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

using model chemistry: CCSD(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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-1145.778645
Energy at 298.15K-1145.779109
HF Energy-1144.559887
Nuclear repulsion energy325.864859
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)/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 1819 1773        
2 Ag 1096 1068        
3 Ag 618 602        
4 Ag 432 421        
5 Ag 287 280        
6 Au 387 377        
7 Au 20 19        
8 Bg 722 704        
9 Bu 1839 1792        
10 Bu 778 758        
11 Bu 495 483        
12 Bu 204 199        

Unscaled Zero Point Vibrational Energy (zpe) 4347.4 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 4237.9 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 CCSD(T)/cc-pVTZ
ABC
0.16407 0.04995 0.03829

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.170 0.757 0.000
C2 0.170 -0.757 0.000
O3 -1.276 1.193 0.000
O4 1.276 -1.193 0.000
Cl5 1.276 1.751 0.000
Cl6 -1.276 -1.751 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.55221.18852.42751.75422.7411
C21.55222.42751.18852.74111.7542
O31.18852.42753.49302.61182.9436
O42.42751.18853.49302.94362.6118
Cl51.75422.74112.61182.94364.3327
Cl62.74111.75422.94362.61184.3327

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 124.146 C1 C2 Cl6 111.853
C2 C1 O3 124.146 C2 C1 Cl5 111.853
O3 C1 Cl5 124.001 O4 C2 Cl6 124.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability