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All results from a given calculation for CH3SeH (Methane selenol)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-2428.876771
Energy at 298.15K-2428.878834
HF Energy-2428.656654
Nuclear repulsion energy99.266378
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3200 3044 4.72      
2 A' 3111 2959 14.08      
3 A' 2495 2374 18.62      
4 A' 1586 1509 7.62      
5 A' 1414 1345 9.81      
6 A' 1055 1004 18.02      
7 A' 755 718 0.70      
8 A' 615 585 0.51      
9 A" 3211 3055 5.40      
10 A" 1577 1501 5.45      
11 A" 969 922 9.07      
12 A" 212 201 7.62      

Unscaled Zero Point Vibrational Energy (zpe) 10099.8 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 9607.9 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 MP2/3-21G*
ABC
3.13240 0.30482 0.29355

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.032 -0.426 0.000
C2 -0.032 1.554 0.000
H3 1.441 -0.535 0.000
H4 -1.081 1.858 0.000
H5 0.460 1.927 0.899
H6 0.460 1.927 -0.899

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.98021.47662.51402.56652.5665
C21.98022.55541.09251.09061.0906
H31.47662.55543.47642.79782.7978
H42.51401.09253.47641.78561.7856
H52.56651.09062.79781.78561.7983
H62.56651.09062.79781.78561.7983

picture of Methane selenol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 106.175 Se1 C2 H5 109.986
Se1 C2 H6 109.986 C2 Se1 H3 94.204
H4 C2 H5 109.753 H4 C2 H6 109.753
H5 C2 H6 111.069
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability