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All results from a given calculation for ClCOClCO (Oxalyl chloride)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-1140.731127
Energy at 298.15K-1140.731392
HF Energy-1140.731127
Nuclear repulsion energy315.643964
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 PBEPBE/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 Ag 1775 1759 0.00      
2 Ag 903 895 0.00      
3 Ag 577 572 0.00      
4 Ag 375 371 0.00      
5 Ag 271 268 0.00      
6 Au 396 393 12.90      
7 Au 50 49 0.08      
8 Bg 710 703 0.00      
9 Bu 1796 1780 293.44      
10 Bu 663 657 424.30      
11 Bu 426 422 16.43      
12 Bu 202 200 5.86      

Unscaled Zero Point Vibrational Energy (zpe) 4071.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 4034.0 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 PBEPBE/3-21G
ABC
0.15348 0.04720 0.03610

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.221 0.733 0.000
C2 0.221 -0.733 0.000
O3 -1.341 1.183 0.000
O4 1.341 -1.183 0.000
Cl5 1.341 1.793 0.000
Cl6 -1.341 -1.793 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.53071.20712.47171.88822.7628
C21.53072.47171.20712.76281.8882
O31.20712.47173.57642.75112.9754
O42.47171.20713.57642.97542.7511
Cl51.88822.76282.75112.97544.4781
Cl62.76281.88822.97542.75114.4781

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 128.681 C1 C2 Cl6 107.360
C2 C1 O3 128.681 C2 C1 Cl5 107.360
O3 C1 Cl5 123.959 O4 C2 Cl6 123.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.205      
2 C 0.205      
3 O -0.287      
4 O -0.287      
5 Cl 0.082      
6 Cl 0.082      


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 -50.407 0.544 0.000
y 0.544 -50.640 0.000
z 0.000 0.000 -45.181
Traceless
 xyz
x -2.497 0.544 0.000
y 0.544 -2.846 0.000
z 0.000 0.000 5.343
Polar
3z2-r210.687
x2-y20.233
xy0.544
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.543 3.313 0.000
y 3.313 8.018 0.000
z 0.000 0.000 2.207


<r2> (average value of r2) Å2
<r2> 259.089
(<r2>)1/2 16.096