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 CCl2O (Phosgene)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-1032.380112
Energy at 298.15K-1032.380646
HF Energy-1031.766233
Nuclear repulsion energy190.657742
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/TZVP
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 1830 1735 316.69      
2 A1 575 545 25.22      
3 A1 311 295 0.02      
4 B1 584 554 5.53      
5 B2 856 812 510.98      
6 B2 452 428 1.57      

Unscaled Zero Point Vibrational Energy (zpe) 2304.6 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 2184.5 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/TZVP
ABC
0.26194 0.11356 0.07922

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.680
C2 0.000 0.000 0.496
Cl3 0.000 1.457 -0.483
Cl4 0.000 -1.457 -0.483

Atom - Atom Distances (Å)
  O1 C2 Cl3 Cl4
O11.18392.60732.6073
C21.18391.75501.7550
Cl32.60731.75502.9138
Cl42.60731.75502.9138

picture of Phosgene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 Cl3 123.885 O1 C2 Cl4 123.885
Cl3 C2 Cl4 112.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability