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: B3LYPultrafine/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 B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-613.545946
Energy at 298.15K-613.549175
HF Energy-613.545946
Nuclear repulsion energy148.265194
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 B3LYPultrafine/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' 3146 3041 5.83      
2 A' 3052 2951 0.47      
3 A' 1893 1830 318.83      
4 A' 1466 1417 12.10      
5 A' 1393 1346 23.54      
6 A' 1113 1076 137.91      
7 A' 956 924 70.94      
8 A' 596 576 127.94      
9 A' 426 412 26.36      
10 A' 341 330 2.05      
11 A" 3119 3016 0.37      
12 A" 1467 1419 12.08      
13 A" 1048 1013 3.28      
14 A" 520 503 1.95      
15 A" 135 131 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 10335.7 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 9991.5 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 B3LYPultrafine/cc-pVTZ
ABC
0.33903 0.16144 0.11161

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.544 0.000
C2 1.485 0.732 0.000
O3 -0.841 1.370 0.000
Cl4 -0.454 -1.230 0.000
H5 1.712 1.795 0.000
H6 1.913 0.250 0.878
H7 1.913 0.250 -0.878

Atom - Atom Distances (Å)
  C1 C2 O3 Cl4 H5 H6 H7
C11.49681.17931.83142.12092.12552.1255
C21.49682.41222.75871.08721.08941.0894
O31.17932.41222.62922.58893.10063.1006
Cl41.83142.75872.62923.72122.92682.9268
H52.12091.08722.58893.72121.78861.7886
H62.12551.08943.10062.92681.78861.7559
H72.12551.08943.10062.92681.78861.7559

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 109.302 C1 C2 H6 109.541
C1 C2 H7 109.541 C2 C1 O3 128.291
C2 C1 Cl4 111.579 O3 C1 Cl4 120.130
H5 C2 H6 110.517 H5 C2 H7 110.517
H6 C2 H7 107.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.221      
2 C -0.255      
3 O -0.173      
4 Cl -0.173      
5 H 0.124      
6 H 0.128      
7 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.812 0.351 0.000 2.833
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.479 2.526 0.003
y 2.526 -32.568 -0.000
z 0.003 -0.000 -29.494
Traceless
 xyz
x 1.552 2.526 0.003
y 2.526 -3.081 -0.000
z 0.003 -0.000 1.530
Polar
3z2-r23.059
x2-y23.089
xy2.526
xz0.003
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.855 0.517 0.000
y 0.517 7.492 0.000
z 0.000 0.000 4.022


<r2> (average value of r2) Å2
<r2> 102.342
(<r2>)1/2 10.116