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All results from a given calculation for BC (boron monocarbide)

using model chemistry: PBEPBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 4Σ-
2 1 yes C*V 2Π

State 1 (4Σ-)

Jump to S2C1
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-62.558887
Energy at 298.15K-62.556412
HF Energy-62.558887
Nuclear repulsion energy10.387379
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 PBEPBE/6-31G
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 1119 1104 5.36      

Unscaled Zero Point Vibrational Energy (zpe) 559.5 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 551.8 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 PBEPBE/6-31G
B
1.25697

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.834
C2 0.000 0.000 0.695

Atom - Atom Distances (Å)
  B1 C2
B11.5283
C21.5283

picture of boron monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.137      
2 C -0.137      


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 -0.917 0.917
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.280 0.000 0.000
y 0.000 -11.280 0.000
z 0.000 0.000 -14.260
Traceless
 xyz
x 1.490 0.000 0.000
y 0.000 1.490 0.000
z 0.000 0.000 -2.980
Polar
3z2-r2-5.961
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 2.211 0.000 0.000
y 0.000 2.211 0.000
z 0.000 0.000 6.407


<r2> (average value of r2) Å2
<r2> 14.036
(<r2>)1/2 3.746

State 2 (2Π)

Jump to S1C1
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-62.529932
Energy at 298.15K-62.527478
Nuclear repulsion energy11.014655
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 PBEPBE/6-31G
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 1356 1338 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 678.1 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 668.8 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 PBEPBE/6-31G
B
1.41337

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.786
C2 0.000 0.000 0.655

Atom - Atom Distances (Å)
  B1 C2
B11.4413
C21.4413

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