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

using model chemistry: mPW1PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-61.818052
Energy at 298.15K-61.815587
HF Energy-61.818052
Nuclear repulsion energy10.699356
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/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 1168 19.64      

Unscaled Zero Point Vibrational Energy (zpe) 664.3 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 583.8 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 mPW1PW91/STO-3G
B
1.33361

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.809
C2 0.000 0.000 0.674

Atom - Atom Distances (Å)
  B1 C2
B11.4838
C21.4838

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/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.101      
2 C -0.101      


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 -1.227 1.227
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.264 0.000 0.000
y 0.000 -9.264 0.000
z 0.000 0.000 -11.557
Traceless
 xyz
x 1.147 0.000 0.000
y 0.000 1.147 0.000
z 0.000 0.000 -2.293
Polar
3z2-r2-4.586
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 1.114 0.000 0.000
y 0.000 1.114 0.000
z 0.000 0.000 3.640


<r2> (average value of r2) Å2
<r2> 12.268
(<r2>)1/2 3.503

State 2 (2Π)

Jump to S1C1
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-61.777384
Energy at 298.15K-61.774935
Nuclear repulsion energy11.418314
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/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 1622 1425 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 810.8 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 712.6 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/STO-3G
B
1.51886

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 -0.758
C2 0.000 0.000 0.632

Atom - Atom Distances (Å)
  B1 C2
B11.3903
C21.3903

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