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

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes D*H 1Σg

Conformer 1 (C2V)

Jump to S1C2 S1C3
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-33.682182
Energy at 298.15K 
HF Energy-33.682182
Nuclear repulsion energy25.520593
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 HF/CEP-121G
Rotational Constants (cm-1) from geometry optimized at HF/CEP-121G
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-33.682189
Energy at 298.15K 
HF Energy-33.682189
Nuclear repulsion energy25.517272
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 HF/CEP-121G
Rotational Constants (cm-1) from geometry optimized at HF/CEP-121G
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-33.682190
Energy at 298.15K-33.683830
HF Energy-33.682190
Nuclear repulsion energy25.518894
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 HF/CEP-121G
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 4368 3986 0.00      
2 Σg 794 724 0.00      
3 Σu 4367 3985 414.18      
4 Σu 1635 1492 482.05      
5 Πg 354 323 0.00      
5 Πg 354 323 0.00      
6 Πu 460 420 539.01      
6 Πu 460 420 539.01      
7 Πu 322 294 327.39      
7 Πu 322 294 327.39      

Unscaled Zero Point Vibrational Energy (zpe) 6718.0 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 6130.1 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 HF/CEP-121G
B
0.23168

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

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 1.391
O3 0.000 0.000 -1.391
H4 0.000 0.000 2.324
H5 0.000 0.000 -2.324

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39081.39082.32402.3240
O21.39082.78150.93333.7148
O31.39082.78153.71480.9333
H42.32400.93333.71484.6481
H52.32403.71480.93334.6481

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
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.987      
2 O -0.961      
3 O -0.961      
4 H 0.468      
5 H 0.468      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.572 0.000 0.000
y 0.000 -16.572 0.000
z 0.000 0.000 -8.534
Traceless
 xyz
x -4.019 0.000 0.000
y 0.000 -4.019 0.000
z 0.000 0.000 8.038
Polar
3z2-r216.077
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.238 0.000 0.000
y 0.000 1.238 0.000
z 0.000 0.000 3.095


<r2> (average value of r2) Å2
<r2> 42.690
(<r2>)1/2 6.534