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All results from a given calculation for CCO (Dicarbon monoxide)

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
2 1 yes C*V 1Π

State 1 (3Σ)

Jump to S2C1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-150.656968
Energy at 298.15K-150.655192
HF Energy-150.397172
Nuclear repulsion energy44.198301
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/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 1824 1761 656.20      
2 Σ 960 927 36.97      
3 Π 325 314 58.39      
3 Π 325 314 58.39      

Unscaled Zero Point Vibrational Energy (zpe) 1716.9 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 1657.4 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/SDD
B
0.35647

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.477
C2 0.000 0.000 -0.054
O3 0.000 0.000 1.148

Atom - Atom Distances (Å)
  C1 C2 O3
C11.42312.6249
C21.42311.2018
O32.62491.2018

picture of Dicarbon monoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1Π)

Jump to S1C1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-150.629963
Energy at 298.15K-150.628253
HF Energy-150.338600
Nuclear repulsion energy43.773510
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/SDD
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 1779 1717 31.93      
2 Σ 972 939 37.36      
3 Π 411 397 0.00      
3 Π 303 292 45.13      

Unscaled Zero Point Vibrational Energy (zpe) 1732.2 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 1672.1 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/SDD
B
0.35181

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.480
C2 0.000 0.000 -0.068
O3 0.000 0.000 1.161

Atom - Atom Distances (Å)
  C1 C2 O3
C11.41292.6415
C21.41291.2286
O32.64151.2286

picture of Dicarbon monoxide state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability