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

using model chemistry: MP2=FULL/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=FULL/6-31G**
 hartrees
Energy at 0K-166.070351
Energy at 298.15K 
HF Energy-165.649469
Nuclear repulsion energy48.842318
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=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 4065 3798 54.49      
2 A1 745 697 9.78      
3 A1 574 536 177.87      
4 A1 282 264 4.25      
5 A2 238i 223i 0.00      
6 B1 344 321 73.12      
7 B2 4063 3796 159.26      
8 B2 1555 1453 345.75      
9 B2 431 402 336.58      

Unscaled Zero Point Vibrational Energy (zpe) 5909.8 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 5522.1 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=FULL/6-31G**
ABC
16.49150 0.22813 0.22502

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.018
O2 0.000 1.431 0.077
O3 0.000 -1.431 0.077
H4 0.000 2.041 -0.656
H5 0.000 -2.041 -0.656

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43221.43222.14932.1493
O21.43222.86180.95403.5484
O31.43222.86183.54840.9540
H42.14930.95403.54844.0817
H52.14933.54840.95404.0817

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 127.366 Be1 O3 H5 127.366
O2 Be1 O3 175.250
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-166.071397
Energy at 298.15K-166.072880
HF Energy-165.650115
Nuclear repulsion energy48.810720
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=FULL/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 4043 3777 29.53      
2 A 739 691 3.71      
3 A 574 536 97.84      
4 A 300 280 48.60      
5 A 245 229 113.86      
6 B 4041 3776 164.74      
7 B 1551 1449 336.82      
8 B 563 526 368.11      
9 B 295 276 100.87      

Unscaled Zero Point Vibrational Energy (zpe) 6174.9 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 5769.8 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=FULL/6-31G**
ABC
14.93519 0.22669 0.22666

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.434 -0.055
O3 0.000 -1.434 -0.055
H4 0.558 1.984 0.493
H5 -0.558 -1.984 0.493

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43451.43452.12522.1252
O21.43452.86850.95563.5061
O31.43452.86853.50610.9556
H42.12520.95563.50614.1211
H52.12523.50610.95564.1211

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 124.310 Be1 O3 H5 124.310
O2 Be1 O3 177.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability