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All results from a given calculation for CCl2O (Phosgene)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-1027.361659
Energy at 298.15K-1027.362062
HF Energy-1026.866841
Nuclear repulsion energy188.256154
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1697 1615 194.23      
2 A1 520 494 28.79      
3 A1 308 293 0.14      
4 B1 579 551 8.43      
5 B2 735 699 524.69      
6 B2 416 396 12.49      

Unscaled Zero Point Vibrational Energy (zpe) 2127.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 2024.2 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 MP2/3-21G*
ABC
0.24588 0.11363 0.07772

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.731
C2 0.000 0.000 0.520
Cl3 0.000 1.456 -0.499
Cl4 0.000 -1.456 -0.499

Atom - Atom Distances (Å)
  O1 C2 Cl3 Cl4
O11.21142.66332.6633
C21.21141.77721.7772
Cl32.66331.77722.9129
Cl42.66331.77722.9129

picture of Phosgene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 Cl3 124.964 O1 C2 Cl4 124.964
Cl3 C2 Cl4 110.072
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability