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All results from a given calculation for OCSe (Carbonyl selenide)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at CBS-Q
 hartrees
Energy at 0K-2513.460646
Energy at 298.15K-2513.456762
HF Energy-2510.309633
Nuclear repulsion energy136.314069
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 CBS-Q
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 2326 2326 1190.16 44.34 0.44 0.61
2 Σ 684 684 22.70 6.10 0.14 0.25
3 Π 556 556 10.55 0.65 0.75 0.86
3 Π 556 556 10.55 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 2060.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2060.8 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 CBS-Q
B
0.13368

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.028
O2 0.000 0.000 -2.150
Se3 0.000 0.000 0.687

Atom - Atom Distances (Å)
  C1 O2 Se3
C11.12231.7149
O21.12232.8372
Se31.71492.8372

picture of Carbonyl selenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 Se3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability