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

using model chemistry: QCISD(T)/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-1145.412808
Energy at 298.15K-1145.413283
HF Energy-1144.461263
Nuclear repulsion energy323.451616
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-pVDZ
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 1829 1743        
2 Ag 1093 1042        
3 Ag 614 585        
4 Ag 426 406        
5 Ag 289 276        
6 Au 388 370        
7 Au 34 32        
8 Bg 721 687        
9 Bu 1844 1757        
10 Bu 768 732        
11 Bu 489 466        
12 Bu 206 196        

Unscaled Zero Point Vibrational Energy (zpe) 4349.6 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 4145.6 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-pVDZ
ABC
0.16153 0.04924 0.03773

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.174 0.761 0.000
C2 0.174 -0.761 0.000
O3 -1.286 1.200 0.000
O4 1.286 -1.200 0.000
Cl5 1.286 1.763 0.000
Cl6 -1.286 -1.763 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.56161.19542.44551.77102.7583
C21.56162.44551.19542.75831.7710
O31.19542.44553.51852.63292.9637
O42.44551.19543.51852.96372.6329
Cl51.77102.75832.63292.96374.3648
Cl62.75831.77102.96372.63294.3648

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 124.460 C1 C2 Cl6 111.565
C2 C1 O3 124.460 C2 C1 Cl5 111.565
O3 C1 Cl5 123.975 O4 C2 Cl6 123.975
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability