return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCSD(T)=FULL/6-311+G(3df,2p)

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 CCSD(T)=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-275.252467
Energy at 298.15K 
HF Energy-274.237135
Nuclear repulsion energy117.708710
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 CCSD(T)=FULL/6-311+G(3df,2p)
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 2107 2107        
2 A1 744 744        
3 A1 539 539        
4 A1 84 84        
5 A2 485 485        
6 B1 513 513        
7 B2 2113 2113        
8 B2 1254 1254        
9 B2 477 477        

Unscaled Zero Point Vibrational Energy (zpe) 4158.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4158.5 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 CCSD(T)=FULL/6-311+G(3df,2p)
ABC
2.50002 0.07687 0.07458

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.498
B2 0.000 1.250 0.065
B3 0.000 -1.250 0.065
O4 0.000 2.404 -0.290
O5 0.000 -2.404 -0.290

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.32261.32262.52982.5298
B21.32262.49981.20763.6712
B31.32262.49983.67121.2076
O42.52981.20763.67124.8082
O52.52983.67121.20764.8082

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 178.022 O1 B3 O5 178.022
B2 O1 B3 141.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D*H)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-275.251294
Energy at 298.15K 
HF Energy-274.236040
Nuclear repulsion energy117.124169
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 CCSD(T)=FULL/6-311+G(3df,2p)
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 2111 2111        
2 Σg 679 679        
3 Σu 2142 2142        
4 Σu 1325 1325        
5 Πg 489 489        
5 Πg 489 489        
6 Πu 493 493        
6 Πu 493 493        
7 Πu 66i 66i        
7 Πu 67i 67i        

Unscaled Zero Point Vibrational Energy (zpe) 4044.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4044.9 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 CCSD(T)=FULL/6-311+G(3df,2p)
B
0.07012

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-311+G(3df,2p)

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 1.309
B3 0.000 0.000 -1.309
O4 0.000 0.000 2.517
O5 0.000 0.000 -2.517

Atom - Atom Distances (Å)
  O1 B2 B3 O4 O5
O11.30851.30852.51722.5172
B21.30852.61701.20873.8258
B31.30852.61703.82581.2087
O42.51721.20873.82585.0345
O52.51723.82581.20875.0345

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