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

using model chemistry: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2 1A
1 3 no D*H 1Σg

Conformer 1 (C2V)

Jump to S1C2 S1C3
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-164.734866
Energy at 298.15K 
HF Energy-164.734866
Nuclear repulsion energy49.263821
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 LSDA/3-21G
Rotational Constants (cm-1) from geometry optimized at LSDA/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-164.736151
Energy at 298.15K-164.737159
HF Energy-164.736151
Nuclear repulsion energy48.855848
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 LSDA/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 3737 3676 24.63      
2 A 811 798 11.02      
3 A 430 423 199.83      
4 A 250 246 25.04      
5 A 156 153 25.31      
6 B 3735 3674 186.34      
7 B 1712 1684 217.22      
8 B 357 351 315.50      
9 B 270 266 147.45      

Unscaled Zero Point Vibrational Energy (zpe) 5729.0 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 5635.1 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 LSDA/3-21G
ABC
21.96768 0.22867 0.22709

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.060
O2 0.000 1.416 -0.051
O3 0.000 -1.416 -0.051
H4 0.269 2.160 0.524
H5 -0.269 -2.160 0.524

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41631.41632.25402.2540
O21.41632.83260.97813.6325
O31.41632.83263.63250.9781
H42.25400.97813.63254.3541
H52.25403.63250.97814.3541

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 139.856 Be1 O3 H5 139.856
O2 Be1 O3 179.273
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.402      
2 O -0.584      
3 O -0.584      
4 H 0.384      
5 H 0.384      


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 2.235 2.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.425 2.729 0.000
y 2.729 -10.521 0.000
z 0.000 0.000 -15.280
Traceless
 xyz
x -3.525 2.729 0.000
y 2.729 5.332 0.000
z 0.000 0.000 -1.807
Polar
3z2-r2-3.614
x2-y2-5.904
xy2.729
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.536 0.137 0.000
y 0.137 3.974 0.000
z 0.000 0.000 1.713


<r2> (average value of r2) Å2
<r2> 50.969
(<r2>)1/2 7.139

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-164.734564
Energy at 298.15K 
HF Energy-164.734564
Nuclear repulsion energy49.254475
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 LSDA/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 3864 3801 0.00      
2 Σg 831 817 0.00      
3 Σu 3860 3797 407.58      
4 Σu 1765 1736 281.61      
5 Πg 179i 176i 0.00      
5 Πg 179i 176i 0.00      
6 Πu 300 295 27.98      
6 Πu 300 295 27.98      
7 Πu 264i 259i 455.35      
7 Πu 264i 259i 455.35      

Unscaled Zero Point Vibrational Energy (zpe) 5016.9 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 4934.6 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 LSDA/3-21G
B
0.22861

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/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 1.397
O3 0.000 0.000 -1.397
H4 0.000 0.000 2.365
H5 0.000 0.000 -2.365

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39741.39742.36532.3653
O21.39742.79470.96793.7626
O31.39742.79473.76260.9679
H42.36530.96793.76264.7306
H52.36533.76260.96794.7306

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 LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.429      
2 O -0.606      
3 O -0.606      
4 H 0.391      
5 H 0.391      


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 -16.630 0.000 0.000
y 0.000 -16.630 0.000
z 0.000 0.000 -5.033
Traceless
 xyz
x -5.799 0.000 0.000
y 0.000 -5.799 0.000
z 0.000 0.000 11.597
Polar
3z2-r223.194
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 1.352 0.000 0.000
y 0.000 1.352 0.000
z 0.000 0.000 4.041


<r2> (average value of r2) Å2
<r2> 50.403
(<r2>)1/2 7.100