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

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-2430.503330
Energy at 298.15K-2430.505318
Nuclear repulsion energy98.611121
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 B3LYP/3-21G
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' 3178 3067 5.70      
2 A' 3091 2983 18.40      
3 A' 2152 2076 76.58      
4 A' 1542 1488 12.71      
5 A' 1390 1341 6.83      
6 A' 1036 1000 30.06      
7 A' 716 691 1.55      
8 A' 589 568 0.18      
9 A" 3184 3072 8.86      
10 A" 1536 1482 10.22      
11 A" 946 913 12.54      
12 A" 187 180 7.18      

Unscaled Zero Point Vibrational Energy (zpe) 9773.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 9430.0 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 B3LYP/3-21G
ABC
3.10961 0.30086 0.28959

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.032 -0.429 0.000
C2 -0.032 1.563 0.000
H3 1.461 -0.548 0.000
H4 -1.080 1.868 0.000
H5 0.455 1.946 0.896
H6 0.455 1.946 -0.896

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.99261.49822.52462.58532.5853
C21.99262.58611.09111.08981.0898
H31.49822.58613.50612.83482.8348
H42.52461.09113.50611.77951.7795
H52.58531.08982.83481.77951.7929
H62.58531.08982.83481.77951.7929

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 106.193 Se1 C2 H5 110.566
Se1 C2 H6 110.566 C2 Se1 H3 94.542
H4 C2 H5 109.360 H4 C2 H6 109.360
H5 C2 H6 110.684
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.146      
2 C -0.839      
3 H 0.000      
4 H 0.232      
5 H 0.230      
6 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.619 1.232 0.000 1.379
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.668 -0.926 0.000
y -0.926 -24.657 0.000
z 0.000 0.000 -27.969
Traceless
 xyz
x 1.645 -0.926 0.000
y -0.926 1.661 0.000
z 0.000 0.000 -3.307
Polar
3z2-r2-6.614
x2-y2-0.011
xy-0.926
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.340 -0.314 0.000
y -0.314 5.376 0.000
z 0.000 0.000 2.518


<r2> (average value of r2) Å2
<r2> 53.748
(<r2>)1/2 7.331