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

using model chemistry: QCISD(T)/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 QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-1145.780790
Energy at 298.15K-1145.781246
HF Energy-1144.559616
Nuclear repulsion energy325.649525
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(T)/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 1816 1722        
2 Ag 1092 1036        
3 Ag 616 584        
4 Ag 429 407        
5 Ag 286 271        
6 Au 386 366        
7 Au 21 20        
8 Bg 720 683        
9 Bu 1834 1740        
10 Bu 774 734        
11 Bu 493 467        
12 Bu 204 194        

Unscaled Zero Point Vibrational Energy (zpe) 4334.7 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 4111.9 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 QCISD(T)/cc-pVTZ
ABC
0.16384 0.04989 0.03824

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.171 0.757 0.000
C2 0.171 -0.757 0.000
O3 -1.277 1.193 0.000
O4 1.277 -1.193 0.000
Cl5 1.277 1.752 0.000
Cl6 -1.277 -1.752 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.55201.18912.42851.75632.7419
C21.55202.42851.18912.74191.7563
O31.18912.42853.49502.61412.9449
O42.42851.18913.49502.94492.6141
Cl51.75632.74192.61412.94494.3355
Cl62.74191.75632.94492.61414.3355

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 124.206 C1 C2 Cl6 111.804
C2 C1 O3 124.206 C2 C1 Cl5 111.804
O3 C1 Cl5 123.990 O4 C2 Cl6 123.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability