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

using model chemistry: B3LYPultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B3LYPultrafine/Def2TZVPP
 hartrees
Energy at 0K-291.263235
Energy at 298.15K 
HF Energy-291.263235
Nuclear repulsion energy15.645843
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 B3LYPultrafine/Def2TZVPP
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 2191 2191 5.45 263.66 0.07 0.13
2 A1 767 767 61.63 0.03 0.06 0.11
3 E 2231 2231 115.32 79.45 0.75 0.86
3 E 2231 2231 115.34 79.45 0.75 0.86
4 E 937 937 60.45 15.86 0.75 0.86
4 E 937 937 60.46 15.86 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4646.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4646.5 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 B3LYPultrafine/Def2TZVPP
ABC
4.71969 4.71969 2.80157

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.080
H2 0.000 1.411 -0.374
H3 1.222 -0.705 -0.374
H4 -1.222 -0.705 -0.374

Atom - Atom Distances (Å)
  Si1 H2 H3 H4
Si11.48211.48211.4821
H21.48212.44352.4435
H31.48212.44352.4435
H41.48212.44352.4435

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 111.042 H2 Si1 H4 111.042
H3 Si1 H4 111.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.117      
2 H -0.039      
3 H -0.039      
4 H -0.039      


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 0.082 0.082
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.978 0.000 0.000
y 0.000 -15.978 0.000
z 0.000 0.000 -16.289
Traceless
 xyz
x 0.155 0.000 0.000
y 0.000 0.155 0.000
z 0.000 0.000 -0.311
Polar
3z2-r2-0.622
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 4.722 0.000 0.000
y 0.000 4.722 0.000
z 0.000 0.000 3.845


<r2> (average value of r2) Å2
<r2> 16.525
(<r2>)1/2 4.065