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All results from a given calculation for SiN (Silicon nitride)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Σ
Energy calculated at G3B3
 hartrees
Energy at 0K-343.960269
Energy at 298.15K-343.956942
Nuclear repulsion energy 
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 B3LYP/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 Σ 1172 1125 16.07      

Unscaled Zero Point Vibrational Energy (zpe) 585.9 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 562.7 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 B3LYP/6-31G*
B
0.72588

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.526
N2 0.000 0.000 -1.052

Atom - Atom Distances (Å)
  Si1 N2
Si11.5775
N21.5775

picture of Silicon nitride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.359 0.334 1.231 0.429
2 N -0.359 -0.334 -1.231 -0.429


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 2.352 2.352
CHELPG 0.000 0.000 2.534 2.534
AIM 0.000 0.000 -2.739 2.739
ESP 0.000 0.000 3.253 3.253


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 22.779
(<r2>)1/2 4.773