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 OCSe (Carbonyl selenide)

using model chemistry: B2PLYP=FULLultrafine/6-31G

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 B2PLYP=FULLultrafine/6-31G
 hartrees
Energy at 0K-2511.830491
Energy at 298.15K 
HF Energy-2511.721839
Nuclear repulsion energy133.018667
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 B2PLYP=FULLultrafine/6-31G
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 1939 1939 495.09 18.63 0.25 0.40
2 Σ 636 636 2.41 15.31 0.32 0.49
3 Π 467 467 2.17 1.88 0.75 0.86
3 Π 467 467 2.17 1.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1754.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1754.3 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 B2PLYP=FULLultrafine/6-31G
B
0.12951

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.027
O2 0.000 0.000 -2.218
Se3 0.000 0.000 0.703

Atom - Atom Distances (Å)
  C1 O2 Se3
C11.19111.7296
O21.19112.9208
Se31.72962.9208

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