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

using model chemistry: mPW1PW91/6-31G

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 mPW1PW91/6-31G
 hartrees
Energy at 0K-62.629201
Energy at 298.15K-62.626729
HF Energy-62.629201
Nuclear repulsion energy10.521718
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 mPW1PW91/6-31G
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 1144 1083 37.43      

Unscaled Zero Point Vibrational Energy (zpe) 572.1 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 541.6 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 mPW1PW91/6-31G
B
1.28970

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.823
C2 0.000 0.000 0.686

Atom - Atom Distances (Å)
  B1 C2
B11.5088
C21.5088

picture of boron monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.167      
2 C -0.167      


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 -1.288 1.288
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.269 0.000 0.000
y 0.000 -11.269 0.000
z 0.000 0.000 -14.258
Traceless
 xyz
x 1.494 0.000 0.000
y 0.000 1.494 0.000
z 0.000 0.000 -2.988
Polar
3z2-r2-5.977
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 2.171 0.000 0.000
y 0.000 2.171 0.000
z 0.000 0.000 6.992


<r2> (average value of r2) Å2
<r2> 13.870
(<r2>)1/2 3.724

State 2 (2Π)

Jump to S1C1
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-62.584587
Energy at 298.15K-62.582134
Nuclear repulsion energy11.075821
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 mPW1PW91/6-31G
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 1369 1296 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 684.4 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 647.9 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 mPW1PW91/6-31G
B
1.42911

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.782
C2 0.000 0.000 0.652

Atom - Atom Distances (Å)
  B1 C2
B11.4333
C21.4333

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