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

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-16.911883
Energy at 298.15K-16.913954
Nuclear repulsion energy20.329694
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 HF/CEP-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 A' 3370 3037 27.35      
2 A' 3246 2926 66.59      
3 A' 2443 2202 167.97      
4 A' 1610 1451 8.93      
5 A' 1471 1326 19.23      
6 A' 1112 1002 43.90      
7 A' 765 689 6.52      
8 A' 600 541 1.35      
9 A" 3371 3039 34.20      
10 A" 1604 1446 11.02      
11 A" 1015 915 10.55      
12 A" 209 188 13.59      

Unscaled Zero Point Vibrational Energy (zpe) 10407.7 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 9381.5 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 HF/CEP-31G
ABC
3.15970 0.30105 0.29007

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.032 -0.428 0.000
C2 -0.032 1.566 0.000
H3 1.438 -0.579 0.000
H4 -1.075 1.863 0.000
H5 0.458 1.937 0.893
H6 0.458 1.937 -0.893

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.99391.47802.51792.57502.5750
C21.99392.60051.08511.08411.0841
H31.47802.60053.50502.84422.8442
H42.51791.08513.50501.77601.7760
H52.57501.08412.84421.77601.7862
H62.57501.08412.84421.77601.7862

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 105.916 Se1 C2 H5 110.017
Se1 C2 H6 110.017 C2 Se1 H3 95.866
H4 C2 H5 109.919 H4 C2 H6 109.919
H5 C2 H6 110.934
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.082      
2 C -0.532      
3 H -0.038      
4 H 0.161      
5 H 0.163      
6 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.988 1.715 0.000 1.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.037 -1.178 0.000
y -1.178 -21.210 0.000
z 0.000 0.000 -24.935
Traceless
 xyz
x 2.035 -1.178 0.000
y -1.178 1.776 0.000
z 0.000 0.000 -3.811
Polar
3z2-r2-7.622
x2-y20.173
xy-1.178
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.014 -0.396 0.000
y -0.396 6.106 0.000
z 0.000 0.000 2.317


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000