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

using model chemistry: HSEh1PBE/cc-pV(T+d)Z

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/cc-pV(T+d)Z
 hartrees
Energy at 0K-327.240237
Energy at 298.15K-327.238504
HF Energy-327.240237
Nuclear repulsion energy25.985924
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/cc-pV(T+d)Z
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 992 992 17.04      

Unscaled Zero Point Vibrational Energy (zpe) 495.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 495.9 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/cc-pV(T+d)Z
B
0.68603

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pV(T+d)Z

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 -1.197

Atom - Atom Distances (Å)
  Si1 C2
Si11.7106
C21.7106

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/cc-pV(T+d)Z 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 1.534 1.534
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.487 0.000 0.000
y 0.000 -17.192 0.000
z 0.000 0.000 -19.661
Traceless
 xyz
x -2.061 0.000 0.000
y 0.000 2.882 0.000
z 0.000 0.000 -0.821
Polar
3z2-r2-1.643
x2-y2-3.295
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.476 0.000 0.000
y 0.000 4.262 0.000
z 0.000 0.000 8.194


<r2> (average value of r2) Å2
<r2> 24.227
(<r2>)1/2 4.922

State 2 (1Σ)

Jump to S1C1
Energy calculated at HSEh1PBE/cc-pV(T+d)Z
 hartrees
Energy at 0K-327.192144
Energy at 298.15K-327.190428
HF Energy-327.192144
Nuclear repulsion energy27.165823
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/cc-pV(T+d)Z
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 1101 1101 9.45      

Unscaled Zero Point Vibrational Energy (zpe) 550.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 550.7 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/cc-pV(T+d)Z
B
0.74974

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pV(T+d)Z

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.491
C2 0.000 0.000 -1.145

Atom - Atom Distances (Å)
  Si1 C2
Si11.6363
C21.6363

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/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Si 0.228      
2 C -0.228      


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 2.151 2.151
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.924 0.000 0.000
y 0.000 -19.924 0.000
z 0.000 0.000 -15.214
Traceless
 xyz
x -2.355 0.000 0.000
y 0.000 -2.355 0.000
z 0.000 0.000 4.710
Polar
3z2-r29.420
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 15.813 0.000 0.000
y 0.000 15.813 0.000
z 0.000 0.000 8.136


<r2> (average value of r2) Å2
<r2> 22.708
(<r2>)1/2 4.765