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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 2 no C2 1A
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-164.745521
HF Energy-164.744994
Nuclear repulsion energy49.327691
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 4167 3773 29.78      
2 A1 850 770 10.51      
3 A1 381 345 349.28      
4 A1 189 171 199.13      
5 A2 47 43 0.00      
6 B1 336 304 220.27      
7 B2 4164 3771 300.05      
8 B2 1776 1608 404.21      
9 B2 169 153 185.93      

Unscaled Zero Point Vibrational Energy (zpe) 6038.5 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 5468.5 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 HF/3-21G
ABC
60.87618 0.22891 0.22805

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 0.035
O2 0.000 1.406 0.034
O3 0.000 -1.406 0.034
H4 0.000 2.272 -0.345
H5 0.000 -2.272 -0.345

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.40601.40602.30392.3039
O21.40602.81190.94583.6978
O31.40602.81193.69780.9458
H42.30390.94583.69784.5446
H52.30393.69780.94584.5446

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 156.359 Be1 O3 H5 156.359
O2 Be1 O3 179.964
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 -0.831      
3 O -0.831      
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 -1.731 1.731
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.865 0.000 0.000
y 0.000 -9.622 0.000
z 0.000 0.000 -15.196
Traceless
 xyz
x -3.457 0.000 0.000
y 0.000 5.909 0.000
z 0.000 0.000 -2.452
Polar
3z2-r2-4.904
x2-y2-6.243
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.980 0.000 0.000
y 0.000 3.129 0.000
z 0.000 0.000 1.089


<r2> (average value of r2) Å2
<r2> 50.687
(<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 energy49.320986
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 A 4200 3804 0.00      
2 A 856 776 0.00      
3 A 330 298 153.97      
4 A 97 88 0.00      
5 A 148i 134i 545.00      
6 B 4198 3801 387.35      
7 B 1792 1623 439.64      
8 B 332 301 168.06      
9 B 133i 120i 546.28      

Unscaled Zero Point Vibrational Energy (zpe) 5761.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 5217.8 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 HF/3-21G
ABC
310.50764 0.22901 0.22884

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.001
O2 0.000 1.400 -0.000
O3 0.000 -1.400 -0.000
H4 -0.178 2.326 -0.001
H5 0.178 -2.326 -0.001

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39991.39992.33332.3333
O21.39992.79980.94353.7306
O31.39992.79983.73060.9435
H42.33330.94353.73064.6666
H52.33333.73060.94354.6666

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 169.136 Be1 O3 H5 169.136
O2 Be1 O3 179.936
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 0.848      
2 O -0.843      
3 O -0.843      
4 H 0.419      
5 H 0.419      


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 0.002 0.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.654 -2.128 0.000
y -2.128 -7.967 0.000
z 0.000 0.000 -15.832
Traceless
 xyz
x -3.755 -2.128 0.000
y -2.128 7.776 0.000
z 0.000 0.000 -4.021
Polar
3z2-r2-8.043
x2-y2-7.687
xy-2.128
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.984 -0.108 0.000
y -0.108 3.162 0.000
z 0.000 0.000 0.962


<r2> (average value of r2) Å2
<r2> 50.458
(<r2>)1/2 7.103

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 3812 0.00      
2 Σg 859 778 0.00      
3 Σu 4207 3810 403.14      
4 Σu 1796 1627 446.44      
5 Πg 64i 58i 0.00      
5 Πg 64i 58i 0.00      
6 Πu 330 299 144.65      
6 Πu 330 299 144.65      
7 Πu 150i 136i 558.09      
7 Πu 150i 136i 558.09      

Unscaled Zero Point Vibrational Energy (zpe) 5651.4 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 5117.9 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