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

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
2 1 yes C*V 1Σ

State 1 (3Σ)

Jump to S2C1
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-327.328532
Energy at 298.15K-327.326802
HF Energy-327.328532
Nuclear repulsion energy25.939983
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 wB97X-D/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 Σ 1009 961 20.17      

Unscaled Zero Point Vibrational Energy (zpe) 504.4 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 480.5 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 wB97X-D/cc-pVDZ
B
0.68360

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.493
C2 0.000 0.000 -1.151

Atom - Atom Distances (Å)
  Si1 C2
Si11.6437
C21.6437

picture of silicon monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.301      
2 C -0.301      


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 1.486 1.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.118 0.000 0.000
y 0.000 -20.680 0.000
z 0.000 0.000 -20.322
Traceless
 xyz
x 3.383 0.000 0.000
y 0.000 -1.960 0.000
z 0.000 0.000 -1.423
Polar
3z2-r2-2.846
x2-y23.562
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.675 0.000 0.000
y 0.000 6.808 0.000
z 0.000 0.000 8.854


<r2> (average value of r2) Å2
<r2> 24.433
(<r2>)1/2 4.943

State 2 (1Σ)

Jump to S1C1
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-327.279296
Energy at 298.15K-327.277584
HF Energy-327.279296
Nuclear repulsion energy27.092869
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 wB97X-D/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 Σ 1140 1086 16.66      

Unscaled Zero Point Vibrational Energy (zpe) 569.7 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 542.7 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 wB97X-D/cc-pVDZ
B
0.74572

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.492
C2 0.000 0.000 -1.147

Atom - Atom Distances (Å)
  Si1 C2
Si11.6390
C21.6390

picture of silicon monocarbide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.345      
2 C -0.345      


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 2.134 2.134
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.007 0.000 0.000
y 0.000 -20.007 0.000
z 0.000 0.000 -15.626
Traceless
 xyz
x -2.191 0.000 0.000
y 0.000 -2.191 0.000
z 0.000 0.000 4.381
Polar
3z2-r28.762
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 3.675 0.000 0.000
y 0.000 6.808 0.000
z 0.000 0.000 8.854


<r2> (average value of r2) Å2
<r2> 22.890
(<r2>)1/2 4.784