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

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-16.917221
Energy at 298.15K-16.919292
Nuclear repulsion energy20.367137
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-121G
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' 3317 3026 15.74      
2 A' 3190 2911 46.61      
3 A' 2475 2258 101.04      
4 A' 1608 1467 8.36      
5 A' 1466 1338 18.13      
6 A' 1110 1013 40.44      
7 A' 767 700 4.66      
8 A' 605 552 0.60      
9 A" 3321 3030 21.87      
10 A" 1602 1462 10.28      
11 A" 1019 929 12.59      
12 A" 194 177 9.51      

Unscaled Zero Point Vibrational Energy (zpe) 10336.3 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 9431.9 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 HF/CEP-121G
ABC
3.17734 0.30153 0.29054

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.032 -0.428 0.000
C2 -0.032 1.565 0.000
H3 1.437 -0.578 0.000
H4 -1.071 1.864 0.000
H5 0.456 1.935 0.890
H6 0.456 1.935 -0.890

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.99251.47642.51632.57142.5714
C21.99252.59781.08131.08021.0802
H31.47642.59783.50042.84032.8403
H42.51631.08133.50041.76891.7689
H52.57141.08022.84031.76891.7790
H62.57141.08022.84031.76891.7790

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 106.070 Se1 C2 H5 110.045
Se1 C2 H6 110.045 C2 Se1 H3 95.842
H4 C2 H5 109.849 H4 C2 H6 109.849
H5 C2 H6 110.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.200      
2 C -0.688      
3 H -0.054      
4 H 0.184      
5 H 0.179      
6 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.830 1.632 0.000 1.831
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.244 -1.112 0.000
y -1.112 -21.163 0.000
z 0.000 0.000 -24.932
Traceless
 xyz
x 1.804 -1.112 0.000
y -1.112 1.924 0.000
z 0.000 0.000 -3.728
Polar
3z2-r2-7.456
x2-y2-0.080
xy-1.112
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.629 -0.423 0.000
y -0.423 6.156 0.000
z 0.000 0.000 2.440


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