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

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
1 3 no D*H 1Σg

Conformer 1 (C2V)

Jump to S1C2 S1C3
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-164.744994
Energy at 298.15K-164.745510
HF Energy-164.744994
Nuclear repulsion energy49.332454
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/3-21G*
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 4168 3762 28.69      
2 A1 850 768 9.88      
3 A1 378 341 345.28      
4 A1 186 168 208.77      
5 A2 49 45 0.00      
6 B1 335 303 212.85      
7 B2 4165 3760 303.36      
8 B2 1776 1603 405.55      
9 B2 166 150 179.46      

Unscaled Zero Point Vibrational Energy (zpe) 6037.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 5449.3 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/3-21G*
ABC
63.61984 0.22889 0.22807

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.032
O2 0.000 1.406 0.034
O3 0.000 -1.406 0.034
H4 0.000 2.275 -0.338
H5 0.000 -2.275 -0.338

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40571.40572.30522.3052
O21.40572.81140.94583.6998
O31.40572.81143.69980.9458
H42.30520.94583.69984.5507
H52.30523.69980.94584.5507

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 156.776 Be1 O3 H5 156.776
O2 Be1 O3 179.846
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.834      
2 O -0.832      
3 O -0.832      
4 H 0.415      
5 H 0.415      


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 -1.708 1.708
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.864 0.000 0.000
y 0.000 -9.536 0.000
z 0.000 0.000 -15.224
Traceless
 xyz
x -3.484 0.000 0.000
y 0.000 6.008 0.000
z 0.000 0.000 -2.524
Polar
3z2-r2-5.049
x2-y2-6.328
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.979 0.000 0.000
y 0.000 3.132 0.000
z 0.000 0.000 1.084


<r2> (average value of r2) Å2
<r2> 50.679
(<r2>)1/2 7.119

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-164.744993
Energy at 298.15K 
HF Energy-164.744993
Nuclear repulsion energy49.320983
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/3-21G*
Rotational Constants (cm-1) from geometry optimized at HF/3-21G*
ABC
63.61984 0.22889 0.22807

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-164.744786
Energy at 298.15K 
HF Energy-164.744786
Nuclear repulsion energy49.503812
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/3-21G*
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 4210 3800 0.00      
2 Σg 859 775 0.00      
3 Σu 4207 3797 403.14      
4 Σu 1796 1621 446.44      
5 Πg 64i 58i 0.00      
5 Πg 64i 58i 0.00      
6 Πu 330 298 144.65      
6 Πu 330 298 144.65      
7 Πu 150i 136i 558.09      
7 Πu 150i 136i 558.09      

Unscaled Zero Point Vibrational Energy (zpe) 5651.4 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 5101.0 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 HF/3-21G*
B
0.22914

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

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 1.398
O3 0.000 0.000 -1.398
H4 0.000 0.000 2.341
H5 0.000 0.000 -2.341

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39801.39802.34092.3409
O21.39802.79600.94293.7389
O31.39802.79603.73890.9429
H42.34090.94293.73894.6818
H52.34093.73890.94294.6818

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/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.851      
2 O -0.846      
3 O -0.846      
4 H 0.420      
5 H 0.420      


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 -15.825 0.000 0.000
y 0.000 -15.825 0.000
z 0.000 0.000 -7.511
Traceless
 xyz
x -4.157 0.000 0.000
y 0.000 -4.157 0.000
z 0.000 0.000 8.314
Polar
3z2-r216.628
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 0.955 0.000 0.000
y 0.000 0.955 0.000
z 0.000 0.000 3.168


<r2> (average value of r2) Å2
<r2> 50.384
(<r2>)1/2 7.098