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

using model chemistry: HF/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/cc-pVQZ
 hartrees
Energy at 0K-2440.100654
Energy at 298.15K-2440.102750
Nuclear repulsion energy100.666250
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 HF/cc-pVQZ
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' 3285 2984 8.63      
2 A' 3199 2906 27.74      
3 A' 2571 2335 24.66      
4 A' 1601 1455 6.36      
5 A' 1443 1311 14.69      
6 A' 1095 995 17.80      
7 A' 766 696 1.00      
8 A' 635 577 0.46      
9 A" 3296 2994 6.65      
10 A" 1588 1442 4.22      
11 A" 998 907 5.37      
12 A" 209 190 5.00      

Unscaled Zero Point Vibrational Energy (zpe) 10342.4 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 9395.0 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 HF/cc-pVQZ
ABC
3.24013 0.31328 0.30185

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 -0.031 -0.419 0.000
C2 -0.031 1.532 0.000
H3 1.412 -0.590 0.000
H4 -1.067 1.834 0.000
H5 0.452 1.907 0.886
H6 0.452 1.907 -0.886

Atom - Atom Distances (Å)
  Se1 C2 H3 H4 H5 H6
Se11.95081.45352.47962.53592.5359
C21.95082.56601.07891.07701.0770
H31.45352.56603.46702.81822.8182
H42.47961.07893.46701.76021.7602
H52.53591.07702.81821.76021.7724
H62.53591.07702.81821.76021.7724

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 106.259 Se1 C2 H5 110.407
Se1 C2 H6 110.407 C2 Se1 H3 96.745
H4 C2 H5 109.461 H4 C2 H6 109.461
H5 C2 H6 110.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se -0.065      
2 C -0.258      
3 H 0.039      
4 H 0.085      
5 H 0.099      
6 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.570 1.493 0.000 1.598
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.681 -1.011 0.000
y -1.011 -24.769 0.000
z 0.000 0.000 -28.546
Traceless
 xyz
x 1.977 -1.011 0.000
y -1.011 1.845 0.000
z 0.000 0.000 -3.822
Polar
3z2-r2-7.643
x2-y20.088
xy-1.011
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.446 -0.224 0.000
y -0.224 7.040 0.000
z 0.000 0.000 4.988


<r2> (average value of r2) Å2
<r2> 52.424
(<r2>)1/2 7.240