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

using model chemistry: B2PLYP=FULL/6-31G**

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 B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-275.307261
Energy at 298.15K 
HF Energy-275.072924
Nuclear repulsion energy117.279740
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 B2PLYP=FULL/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 A1 2112 2112 37.93 42.76 0.15 0.27
2 A1 747 747 10.96 9.84 0.11 0.21
3 A1 519 519 83.90 0.53 0.26 0.41
4 A1 82 82 9.04 1.85 0.64 0.78
5 A2 459 459 0.00 2.94 0.75 0.86
6 B1 481 481 104.48 0.19 0.75 0.86
7 B2 2132 2132 1077.70 2.78 0.75 0.86
8 B2 1251 1251 88.96 0.85 0.75 0.86
9 B2 451 451 11.00 1.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4117.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4117.6 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 B2PLYP=FULL/6-31G**
ABC
2.29128 0.07690 0.07440

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.521
B2 0.000 1.247 0.067
B3 0.000 -1.247 0.067
O4 0.000 2.404 -0.302
O5 0.000 -2.404 -0.302

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.32741.32742.54142.5414
B21.32742.49501.21453.6706
B31.32742.49503.67061.2145
O42.54141.21453.67064.8090
O52.54143.67061.21454.8090

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 177.706 O1 B3 O5 177.706
B2 O1 B3 140.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D*H)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-275.306117
Energy at 298.15K 
HF Energy-275.072222
Nuclear repulsion energy116.632416
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 B2PLYP=FULL/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 Σg 2120 2120 0.00 62.77 0.18 0.31
2 Σg 679 679 0.00 10.63 0.17 0.29
3 Σu 2170 2170 1436.59 0.00 0.00 0.00
4 Σu 1329 1329 84.57 0.00 0.00 0.00
5 Πg 465 465 0.00 3.46 0.75 0.86
5 Πg 465 465 0.00 3.46 0.75 0.86
6 Πu 457 457 112.62 0.00 0.00 0.00
6 Πu 457 457 112.62 0.00 0.00 0.00
7 Πu 68i 68i 4.34 0.00 0.00 0.00
7 Πu 68i 68i 4.34 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4003.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4003.8 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 B2PLYP=FULL/6-31G**
B
0.06955

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

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 1.313
B3 0.000 0.000 -1.313
O4 0.000 0.000 2.528
O5 0.000 0.000 -2.528

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.31261.31262.52812.5281
B21.31262.62511.21563.8407
B31.31262.62513.84071.2156
O42.52811.21563.84075.0563
O52.52813.84071.21565.0563

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