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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-2430.472759
Energy at 298.15K-2430.474737
Nuclear repulsion energy98.994767
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 B3PW91/3-21G
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' 3188 3064 4.10      
2 A' 3094 2974 16.65      
3 A' 2164 2080 71.64      
4 A' 1534 1474 15.00      
5 A' 1390 1336 3.72      
6 A' 1039 998 32.38      
7 A' 721 693 1.40      
8 A' 603 580 0.10      
9 A" 3193 3069 6.91      
10 A" 1529 1470 12.42      
11 A" 950 913 14.50      
12 A" 172 166 8.68      

Unscaled Zero Point Vibrational Energy (zpe) 9788.0 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 9408.2 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 B3PW91/3-21G
ABC
3.10958 0.30393 0.29246

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.032 -0.427 0.000
C2 -0.032 1.554 0.000
H3 1.460 -0.545 0.000
H4 -1.081 1.860 0.000
H5 0.455 1.939 0.897
H6 0.455 1.939 -0.897

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.98121.49712.51632.57722.5772
C21.98122.57571.09231.09111.0911
H31.49712.57573.49902.82662.8266
H42.51631.09233.49901.78001.7800
H52.57721.09112.82661.78001.7945
H62.57721.09112.82661.78001.7945

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 106.282 Se1 C2 H5 110.676
Se1 C2 H6 110.676 C2 Se1 H3 94.526
H4 C2 H5 109.222 H4 C2 H6 109.222
H5 C2 H6 110.647
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.140      
2 C -0.916      
3 H 0.014      
4 H 0.256      
5 H 0.253      
6 H 0.253      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.677 1.286 0.000 1.453
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.568 -0.982 0.000
y -0.982 -24.590 0.000
z 0.000 0.000 -27.965
Traceless
 xyz
x 1.709 -0.982 0.000
y -0.982 1.677 0.000
z 0.000 0.000 -3.385
Polar
3z2-r2-6.771
x2-y20.021
xy-0.982
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.360 -0.310 0.000
y -0.310 5.333 0.000
z 0.000 0.000 2.533


<r2> (average value of r2) Å2
<r2> 53.394
(<r2>)1/2 7.307