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

using model chemistry: MP2/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-275.186463
Energy at 298.15K 
HF Energy-274.256440
Nuclear repulsion energy117.361416
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/cc-pVQZ
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 2069 1962 44.50 72.09 0.10 0.18
2 A1 754 715 12.42 13.60 0.08 0.15
3 A1 534 506 73.65 0.90 0.21 0.34
4 A1 97 92 11.83 1.60 0.61 0.76
5 A2 464 440 0.00 2.61 0.75 0.86
6 B1 486 461 100.37 0.20 0.75 0.86
7 B2 2078 1971 1063.58 3.53 0.75 0.86
8 B2 1214 1152 105.74 0.84 0.75 0.86
9 B2 456 432 14.02 1.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4075.6 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 3865.3 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/cc-pVQZ
ABC
1.90598 0.07846 0.07535

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.570
B2 0.000 1.236 0.075
B3 0.000 -1.236 0.075
O4 0.000 2.380 -0.332
O5 0.000 -2.380 -0.332

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.33121.33122.54552.5455
B21.33122.47111.21483.6387
B31.33122.47113.63871.2148
O42.54551.21483.63874.7607
O52.54553.63871.21484.7607

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 177.702 O1 B3 O5 177.702
B2 O1 B3 136.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D*H)

Jump to S1C1
Energy calculated at MP2/cc-pVQZ
 hartrees
Energy at 0K-275.183998
Energy at 298.15K 
HF Energy-274.255562
Nuclear repulsion energy116.583154
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/cc-pVQZ
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 2074 1967 0.00 97.95 0.12 0.22
2 Σg 668 634 0.00 13.54 0.12 0.21
3 Σu 2118 2009 1538.87 0.00 0.00 0.00
4 Σu 1304 1237 106.44 0.00 0.00 0.00
5 Πg 468 444 0.00 2.98 0.75 0.86
5 Πg 468 444 0.00 2.98 0.75 0.86
6 Πu 446 423 110.55 0.00 0.75 0.86
6 Πu 446 423 110.55 0.00 0.75 0.86
7 Πu 99i 94i 4.19 0.00 0.00 0.00
7 Πu 99i 94i 4.19 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 3898.4 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 3697.2 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/cc-pVQZ
B
0.06949

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVQZ

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 2.529
O5 0.000 0.000 -2.529

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.31311.31312.52922.5292
B21.31312.62621.21613.8423
B31.31312.62623.84231.2161
O42.52921.21613.84235.0584
O52.52923.84231.21615.0584

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