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All results from a given calculation for SiH3 (Silyl radical)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-290.625899
Energy at 298.15K 
HF Energy-290.625899
Nuclear repulsion energy15.597057
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2282 2078 17.10 290.10 0.05 0.10
2 A1 860 783 103.31 16.13 0.19 0.31
3 E 2301 2095 161.09 77.38 0.75 0.86
3 E 2301 2095 161.09 77.38 0.75 0.86
4 E 998 908 75.51 5.71 0.75 0.86
4 E 998 908 75.51 5.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4869.0 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 4433.7 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/aug-cc-pVDZ
ABC
4.68398 4.68398 2.78915

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.081
H2 0.000 1.414 -0.379
H3 1.224 -0.707 -0.379
H4 -1.224 -0.707 -0.379

Atom - Atom Distances (Å)
  Si1 H2 H3 H4
Si11.48681.48681.4868
H21.48682.44892.4489
H31.48682.44892.4489
H41.48682.44892.4489

picture of Silyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 Si1 H3 110.886 H2 Si1 H4 110.886
H3 Si1 H4 110.886
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.199      
2 H -0.066      
3 H -0.066      
4 H -0.066      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.024 0.024
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.215 0.000 0.000
y 0.000 -16.215 0.000
z 0.000 0.000 -16.528
Traceless
 xyz
x 0.156 0.000 0.000
y 0.000 0.156 0.000
z 0.000 0.000 -0.313
Polar
3z2-r2-0.626
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.968 0.000 0.000
y 0.000 4.968 0.000
z 0.000 0.000 4.749


<r2> (average value of r2) Å2
<r2> 16.712
(<r2>)1/2 4.088