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 ClCOClCO (Oxalyl chloride)

using model chemistry: PBEPBEultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at PBEPBEultrafine/6-31+G**
 hartrees
Energy at 0K-1146.419864
Energy at 298.15K-1146.420152
HF Energy-1146.419864
Nuclear repulsion energy322.962501
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 PBEPBEultrafine/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 Ag 1787 1767 0.00      
2 Ag 1008 997 0.00      
3 Ag 594 587 0.00      
4 Ag 408 404 0.00      
5 Ag 277 274 0.00      
6 Au 368 364 13.17      
7 Au 11 11 0.85      
8 Bg 688 681 0.00      
9 Bu 1819 1798 426.70      
10 Bu 739 731 502.21      
11 Bu 473 467 8.90      
12 Bu 198 196 3.60      

Unscaled Zero Point Vibrational Energy (zpe) 4184.6 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 4136.9 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 PBEPBEultrafine/6-31+G**
ABC
0.16084 0.04912 0.03763

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.173 0.762 0.000
C2 0.173 -0.762 0.000
O3 -1.287 1.207 0.000
O4 1.287 -1.207 0.000
Cl5 1.287 1.765 0.000
Cl6 -1.287 -1.765 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.56231.19962.45091.77192.7615
C21.56232.45091.19962.76151.7719
O31.19962.45093.52862.63432.9717
O42.45091.19963.52862.97172.6343
Cl51.77192.76152.63432.97174.3693
Cl62.76151.77192.97172.63434.3693

picture of Oxalyl chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 124.576 C1 C2 Cl6 111.687
C2 C1 O3 124.576 C2 C1 Cl5 111.687
O3 C1 Cl5 123.737 O4 C2 Cl6 123.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.056      
2 C 0.056      
3 O -0.222      
4 O -0.222      
5 Cl 0.166      
6 Cl 0.166      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -49.632 3.932 0.000
y 3.932 -48.712 0.000
z 0.000 0.000 -44.876
Traceless
 xyz
x -2.839 3.932 0.000
y 3.932 -1.458 0.000
z 0.000 0.000 4.296
Polar
3z2-r28.593
x2-y2-0.921
xy3.932
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.883 2.350 0.000
y 2.350 9.540 0.000
z 0.000 0.000 4.714


<r2> (average value of r2) Å2
<r2> 249.212
(<r2>)1/2 15.786