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 Be(OH)2 (Beryllium hydroxide)

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 no C2V 1A1
1 2 yes C2 1A

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-166.368071
Energy at 298.15K 
HF Energy-166.230587
Nuclear repulsion energy48.975336
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
(Å4/u)
Dep P Dep U
1 A1 4026 4026 48.17      
2 A1 749 749 7.20      
3 A1 582 582 172.09      
4 A1 281 281 4.89      
5 A2 237i 237i 0.00      
6 B1 335 335 64.73      
7 B2 4024 4024 139.88      
8 B2 1561 1561 341.60      
9 B2 448 448 325.17      

Unscaled Zero Point Vibrational Energy (zpe) 5884.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5884.0 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
16.76312 0.22961 0.22651

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)
Be1 0.000 0.000 0.014
O2 0.000 1.425 0.078
O3 0.000 -1.425 0.078
H4 0.000 2.044 -0.649
H5 0.000 -2.044 -0.649

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42691.42692.14862.1486
O21.42692.85090.95443.5444
O31.42692.85093.54440.9544
H42.14860.95443.54444.0871
H52.14863.54440.95444.0871

picture of Beryllium hydroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be1 O2 H4 127.809 Be1 O3 H5 127.809
O2 Be1 O3 174.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-166.369090
Energy at 298.15K-166.370568
HF Energy-166.231413
Nuclear repulsion energy48.943215
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
(Å4/u)
Dep P Dep U
1 A 4002 4002 26.31      
2 A 743 743 2.74      
3 A 581 581 93.54      
4 A 294 294 44.10      
5 A 241 241 111.40      
6 B 4001 4001 142.69      
7 B 1558 1558 332.43      
8 B 571 571 360.93      
9 B 291 291 89.73      

Unscaled Zero Point Vibrational Energy (zpe) 6140.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6140.8 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**
ABC
15.14275 0.22818 0.22813

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.024
O2 0.000 1.429 -0.055
O3 0.000 -1.429 -0.055
H4 0.552 1.986 0.491
H5 -0.552 -1.986 0.491

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42921.42922.12492.1249
O21.42922.85770.95593.5022
O31.42922.85773.50220.9559
H42.12490.95593.50224.1228
H52.12493.50220.95594.1228

picture of Beryllium hydroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be1 O2 H4 124.777 Be1 O3 H5 124.777
O2 Be1 O3 177.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability