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)/6-311+G(3df,2p)

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)/6-311+G(3df,2p)
 hartrees
Energy at 0K-166.278337
Energy at 298.15K 
HF Energy-165.719738
Nuclear repulsion energy48.934503
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)/6-311+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 4041 3988        
2 A1 746 736        
3 A1 517 510        
4 A1 285 281        
5 A2 195i 193i        
6 B1 328 324        
7 B2 4040 3987        
8 B2 1532 1512        
9 B2 416 410        

Unscaled Zero Point Vibrational Energy (zpe) 5854.2 cm-1
Scaled (by 0.9869) Zero Point Vibrational Energy (zpe) 5777.5 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)/6-311+G(3df,2p)
ABC
20.45555 0.22802 0.22550

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.021
O2 0.000 1.424 0.077
O3 0.000 -1.424 0.077
H4 0.000 2.118 -0.572
H5 0.000 -2.118 -0.572

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42761.42762.18872.1887
O21.42762.84840.95023.6013
O31.42762.84843.60130.9502
H42.18870.95023.60134.2362
H52.18873.60130.95024.2362

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 132.982 Be1 O3 H5 132.982
O2 Be1 O3 172.152
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCSD(T)/6-311+G(3df,2p)
 hartrees
Energy at 0K-166.278971
Energy at 298.15K-166.280265
HF Energy-165.720333
Nuclear repulsion energy48.898728
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)/6-311+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 A 4026 3974        
2 A 741 731        
3 A 508 502        
4 A 298 294        
5 A 177 175        
6 B 4025 3972        
7 B 1530 1509        
8 B 499 492        
9 B 286 282        

Unscaled Zero Point Vibrational Energy (zpe) 6044.4 cm-1
Scaled (by 0.9869) Zero Point Vibrational Energy (zpe) 5965.2 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 CCSD(T)/6-311+G(3df,2p)
ABC
18.40055 0.22680 0.22646

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.010
O2 0.000 1.428 -0.053
O3 0.000 -1.428 -0.053
H4 0.538 2.067 0.402
H5 -0.538 -2.067 0.402

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42951.42952.17182.1718
O21.42952.85620.95123.5656
O31.42952.85623.56560.9512
H42.17180.95123.56564.2721
H52.17183.56560.95124.2721

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 130.567 Be1 O3 H5 130.567
O2 Be1 O3 174.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability