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

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description

Conformer 1 (C2V)

Jump to S1C2 S1C3
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.223285
HF Energy-0.223285
Nuclear repulsion energy44.617165
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 PM3
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 3947 3845 14.99      
2 A1 939 915 46.18      
3 A1 707 689 0.11      
4 A1 269 262 71.67      
5 A2 193i 188i 0.00      
6 B1 294 286 111.34      
7 B2 3946 3844 6.66      
8 B2 1430 1393 237.57      
9 B2 857 835 235.48      

Unscaled Zero Point Vibrational Energy (zpe) 6098.2 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 5939.6 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 PM3
ABC
12.10245 0.21575 0.21197

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.011
O2 0.000 1.489 0.093
O3 0.000 -1.489 0.093
H4 0.000 1.886 -0.762
H5 0.000 -1.886 -0.762

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.49171.49172.03832.0383
O21.49172.97890.94243.4819
O31.49172.97893.48190.9424
H42.03830.94243.48193.7716
H52.03833.48190.94243.7716

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 111.744 Be1 O3 H5 111.744
O2 Be1 O3 173.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.225044
HF Energy-0.225044
Nuclear repulsion energy44.657460
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 PM3
Rotational Constants (cm-1) from geometry optimized at PM3
ABC
12.10245 0.21575 0.21197

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K-0.177394
HF Energy-0.177394
Nuclear repulsion energy45.045848
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 PM3
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 4212 4102 0.00      
2 Σg 779 759 0.00      
3 Σu 4209 4099 256.07      
4 Σu 1577 1536 845.26      
5 Πg 949i 925i 0.00      
5 Πg 949i 925i 0.00      
6 Πu 268 261 35.28      
6 Πu 268 261 35.28      
7 Πu 945i 920i 552.72      
7 Πu 945i 920i 552.72      

Unscaled Zero Point Vibrational Energy (zpe) 3762.9 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 3665.0 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 PM3
B
0.22368

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.000
O2 0.000 0.000 1.419
O3 0.000 0.000 -1.419
H4 0.000 0.000 2.334
H5 0.000 0.000 -2.334

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41871.41872.33392.3339
O21.41872.83730.91523.7526
O31.41872.83733.75260.9152
H42.33390.91523.75264.6678
H52.33393.75260.91524.6678

picture of Beryllium hydroxide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be1 O2 H4 180.000 Be1 O3 H5 180.000
O2 Be1 O3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability