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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-2439.859605
Energy at 298.15K-2439.861567
Nuclear repulsion energy100.287631
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 B3PW91/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3194 3061 4.70      
2 A' 3088 2960 17.29      
3 A' 2461 2358 26.15      
4 A' 1492 1430 7.79      
5 A' 1328 1273 9.86      
6 A' 1025 982 19.36      
7 A' 752 720 0.20      
8 A' 588 564 0.16      
9 A" 3202 3069 4.39      
10 A" 1484 1422 4.48      
11 A" 917 879 9.11      
12 A" 173 166 6.32      

Unscaled Zero Point Vibrational Energy (zpe) 9851.8 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 9442.0 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 B3PW91/6-31G**
ABC
3.17564 0.31161 0.30025

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.031 -0.421 0.000
C2 -0.031 1.535 0.000
H3 1.422 -0.553 0.000
H4 -1.080 1.835 0.000
H5 0.453 1.913 0.899
H6 0.453 1.913 -0.899

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.95581.45902.48822.54822.5482
C21.95582.54341.09091.08951.0895
H31.45902.54343.45862.79812.7981
H42.48821.09093.45861.77911.7791
H52.54821.08952.79811.77911.7987
H62.54821.08952.79811.77911.7987

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 106.002 Se1 C2 H5 110.342
Se1 C2 H6 110.342 C2 Se1 H3 95.177
H4 C2 H5 109.364 H4 C2 H6 109.364
H5 C2 H6 111.281
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se -0.140      
2 C -0.469      
3 H 0.103      
4 H 0.167      
5 H 0.169      
6 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.582 1.389 0.000 1.506
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.988 -0.914 0.000
y -0.914 -24.042 0.000
z 0.000 0.000 -27.863
Traceless
 xyz
x 1.965 -0.914 0.000
y -0.914 1.884 0.000
z 0.000 0.000 -3.849
Polar
3z2-r2-7.697
x2-y20.054
xy-0.914
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.656 -0.237 0.000
y -0.237 5.849 0.000
z 0.000 0.000 3.908


<r2> (average value of r2) Å2
<r2> 52.213
(<r2>)1/2 7.226