return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP3=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31+G**
 hartrees
Energy at 0K-612.473065
Energy at 298.15K-612.476405
HF Energy-611.839912
Nuclear repulsion energy149.380399
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 MP3=FULL/6-31+G**
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' 3272 3048 3.99      
2 A' 3154 2938 0.80      
3 A' 1929 1798 319.23      
4 A' 1524 1420 12.45      
5 A' 1456 1356 21.32      
6 A' 1172 1092 167.08      
7 A' 1010 941 50.79      
8 A' 650 605 119.65      
9 A' 477 445 7.84      
10 A' 357 333 1.06      
11 A" 3243 3021 1.14      
12 A" 1522 1418 11.69      
13 A" 1081 1007 1.48      
14 A" 533 496 2.86      
15 A" 133 124 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 10755.8 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 10020.1 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 MP3=FULL/6-31+G**
ABC
0.34058 0.16552 0.11373

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.528 0.000
C2 1.485 0.726 0.000
O3 -0.847 1.358 0.000
Cl4 -0.450 -1.217 0.000
H5 1.697 1.790 0.000
H6 1.912 0.251 0.878
H7 1.912 0.251 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49811.18611.80212.11482.12222.1222
C21.49812.41592.74251.08421.08611.0861
O31.18612.41592.60572.58043.09973.0997
Cl41.80212.74252.60573.69472.91672.9167
H52.11481.08422.58043.69471.78441.7844
H62.12221.08613.09972.91671.78441.7569
H72.12221.08613.09972.91671.78441.7569

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 108.905 C1 C2 H6 109.374
C1 C2 H7 109.374 C2 C1 O3 127.954
C2 C1 Cl4 112.078 O3 C1 Cl4 119.968
H5 C2 H6 110.605 H5 C2 H7 110.605
H6 C2 H7 107.956
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability