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

using model chemistry: QCISD/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 QCISD/cc-pVTZ
 hartrees
Energy at 0K-612.706717
Energy at 298.15K-612.710030
HF Energy-611.927118
Nuclear repulsion energy149.104353
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 QCISD/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' 3185 3043 4.72      
2 A' 3081 2944 0.82      
3 A' 1890 1805 277.24      
4 A' 1486 1420 11.33      
5 A' 1413 1350 18.83      
6 A' 1142 1091 154.88      
7 A' 983 939 53.86      
8 A' 623 596 123.75      
9 A' 458 437 11.30      
10 A' 347 332 1.04      
11 A" 3160 3020 0.99      
12 A" 1492 1426 10.59      
13 A" 1061 1014 2.35      
14 A" 527 503 2.69      
15 A" 145 139 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 10495.8 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 10028.7 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 QCISD/cc-pVTZ
ABC
0.33910 0.16484 0.11325

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.535 0.000
C2 1.487 0.715 0.000
O3 -0.838 1.370 0.000
Cl4 -0.456 -1.217 0.000
H5 1.719 1.776 0.000
H6 1.906 0.230 0.880
H7 1.906 0.230 -0.880

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49741.18251.81072.11982.12142.1214
C21.49742.41522.73931.08671.08841.0884
O31.18252.41522.61482.58873.09893.0989
Cl41.81072.73932.61483.69972.90602.9060
H52.11981.08672.58873.69971.78901.7890
H62.12141.08843.09892.90601.78901.7591
H72.12141.08843.09892.90601.78901.7591

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 109.199 C1 C2 H6 109.226
C1 C2 H7 109.226 C2 C1 O3 128.249
C2 C1 Cl4 111.453 O3 C1 Cl4 120.298
H5 C2 H6 110.667 H5 C2 H7 110.667
H6 C2 H7 107.823
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability