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

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-2440.024755
Energy at 298.15K-2440.026729
Nuclear repulsion energy100.533025
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 mPW1PW91/6-31G**
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' 3213 3057 4.18      
2 A' 3106 2955 16.94      
3 A' 2492 2371 24.83      
4 A' 1500 1428 8.00      
5 A' 1337 1272 9.31      
6 A' 1032 982 19.81      
7 A' 757 720 0.24      
8 A' 597 568 0.15      
9 A" 3222 3065 3.85      
10 A" 1492 1419 4.68      
11 A" 923 879 9.08      
12 A" 174 166 6.58      

Unscaled Zero Point Vibrational Energy (zpe) 9922.2 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 9440.9 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 mPW1PW91/6-31G**
ABC
3.18693 0.31326 0.30183

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.031 -0.420 0.000
C2 -0.031 1.530 0.000
H3 1.419 -0.552 0.000
H4 -1.078 1.831 0.000
H5 0.453 1.909 0.898
H6 0.453 1.909 -0.898

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.95041.45602.48292.54232.5423
C21.95042.53781.08931.08791.0879
H31.45602.53783.45212.79252.7925
H42.48291.08933.45211.77631.7763
H52.54231.08792.79251.77631.7961
H62.54231.08792.79251.77631.7961

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 106.041 Se1 C2 H5 110.353
Se1 C2 H6 110.353 C2 Se1 H3 95.221
H4 C2 H5 109.340 H4 C2 H6 109.340
H5 C2 H6 111.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se -0.142      
2 C -0.478      
3 H 0.106      
4 H 0.170      
5 H 0.172      
6 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.594 1.397 0.000 1.518
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.977 -0.930 0.000
y -0.930 -24.050 0.000
z 0.000 0.000 -27.868
Traceless
 xyz
x 1.983 -0.930 0.000
y -0.930 1.872 0.000
z 0.000 0.000 -3.855
Polar
3z2-r2-7.710
x2-y20.074
xy-0.930
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.630 -0.238 0.000
y -0.238 5.814 0.000
z 0.000 0.000 3.896


<r2> (average value of r2) Å2
<r2> 52.033
(<r2>)1/2 7.213