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

using model chemistry: HSEh1PBE/aug-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 HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-327.239124
Energy at 298.15K-327.237390
HF Energy-327.239124
Nuclear repulsion energy25.901710
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 HSEh1PBE/aug-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 987 949 18.37      

Unscaled Zero Point Vibrational Energy (zpe) 493.3 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 474.4 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 HSEh1PBE/aug-cc-pVTZ
B
0.68159

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.515
C2 0.000 0.000 -1.201

Atom - Atom Distances (Å)
  Si1 C2
Si11.7161
C21.7161

picture of silicon monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.292      
2 C -0.292      


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 1.600 1.600
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.350 0.000 0.000
y 0.000 -20.683 0.000
z 0.000 0.000 -19.771
Traceless
 xyz
x 2.876 0.000 0.000
y 0.000 -2.122 0.000
z 0.000 0.000 -0.754
Polar
3z2-r2-1.508
x2-y23.333
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.065 0.000 0.000
y 0.000 7.833 0.000
z 0.000 0.000 8.771


<r2> (average value of r2) Å2
<r2> 24.404
(<r2>)1/2 4.940

State 2 (1Σ)

Jump to S1C1
Energy calculated at HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-327.190687
Energy at 298.15K-327.188970
HF Energy-327.190687
Nuclear repulsion energy27.074652
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 HSEh1PBE/aug-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 1097 1055 10.72      

Unscaled Zero Point Vibrational Energy (zpe) 548.5 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 527.5 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 HSEh1PBE/aug-cc-pVTZ
B
0.74471

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-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 -1.149

Atom - Atom Distances (Å)
  Si1 C2
Si11.6418
C21.6418

picture of silicon monocarbide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.308      
2 C -0.308      


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 2.218 2.218
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.121 0.000 0.000
y 0.000 -20.121 0.000
z 0.000 0.000 -15.287
Traceless
 xyz
x -2.417 0.000 0.000
y 0.000 -2.417 0.000
z 0.000 0.000 4.834
Polar
3z2-r29.669
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 18.568 0.000 0.000
y 0.000 18.568 0.000
z 0.000 0.000 8.601


<r2> (average value of r2) Å2
<r2> 22.882
(<r2>)1/2 4.783