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All results from a given calculation for SiO (Silicon monoxide)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-361.942122
Energy at 298.15K 
HF Energy-361.942122
Nuclear repulsion energy39.623363
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/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 Σ 1441 1301 50.44 14.85 0.40 0.57

Unscaled Zero Point Vibrational Energy (zpe) 720.7 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 650.5 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 HF/3-21G*
B
0.74038

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.544
O2 0.000 0.000 -0.952

Atom - Atom Distances (Å)
  Si1 O2
Si11.4958
O21.4958

picture of Silicon monoxide state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.527      
2 O -0.527      


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 2.888 2.888
CHELPG 0.000 0.000 3.282 3.282
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.917 0.000 0.000
y 0.000 -15.917 0.000
z 0.000 0.000 -21.224
Traceless
 xyz
x 2.654 0.000 0.000
y 0.000 2.654 0.000
z 0.000 0.000 -5.307
Polar
3z2-r2-10.615
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 2.872 0.000 0.000
y 0.000 2.872 0.000
z 0.000 0.000 3.387


<r2> (average value of r2) Å2
<r2> 22.436
(<r2>)1/2 4.737