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

using model chemistry: CCSD(T)/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at CCSD(T)/6-31G(2df,p)
 hartrees
Energy at 0K-1145.590558
Energy at 298.15K 
HF Energy-1144.432075
Nuclear repulsion energy326.075627
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 CCSD(T)/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/6-31G(2df,p)
ABC
0.16394 0.05010 0.03837

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.172 0.755 0.000
C2 0.172 -0.755 0.000
O3 -1.277 1.190 0.000
O4 1.277 -1.190 0.000
Cl5 1.277 1.747 0.000
Cl6 -1.277 -1.747 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.54941.18772.42581.75562.7353
C21.54942.42581.18772.73531.7556
O31.18772.42583.49142.61422.9367
O42.42581.18773.49142.93672.6142
Cl51.75562.73532.61422.93674.3274
Cl62.73531.75562.93672.61424.3274

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 124.288 C1 C2 Cl6 111.559
C2 C1 O3 124.288 C2 C1 Cl5 111.559
O3 C1 Cl5 124.154 O4 C2 Cl6 124.154
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability