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All results from a given calculation for SiC (silicon monocarbide)

using model chemistry: B3PW91/cc-pCVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
Energy calculated at B3PW91/cc-pCVTZ
 hartrees
Energy at 0K-327.345053
Energy at 298.15K-327.343319
HF Energy-327.345053
Nuclear repulsion energy25.941194
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 B3PW91/cc-pCVTZ
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 987 987 16.77      

Unscaled Zero Point Vibrational Energy (zpe) 493.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 493.7 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 B3PW91/cc-pCVTZ
B
0.68367

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pCVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.514
C2 0.000 0.000 -1.199

Atom - Atom Distances (Å)
  Si1 C2
Si11.7135
C21.7135

picture of silicon monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.204      
2 C -0.204      


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 1.563 1.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.124 0.000 0.000
y 0.000 -20.382 0.000
z 0.000 0.000 -19.604
Traceless
 xyz
x 2.869 0.000 0.000
y 0.000 -2.017 0.000
z 0.000 0.000 -0.852
Polar
3z2-r2-1.703
x2-y23.258
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.268 0.000 0.000
y 0.000 6.575 0.000
z 0.000 0.000 8.252


<r2> (average value of r2) Å2
<r2> 24.222
(<r2>)1/2 4.922