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

using model chemistry: CCD/aug-cc-pVTZ

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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-150.994424
Energy at 298.15K-150.992930
HF Energy-150.521115
Nuclear repulsion energy46.104699
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 CCD/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2115 2024 353.76      
2 Σ 1110 1063 9.66      
3 Π 447 428 35.50      
3 Π 447 428 35.50      

Unscaled Zero Point Vibrational Energy (zpe) 2059.5 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 1970.9 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 CCD/aug-cc-pVTZ
B
0.38779

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.416
C2 0.000 0.000 -0.051
O3 0.000 0.000 1.100

Atom - Atom Distances (Å)
  C1 C2 O3
C11.36512.5167
C21.36511.1516
O32.51671.1516

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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-150.962012
Energy at 298.15K-150.960485
HF Energy-150.459951
Nuclear repulsion energy45.894792
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 CCD/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2072 1983 149.96      
2 Σ 1125 1076 29.56      
3 Π 490 469 2.18      
3 Π 373 357 52.80      

Unscaled Zero Point Vibrational Energy (zpe) 2029.9 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 1942.6 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 CCD/aug-cc-pVTZ
B
0.38529

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.418
C2 0.000 0.000 -0.057
O3 0.000 0.000 1.106

Atom - Atom Distances (Å)
  C1 C2 O3
C11.36182.5246
C21.36181.1628
O32.52461.1628

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