return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-1131.885992
Energy at 298.15K-1131.885977
HF Energy-1131.596081
Nuclear repulsion energy311.562328
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 MP2=FULL/STO-3G
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 1788 1589 0.00      
2 Ag 1092 971 0.00      
3 Ag 619 550 0.00      
4 Ag 414 368 0.00      
5 Ag 263 234 0.00      
6 Au 346 308 15.37      
7 Au 44 39 1.29      
8 Bg 655 582 0.00      
9 Bu 1790 1592 142.08      
10 Bu 786 699 402.68      
11 Bu 471 419 13.88      
12 Bu 164 145 4.72      

Unscaled Zero Point Vibrational Energy (zpe) 4216.6 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 3748.1 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 MP2=FULL/STO-3G
ABC
0.14731 0.04624 0.03520

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.199 0.777 0.000
C2 0.199 -0.777 0.000
O3 -1.346 1.249 0.000
O4 1.346 -1.249 0.000
Cl5 1.346 1.809 0.000
Cl6 -1.346 -1.809 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 Cl5 Cl6
C11.60431.24032.54781.85812.8295
C21.60432.54781.24032.82951.8581
O31.24032.54783.67222.74993.0581
O42.54781.24033.67223.05812.7499
Cl51.85812.82952.74993.05814.5103
Cl62.82951.85813.05812.74994.5103

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 126.709 C1 C2 Cl6 109.388
C2 C1 O3 126.709 C2 C1 Cl5 109.388
O3 C1 Cl5 123.902 O4 C2 Cl6 123.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability