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All results from a given calculation for B2O2 (Diboron dioxide)

using model chemistry: B3LYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at B3LYP/6-311G*
 hartrees
Energy at 0K-200.301173
Energy at 298.15K-200.300297
Nuclear repulsion energy66.856748
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 B3LYP/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2139 2067 0.00      
2 Σg 618 597 0.00      
3 Σu 1966 1899 150.61      
4 Πg 515 497 0.00      
4 Πg 515 497 0.00      
5 Πu 222 214 50.71      
5 Πu 222 214 50.71      

Unscaled Zero Point Vibrational Energy (zpe) 3097.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 2993.0 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 B3LYP/6-311G*
B
0.11698

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.814
B2 0.000 0.000 -0.814
O3 0.000 0.000 2.012
O4 0.000 0.000 -2.012

Atom - Atom Distances (Å)
  B1 B2 O3 O4
B11.62821.19802.8262
B21.62822.82621.1980
O31.19802.82624.0242
O42.82621.19804.0242

picture of Diboron dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 O4 180.000 B2 B1 O3 180.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.174     0.410
2 B 0.174     0.410
3 O -0.174     -0.410
4 O -0.174     -0.410


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 0.000 0.000
CHELPG        
AIM        
ESP 0.000 0.000 0.000 0.000


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.900 0.000 0.000
y 0.000 -19.900 0.000
z 0.000 0.000 -32.810
Traceless
 xyz
x 6.455 0.000 0.000
y 0.000 6.455 0.000
z 0.000 0.000 -12.910
Polar
3z2-r2-25.820
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 2.475 0.000 0.000
y 0.000 2.475 0.000
z 0.000 0.000 5.905


<r2> (average value of r2) Å2
<r2> 86.522
(<r2>)1/2 9.302