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

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-1139.690748
Energy at 298.15K-1139.691245
HF Energy-1138.952992
Nuclear repulsion energy321.826326
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 QCISD/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 1725 1658 0.00      
2 Ag 994 955 0.00      
3 Ag 599 576 0.00      
4 Ag 412 396 0.00      
5 Ag 292 280 0.00      
6 Au 416 400 17.69      
7 Au 64 62 0.07      
8 Bg 742 714 0.00      
9 Bu 1744 1676 230.48      
10 Bu 734 705 449.25      
11 Bu 472 454 12.73      
12 Bu 212 204 6.93      

Unscaled Zero Point Vibrational Energy (zpe) 4202.8 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 4039.3 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 QCISD/3-21G*
ABC
0.15772 0.04932 0.03757

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.175 0.756 0.000
C2 0.175 -0.756 0.000
O3 -1.305 1.205 0.000
O4 1.305 -1.205 0.000
Cl5 1.305 1.750 0.000
Cl6 -1.305 -1.750 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.55261.21552.45681.78262.7493
C21.55262.45681.21552.74931.7826
O31.21552.45683.55192.66612.9549
O42.45681.21553.55192.95492.6661
Cl51.78262.74932.66612.95494.3660
Cl62.74931.78262.95492.66614.3660

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 124.682 C1 C2 Cl6 110.850
C2 C1 O3 124.682 C2 C1 Cl5 110.850
O3 C1 Cl5 124.468 O4 C2 Cl6 124.468
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability