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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-2439.622631
Energy at 298.15K-2439.624605
Nuclear repulsion energy98.962403
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' 3222 3085 4.86      
2 A' 3105 2973 18.85      
3 A' 2281 2184 77.64      
4 A' 1521 1457 13.08      
5 A' 1367 1309 4.36      
6 A' 1049 1005 31.46      
7 A' 764 732 0.96      
8 A' 564 540 0.48      
9 A" 3229 3092 7.24      
10 A" 1520 1456 11.82      
11 A" 923 884 13.94      
12 A" 181 174 10.07      

Unscaled Zero Point Vibrational Energy (zpe) 9862.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9445.3 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
3.13159 0.30234 0.29131

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 -0.428 0.000
C2 -0.032 1.562 0.000
H3 1.442 -0.538 0.000
H4 -1.079 1.864 0.000
H5 0.457 1.929 0.901
H6 0.457 1.929 -0.901

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.98971.47822.52032.57042.5704
C21.98972.56511.09041.08901.0890
H31.47822.56513.48252.80472.8047
H42.52031.09043.48251.78251.7825
H52.57041.08902.80471.78251.8017
H62.57041.08902.80471.78251.8017

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 106.112 Se1 C2 H5 109.722
Se1 C2 H6 109.722 C2 Se1 H3 94.249
H4 C2 H5 109.749 H4 C2 H6 109.749
H5 C2 H6 111.635
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 0.078      
2 C -0.751      
3 H 0.027      
4 H 0.217      
5 H 0.214      
6 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.787 1.478 0.000 1.674
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.587 -1.071 0.000
y -1.071 -24.626 0.000
z 0.000 0.000 -28.138
Traceless
 xyz
x 1.795 -1.071 0.000
y -1.071 1.737 0.000
z 0.000 0.000 -3.532
Polar
3z2-r2-7.064
x2-y20.038
xy-1.071
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.486 -0.293 0.000
y -0.293 5.597 0.000
z 0.000 0.000 2.687


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000