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: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-1147.000230
Energy at 298.15K-1147.000685
HF Energy-1147.000230
Nuclear repulsion energy326.748311
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 B3PW91/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 Ag 1859 1787 0.00      
2 Ag 1059 1018 0.00      
3 Ag 615 592 0.00      
4 Ag 429 413 0.00      
5 Ag 284 273 0.00      
6 Au 389 374 16.70      
7 Au 20 19 0.80      
8 Bg 734 706 0.00      
9 Bu 1890 1817 441.33      
10 Bu 767 738 527.71      
11 Bu 494 475 7.53      
12 Bu 204 196 3.72      

Unscaled Zero Point Vibrational Energy (zpe) 4371.7 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 4203.9 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 B3PW91/cc-pVTZ
ABC
0.16519 0.05012 0.03845

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.174 0.756 0.000
C2 0.174 -0.756 0.000
O3 -1.270 1.190 0.000
O4 1.270 -1.190 0.000
Cl5 1.270 1.750 0.000
Cl6 -1.270 -1.750 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.55191.17902.42351.75312.7354
C21.55192.42351.17902.73541.7531
O31.17902.42353.48112.60162.9398
O42.42351.17903.48112.93982.6016
Cl51.75312.73542.60162.93984.3247
Cl62.73541.75312.93982.60164.3247

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 124.538 C1 C2 Cl6 111.575
C2 C1 O3 124.538 C2 C1 Cl5 111.575
O3 C1 Cl5 123.887 O4 C2 Cl6 123.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.183      
2 C 0.183      
3 O -0.138      
4 O -0.138      
5 Cl -0.045      
6 Cl -0.045      


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 -48.749 3.795 0.000
y 3.795 -47.743 0.000
z 0.000 0.000 -44.076
Traceless
 xyz
x -2.839 3.795 0.000
y 3.795 -1.331 0.000
z 0.000 0.000 4.170
Polar
3z2-r28.341
x2-y2-1.005
xy3.795
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.845 2.142 0.000
y 2.142 8.737 0.000
z 0.000 0.000 4.358


<r2> (average value of r2) Å2
<r2> 243.939
(<r2>)1/2 15.619