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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-274.887988
Energy at 298.15K 
HF Energy-274.158258
Nuclear repulsion energy116.337413
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/aug-cc-pVDZ
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 2018 1935 50.11 85.49 0.09 0.16
2 A1 743 712 15.66 15.38 0.08 0.14
3 A1 546 524 61.44 1.52 0.12 0.21
4 A1 106 102 12.07 1.85 0.62 0.77
5 A2 476 457 0.00 2.55 0.75 0.86
6 B1 494 473 95.24 0.23 0.75 0.86
7 B2 2024 1941 1012.88 4.32 0.75 0.86
8 B2 1159 1111 100.53 0.92 0.75 0.86
9 B2 462 443 14.03 1.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4013.9 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 3849.3 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/aug-cc-pVDZ
ABC
1.65655 0.07828 0.07475

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.614
B2 0.000 1.235 0.076
B3 0.000 -1.235 0.076
O4 0.000 2.384 -0.355
O5 0.000 -2.384 -0.355

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.34711.34712.57302.5730
B21.34712.47011.22683.6443
B31.34712.47013.64431.2268
O42.57301.22683.64434.7675
O52.57303.64431.22684.7675

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 177.014 O1 B3 O5 177.014
B2 O1 B3 132.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D*H)

Jump to S1C1
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-274.884040
Energy at 298.15K 
HF Energy-274.156254
Nuclear repulsion energy115.426121
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/aug-cc-pVDZ
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 2025 1942 0.00 120.17 0.12 0.21
2 Σg 647 620 0.00 15.44 0.11 0.20
3 Σu 2063 1978 1569.04 0.00 0.00 0.00
4 Σu 1253 1201 113.70 0.00 0.00 0.00
5 Πg 483 463 0.00 2.80 0.75 0.86
5 Πg 483 463 0.00 2.80 0.75 0.86
6 Πu 448 430 107.02 0.00 0.00 0.00
6 Πu 448 430 107.02 0.00 0.00 0.00
7 Πu 112i 107i 3.01 0.00 0.00 0.00
7 Πu 112i 107i 3.01 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 3813.0 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 3656.7 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/aug-cc-pVDZ
B
0.06811

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

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 1.326
B3 0.000 0.000 -1.326
O4 0.000 0.000 2.555
O5 0.000 0.000 -2.555

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.32651.32652.55452.5545
B21.32652.65291.22813.8810
B31.32652.65293.88101.2281
O42.55451.22813.88105.1091
O52.55453.88101.22815.1091

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