 1488 16.05      
5 A' 1479 1413 32.82      
6 A' 1142 1090 101.86      
7 A' 917 876 107.02      
8 A' 526 502 151.85      
9 A' 358 342 58.18      
10 A' 320 306 2.81      
11 A" 3196 3052 0.64      
12 A" 1565 1494 14.93      
13 A" 1124 1074 6.50      
14 A" 504 481 1.99      
15 A" 180 172 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 10509.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 10034.7 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=FULL/3-21G
ABC
0.31673 0.14464 0.10118

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.652 0.000
C2 1.502 0.756 0.000
O3 -0.894 1.458 0.000
Cl4 -0.438 -1.319 0.000
H5 1.794 1.809 0.000
H6 1.891 0.248 0.886
H7 1.891 0.248 -0.886

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.50551.20342.01932.13442.12692.1269
C21.50552.49642.84021.09281.09281.0928
O31.20342.49642.81462.71023.16293.1629
Cl42.01932.84022.81463.84232.94282.9428
H52.13441.09282.71023.84231.79781.7978
H62.12691.09283.16292.94281.79781.7714
H72.12691.09283.16292.94281.79781.7714

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 109.440 C1 C2 H6 108.844
C1 C2 H7 108.844 C2 C1 O3 134.000
C2 C1 Cl4 106.460 O3 C1 Cl4 119.540
H5 C2 H6 110.687 H5 C2 H7 110.687
H6 C2 H7 108.292
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability