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: CCSD(T)/6-311G*

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 CCSD(T)/6-311G*
 hartrees
Energy at 0K-166.140121
Energy at 298.15K 
HF Energy-165.683783
Nuclear repulsion energy48.940096
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)/6-311G*
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 3987 3837        
2 A1 756 728        
3 A1 600 578        
4 A1 327 315        
5 A2 242i 233i        
6 B1 384 370        
7 B2 3985 3836        
8 B2 1557 1498        
9 B2 464 447        

Unscaled Zero Point Vibrational Energy (zpe) 5908.4 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 5687.4 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)/6-311G*
ABC
16.93699 0.22895 0.22589

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.028
O2 0.000 1.428 0.074
O3 0.000 -1.428 0.074
H4 0.000 2.046 -0.650
H5 0.000 -2.046 -0.650

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42831.42832.15592.1559
O21.42832.85510.95283.5486
O31.42832.85513.54860.9528
H42.15590.95283.54864.0926
H52.15593.54860.95284.0926

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 128.661 Be1 O3 H5 128.661
O2 Be1 O3 176.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCSD(T)/6-311G*
 hartrees
Energy at 0K-166.141138
Energy at 298.15K-166.142756
HF Energy-165.684376
Nuclear repulsion energy48.919089
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)/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3968 3819        
2 A 751 723        
3 A 595 573        
4 A 340 327        
5 A 256 247        
6 B 3967 3818        
7 B 1556 1498        
8 B 580 558        
9 B 329 317        

Unscaled Zero Point Vibrational Energy (zpe) 6170.9 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 5940.1 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)/6-311G*
ABC
15.69244 0.22765 0.22745

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.034
O2 0.000 1.430 -0.053
O3 0.000 -1.430 -0.053
H4 0.530 2.003 0.494
H5 -0.530 -2.003 0.494

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42991.42992.13862.1386
O21.42992.85950.95403.5166
O31.42992.85953.51660.9540
H42.13860.95403.51664.1445
H52.13863.51660.95404.1445

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 126.404 Be1 O3 H5 126.404
O2 Be1 O3 178.488
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability