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All results from a given calculation for B2O3 (diboron trioxide)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
1 2 no D*H 1ΣG

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-274.939932
Energy at 298.15K 
HF Energy-274.199664
Nuclear repulsion energy117.556804
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 MP2/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2083 1979 50.90 47.95 0.12 0.22
2 A1 788 749 17.24 12.06 0.10 0.18
3 A1 552 525 55.83 1.20 0.42 0.59
4 A1 110 105 10.35 2.23 0.69 0.82
5 A2 469 446 0.00 3.30 0.75 0.86
6 B1 495 471 92.72 0.49 0.75 0.86
7 B2 2086 1983 868.59 5.25 0.75 0.86
8 B2 1184 1125 107.94 1.18 0.75 0.86
9 B2 460 437 15.21 1.58 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4114.0 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 3909.5 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 MP2/6-311G*
ABC
1.40826 0.08194 0.07743

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.662
B2 0.000 1.210 0.089
B3 0.000 -1.210 0.089
O4 0.000 2.329 -0.387
O5 0.000 -2.329 -0.387

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.33921.33922.55402.5540
B21.33922.42081.21533.5710
B31.33922.42083.57101.2153
O42.55401.21533.57104.6575
O52.55403.57101.21534.6575

picture of diboron trioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 B2 O4 177.710 O1 B3 O5 177.710
B2 O1 B3 129.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D*H)

Jump to S1C1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-274.934833
Energy at 298.15K 
HF Energy-274.198384
Nuclear repulsion energy116.343653
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 MP2/6-311G*
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 2089 1985 0.00 76.56 0.16 0.28
2 Σg 667 634 0.00 11.47 0.16 0.27
3 Σu 2136 2030 1401.04 0.00 0.00 0.00
4 Σu 1304 1239 118.56 0.00 0.00 0.00
5 Πg 471 447 0.00 4.17 0.75 0.86
5 Πg 471 447 0.00 4.17 0.75 0.86
6 Πu 444 422 112.00 0.00 0.00 0.00
6 Πu 444 422 112.00 0.00 0.00 0.00
7 Πu 125i 119i 1.51 0.00 0.00 0.00
7 Πu 125i 119i 1.51 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 3886.9 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 3693.7 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 MP2/6-311G*
B
0.06918

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.000
B2 0.000 0.000 1.318
B3 0.000 0.000 -1.318
O4 0.000 0.000 2.534
O5 0.000 0.000 -2.534

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.31771.31772.53432.5343
B21.31772.63541.21663.8520
B31.31772.63543.85201.2166
O42.53431.21663.85205.0686
O52.53433.85201.21665.0686

picture of diboron trioxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 B2 O4 180.000 O1 B3 O5 180.000
B2 O1 B3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability