return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 1A1
1 2 yes C2 1A
1 3 no D*H 1Σg

Conformer 1 (C2V)

Jump to S1C2 S1C3
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-34.356134
Energy at 298.15K 
HF Energy-34.356134
Nuclear repulsion energy24.917954
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 B3LYP/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3925 3790 47.10      
2 A1 717 692 0.90      
3 A1 634 612 142.84      
4 A1 282 273 15.09      
5 A2 238i 230i 0.00      
6 B1 339 328 73.20      
7 B2 3923 3789 104.23      
8 B2 1504 1452 339.44      
9 B2 510 492 310.64      

Unscaled Zero Point Vibrational Energy (zpe) 5797.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 5598.8 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 B3LYP/CEP-31G*
ABC
15.12709 0.22641 0.22307

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.011
O2 0.000 1.438 0.083
O3 0.000 -1.438 0.083
H4 0.000 2.029 -0.682
H5 0.000 -2.029 -0.682

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43991.43992.14442.1444
O21.43992.87610.96683.5508
O31.43992.87613.55080.9668
H42.14440.96683.55084.0588
H52.14443.55080.96684.0588

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 124.842 Be1 O3 H5 124.842
O2 Be1 O3 174.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.020      
2 O -0.378      
3 O -0.378      
4 H 0.368      
5 H 0.368      


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 -2.805 2.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.945 0.000 0.000
y 0.000 -15.490 0.000
z 0.000 0.000 -14.111
Traceless
 xyz
x -2.145 0.000 0.000
y 0.000 0.038 0.000
z 0.000 0.000 2.107
Polar
3z2-r24.214
x2-y2-1.456
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.204 0.000 0.000
y 0.000 3.651 0.000
z 0.000 0.000 2.487


<r2> (average value of r2) Å2
<r2> 43.757
(<r2>)1/2 6.615

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-34.357240
Energy at 298.15K-34.358738
HF Energy-34.357240
Nuclear repulsion energy24.925757
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 B3LYP/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3906 3772 22.10      
2 A 714 690 0.02      
3 A 626 605 68.39      
4 A 304 294 59.42      
5 A 218 210 134.54      
6 B 3905 3771 115.51      
7 B 1505 1454 328.91      
8 B 626 605 335.42      
9 B 295 285 89.20      

Unscaled Zero Point Vibrational Energy (zpe) 6050.0 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 5842.4 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 B3LYP/CEP-31G*
ABC
14.01884 0.22534 0.22500

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.013
O2 0.000 1.440 -0.057
O3 0.000 -1.440 -0.057
H4 0.605 1.974 0.478
H5 -0.605 -1.974 0.478

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.44071.44072.12212.1221
O21.44072.88000.96813.5081
O31.44072.88003.50810.9681
H42.12210.96813.50814.1290
H52.12213.50810.96814.1290

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 122.301 Be1 O3 H5 122.301
O2 Be1 O3 176.498
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.015      
2 O -0.376      
3 O -0.376      
4 H 0.369      
5 H 0.369      


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 1.935 1.935
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.887 4.931 0.000
y 4.931 -16.452 0.000
z 0.000 0.000 -15.569
Traceless
 xyz
x 1.124 4.931 0.000
y 4.931 -1.225 0.000
z 0.000 0.000 0.100
Polar
3z2-r20.201
x2-y21.566
xy4.931
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.388 0.160 0.000
y 0.160 3.621 0.000
z 0.000 0.000 2.360


<r2> (average value of r2) Å2
<r2> 43.670
(<r2>)1/2 6.608

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-34.347475
Energy at 298.15K 
HF Energy-34.347475
Nuclear repulsion energy25.075214
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 B3LYP/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σg 4106 3965 0.00      
2 Σg 762 736 0.00      
3 Σu 4102 3961 438.16      
4 Σu 1592 1538 528.23      
5 Πg 432i 418i 0.00      
5 Πg 432i 418i 0.00      
6 Πu 332 320 12.47      
6 Πu 332 320 12.47      
7 Πu 453i 437i 423.47      
7 Πu 453i 437i 423.47      

Unscaled Zero Point Vibrational Energy (zpe) 4727.3 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 4565.1 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 B3LYP/CEP-31G*
B
0.22473

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

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 1.411
O3 0.000 0.000 -1.411
H4 0.000 0.000 2.368
H5 0.000 0.000 -2.368

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41131.41132.36762.3676
O21.41132.82250.95633.7788
O31.41132.82253.77880.9563
H42.36760.95633.77884.7351
H52.36763.77880.95634.7351

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 B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.077      
2 O -0.435      
3 O -0.435      
4 H 0.397      
5 H 0.397      


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 -16.802 0.000 0.000
y 0.000 -16.802 0.000
z 0.000 0.000 -7.433
Traceless
 xyz
x -4.684 0.000 0.000
y 0.000 -4.684 0.000
z 0.000 0.000 9.369
Polar
3z2-r218.737
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 2.044 0.000 0.000
y 0.000 2.044 0.000
z 0.000 0.000 3.969


<r2> (average value of r2) Å2
<r2> 43.655
(<r2>)1/2 6.607