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

using model chemistry: ROMP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2 1A

Conformer 1 (C2V)

Jump to S1C2
Vibrational Frequencies calculated at ROMP2/STO-3G
Rotational Constants (cm-1) from geometry optimized at ROMP2/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at ROMP2/STO-3G
 hartrees
Energy at 0K-163.505330
Energy at 298.15K-163.506934
HF Energy-163.385062
Nuclear repulsion energy49.636049
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 ROMP2/STO-3G
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 4063 4063        
2 A 898 898        
3 A 645 645        
4 A 502 502        
5 A 275 275        
6 B 4068 4068        
7 B 1803 1803        
8 B 570 570        
9 B 287 287        

Unscaled Zero Point Vibrational Energy (zpe) 6555.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6555.5 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 ROMP2/STO-3G
ABC
12.86538 0.24172 0.24141

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.106
O2 0.000 1.382 -0.082
O3 0.000 -1.382 -0.082
H4 0.585 1.991 0.445
H5 -0.585 -1.991 0.445

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39421.39422.10292.1029
O21.39422.76310.99583.4634
O31.39422.76313.46340.9958
H42.10290.99583.46344.1507
H52.10293.46340.99584.1507

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 122.370 Be1 O3 H5 122.370
O2 Be1 O3 164.525
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.382      
2 O -0.382      
3 O -0.382      
4 H 0.191      
5 H 0.191      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 48.128
(<r2>)1/2 6.937