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

using model chemistry: HSEh1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-323.350486
Energy at 298.15K-323.348758
HF Energy-323.350486
Nuclear repulsion energy26.473582
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/STO-3G
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 1136 1003 6.66      

Unscaled Zero Point Vibrational Energy (zpe) 567.9 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 501.5 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/STO-3G
B
0.71202

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.504
C2 0.000 0.000 -1.175

Atom - Atom Distances (Å)
  Si1 C2
Si11.6791
C21.6791

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/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.293      
2 C -0.293      


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 0.934 0.934
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.606 0.000 0.000
y 0.000 -13.493 0.000
z 0.000 0.000 -16.746
Traceless
 xyz
x -0.487 0.000 0.000
y 0.000 2.683 0.000
z 0.000 0.000 -2.196
Polar
3z2-r2-4.393
x2-y2-2.113
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.651 0.000 0.000
y 0.000 1.593 0.000
z 0.000 0.000 3.758


<r2> (average value of r2) Å2
<r2> 21.386
(<r2>)1/2 4.624

State 2 (1Σ)

Jump to S1C1
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-323.305382
Energy at 298.15K-323.303676
HF Energy-323.305382
Nuclear repulsion energy28.047788
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/STO-3G
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 1329 1174 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 664.4 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 586.7 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 HSEh1PBE/STO-3G
B
0.79921

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.475
C2 0.000 0.000 -1.109

Atom - Atom Distances (Å)
  Si1 C2
Si11.5848
C21.5848

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/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.294      
2 C -0.294      


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 1.391 1.391
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.473 0.000 0.000
y 0.000 -15.473 0.000
z 0.000 0.000 -13.110
Traceless
 xyz
x -1.181 0.000 0.000
y 0.000 -1.181 0.000
z 0.000 0.000 2.362
Polar
3z2-r24.725
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 2.378 0.000 0.000
y 0.000 2.378 0.000
z 0.000 0.000 4.227


<r2> (average value of r2) Å2
<r2> 19.721
(<r2>)1/2 4.441