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

using model chemistry: M06-2X/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-327.358862
Energy at 298.15K-327.357130
HF Energy-327.358862
Nuclear repulsion energy26.006264
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-pVTZ
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 995 950 42.08      

Unscaled Zero Point Vibrational Energy (zpe) 497.4 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 475.1 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-pVTZ
B
0.68710

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.513
C2 0.000 0.000 -1.196

Atom - Atom Distances (Å)
  Si1 C2
Si11.7092
C21.7092

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-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.169      
2 C -0.169      


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 1.591 1.591
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.334 0.000 0.000
y 0.000 -20.572 0.000
z 0.000 0.000 -19.648
Traceless
 xyz
x 2.776 0.000 0.000
y 0.000 -2.081 0.000
z 0.000 0.000 -0.695
Polar
3z2-r2-1.390
x2-y23.238
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.276 0.000 0.000
y 0.000 6.686 0.000
z 0.000 0.000 8.451


<r2> (average value of r2) Å2
<r2> 24.253
(<r2>)1/2 4.925

State 2 (1Σ)

Jump to S1C1
Energy calculated at M06-2X/cc-pVTZ
 hartrees
Energy at 0K-327.313538
Energy at 298.15K-327.311821
HF Energy-327.313538
Nuclear repulsion energy27.051834
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-pVTZ
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 1090 1041 17.31      

Unscaled Zero Point Vibrational Energy (zpe) 544.8 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 520.4 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-pVTZ
B
0.74346

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

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 -1.150

Atom - Atom Distances (Å)
  Si1 C2
Si11.6432
C21.6432

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-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.168      
2 C -0.168      


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 2.187 2.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.992 0.000 0.000
y 0.000 -19.992 0.000
z 0.000 0.000 -15.290
Traceless
 xyz
x -2.351 0.000 0.000
y 0.000 -2.351 0.000
z 0.000 0.000 4.701
Polar
3z2-r29.403
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 -8.235 0.000 0.000
y 0.000 -8.235 0.000
z 0.000 0.000 8.355


<r2> (average value of r2) Å2
<r2> 22.848
(<r2>)1/2 4.780