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All results from a given calculation for Be(OH)2 (Beryllium hydroxide)

using model chemistry: MP2/6-31G**

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 MP2/6-31G**
 hartrees
Energy at 0K-166.059708
Energy at 298.15K 
HF Energy-165.649223
Nuclear repulsion energy48.729530
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 MP2/6-31G**
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 4057 3799 53.92      
2 A1 743 695 10.20      
3 A1 592 554 169.98      
4 A1 282 265 6.66      
5 A2 238i 223i 0.00      
6 B1 340 319 74.05      
7 B2 4055 3797 152.39      
8 B2 1548 1450 342.74      
9 B2 454 425 336.40      

Unscaled Zero Point Vibrational Energy (zpe) 5915.7 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 5540.1 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 MP2/6-31G**
ABC
16.03419 0.22708 0.22391

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.019
O2 0.000 1.435 0.078
O3 0.000 -1.435 0.078
H4 0.000 2.034 -0.666
H5 0.000 -2.034 -0.666

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43651.43652.14612.1461
O21.43652.87050.95503.5481
O31.43652.87053.54810.9550
H42.14610.95503.54814.0679
H52.14613.54810.95504.0679

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 126.453 Be1 O3 H5 126.453
O2 Be1 O3 175.264
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-166.060787
Energy at 298.15K-166.062286
HF Energy-165.649874
Nuclear repulsion energy48.704503
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 MP2/6-31G**
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 4036 3779 29.14      
2 A 737 690 3.65      
3 A 589 551 93.71      
4 A 298 279 52.94      
5 A 246 230 110.94      
6 B 4034 3778 159.56      
7 B 1545 1447 334.28      
8 B 578 541 366.95      
9 B 294 275 97.97      

Unscaled Zero Point Vibrational Energy (zpe) 6178.0 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 5785.7 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 MP2/6-31G**
ABC
14.66274 0.22565 0.22561

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.027
O2 0.000 1.438 -0.056
O3 0.000 -1.438 -0.056
H4 0.562 1.979 0.498
H5 -0.562 -1.979 0.498

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43861.43862.12332.1233
O21.43862.87660.95653.5072
O31.43862.87663.50720.9565
H42.12330.95653.50724.1145
H52.12333.50720.95654.1145

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 123.625 Be1 O3 H5 123.625
O2 Be1 O3 177.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability