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/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-166.260884
Energy at 298.15K 
HF Energy-165.720299
Nuclear repulsion energy48.927370
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/cc-pVTZ
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 4044 3806 51.94      
2 A1 752 708 9.58      
3 A1 602 567 154.09      
4 A1 302 285 16.96      
5 A2 213i 200i 0.00      
6 B1 346 326 74.89      
7 B2 4041 3804 145.80      
8 B2 1549 1458 362.74      
9 B2 493 464 288.57      

Unscaled Zero Point Vibrational Energy (zpe) 5958.4 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 5608.0 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 CCSD/cc-pVTZ
ABC
17.45040 0.22846 0.22550

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.006
O2 0.000 1.428 0.078
O3 0.000 -1.428 0.078
H4 0.000 2.057 -0.634
H5 0.000 -2.057 -0.634

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43011.43012.15452.1545
O21.43012.85660.94973.5575
O31.43012.85663.55750.9497
H42.15450.94973.55754.1146
H52.15453.55750.94974.1146

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 128.608 Be1 O3 H5 128.608
O2 Be1 O3 174.254
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-166.261643
Energy at 298.15K-166.263178
HF Energy-165.720814
Nuclear repulsion energy48.909388
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/cc-pVTZ
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 4028 3791 28.86      
2 A 747 703 4.01      
3 A 597 562 89.74      
4 A 314 296 37.28      
5 A 223 210 112.63      
6 B 4026 3789 156.55      
7 B 1549 1458 355.71      
8 B 582 548 334.64      
9 B 310 292 84.83      

Unscaled Zero Point Vibrational Energy (zpe) 6187.9 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 5824.0 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 CCSD/cc-pVTZ
ABC
16.09836 0.22714 0.22702

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.015
O2 0.000 1.431 -0.056
O3 0.000 -1.431 -0.056
H4 0.530 2.011 0.479
H5 -0.530 -2.011 0.479

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43151.43152.13752.1375
O21.43152.86180.95073.5233
O31.43152.86183.52330.9507
H42.13750.95073.52334.1592
H52.13753.52330.95074.1592

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 126.415 Be1 O3 H5 126.415
O2 Be1 O3 176.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability