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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-2439.850633
Energy at 298.15K-2439.852615
Nuclear repulsion energy100.008031
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' 3196 3057 5.14      
2 A' 3095 2961 17.86      
3 A' 2387 2284 30.51      
4 A' 1511 1446 8.26      
5 A' 1342 1284 9.76      
6 A' 1023 979 19.74      
7 A' 739 707 0.19      
8 A' 587 561 0.16      
9 A" 3205 3066 4.80      
10 A" 1503 1438 4.90      
11 A" 918 879 9.52      
12 A" 194 185 5.79      

Unscaled Zero Point Vibrational Energy (zpe) 9849.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9423.4 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
3.12757 0.31125 0.29949

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 -0.032 -0.421 0.000
C2 -0.032 1.535 0.000
H3 1.448 -0.550 0.000
H4 -1.081 1.838 0.000
H5 0.454 1.914 0.900
H6 0.454 1.914 -0.900

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.95691.48502.49082.54982.5498
C21.95692.55661.09191.09031.0903
H31.48502.55663.47752.80522.8052
H42.49081.09193.47751.78061.7806
H52.54981.09032.80521.78061.7994
H62.54981.09032.80521.78061.7994

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 106.067 Se1 C2 H5 110.343
Se1 C2 H6 110.343 C2 Se1 H3 94.948
H4 C2 H5 109.367 H4 C2 H6 109.367
H5 C2 H6 111.214
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 -0.160      
2 C -0.593      
3 H 0.131      
4 H 0.206      
5 H 0.208      
6 H 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.564 1.394 0.000 1.504
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.969 -0.888 0.000
y -0.888 -24.105 0.000
z 0.000 0.000 -27.925
Traceless
 xyz
x 2.046 -0.888 0.000
y -0.888 1.842 0.000
z 0.000 0.000 -3.888
Polar
3z2-r2-7.775
x2-y20.136
xy-0.888
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.696 -0.245 0.000
y -0.245 5.800 0.000
z 0.000 0.000 3.868


<r2> (average value of r2) Å2
<r2> 52.352
(<r2>)1/2 7.235