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

using model chemistry: M06-2X/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 M06-2X/cc-pVDZ
 hartrees
Energy at 0K-327.338727
Energy at 298.15K-327.336990
HF Energy-327.338727
Nuclear repulsion energy25.815229
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 M06-2X/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 972 972 38.37      

Unscaled Zero Point Vibrational Energy (zpe) 486.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 486.2 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 M06-2X/cc-pVDZ
B
0.67704

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.517
C2 0.000 0.000 -1.205

Atom - Atom Distances (Å)
  Si1 C2
Si11.7219
C21.7219

picture of silicon monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.211      
2 C -0.211      


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 1.443 1.443
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.145 0.000 0.000
y 0.000 -20.490 0.000
z 0.000 0.000 -19.450
Traceless
 xyz
x 2.825 0.000 0.000
y 0.000 -2.193 0.000
z 0.000 0.000 -0.633
Polar
3z2-r2-1.265
x2-y23.345
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.597 0.000 0.000
y 0.000 5.839 0.000
z 0.000 0.000 8.103


<r2> (average value of r2) Å2
<r2> 24.338
(<r2>)1/2 4.933

State 2 (1Σ)

Jump to S1C1
Energy calculated at M06-2X/cc-pVDZ
 hartrees
Energy at 0K-327.292511
Energy at 298.15K-327.290791
HF Energy-327.292511
Nuclear repulsion energy26.872258
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 M06-2X/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 1075 1075 12.43      

Unscaled Zero Point Vibrational Energy (zpe) 537.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 537.6 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 M06-2X/cc-pVDZ
B
0.73362

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.496
C2 0.000 0.000 -1.158

Atom - Atom Distances (Å)
  Si1 C2
Si11.6542
C21.6542

picture of silicon monocarbide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.224      
2 C -0.224      


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 2.073 2.073
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.907 0.000 0.000
y 0.000 -19.907 0.000
z 0.000 0.000 -15.074
Traceless
 xyz
x -2.417 0.000 0.000
y 0.000 -2.417 0.000
z 0.000 0.000 4.833
Polar
3z2-r29.666
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 -14.017 0.000 0.000
y 0.000 -14.017 0.000
z 0.000 0.000 7.677


<r2> (average value of r2) Å2
<r2> 22.920
(<r2>)1/2 4.787