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

using model chemistry: MP2=FULL/aug-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 MP2=FULL/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-326.933565
Energy at 298.15K-326.931839
HF Energy-326.643955
Nuclear repulsion energy26.516595
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 MP2=FULL/aug-cc-pV(T+d)Z
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 936 936 8.91      

Unscaled Zero Point Vibrational Energy (zpe) 467.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 467.8 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 MP2=FULL/aug-cc-pV(T+d)Z
B
0.71433

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pV(T+d)Z

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.503
C2 0.000 0.000 -1.173

Atom - Atom Distances (Å)
  Si1 C2
Si11.6763
C21.6763

picture of silicon monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1Σ)

Jump to S1C1
Energy calculated at MP2=FULL/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-326.921285
Energy at 298.15K-326.919568
HF Energy-326.535814
Nuclear repulsion energy26.646728
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 MP2=FULL/aug-cc-pV(T+d)Z
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 999 999 9.82      

Unscaled Zero Point Vibrational Energy (zpe) 499.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 499.6 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 MP2=FULL/aug-cc-pV(T+d)Z
B
0.72136

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pV(T+d)Z

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Si1 0.000 0.000 0.500
C2 0.000 0.000 -1.168

Atom - Atom Distances (Å)
  Si1 C2
Si11.6682
C21.6682

picture of silicon monocarbide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability