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: PBE1PBE/6-31G*

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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-166.307817
Energy at 298.15K 
HF Energy-166.307817
Nuclear repulsion energy48.942545
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 PBE1PBE/6-31G*
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 3974 3776 53.08      
2 A1 744 707 6.25      
3 A1 590 561 177.34      
4 A1 272 259 6.45      
5 A2 233i 222i 0.00      
6 B1 330 314 68.56      
7 B2 3971 3774 129.33      
8 B2 1554 1476 346.92      
9 B2 456 433 334.41      

Unscaled Zero Point Vibrational Energy (zpe) 5828.6 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 5538.9 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 PBE1PBE/6-31G*
ABC
16.19524 0.22963 0.22642

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.016
O2 0.000 1.426 0.079
O3 0.000 -1.426 0.079
H4 0.000 2.033 -0.661
H5 0.000 -2.033 -0.661

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42781.42782.14252.1425
O21.42782.85280.95663.5373
O31.42782.85283.53730.9566
H42.14250.95663.53734.0653
H52.14253.53730.95664.0653

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 126.807 Be1 O3 H5 126.807
O2 Be1 O3 174.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.353      
2 O -0.593      
3 O -0.593      
4 H 0.416      
5 H 0.416      


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 -2.686 2.686
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.481 0.000 0.000
y 0.000 -14.442 0.000
z 0.000 0.000 -13.874
Traceless
 xyz
x -2.323 0.000 0.000
y 0.000 0.736 0.000
z 0.000 0.000 1.587
Polar
3z2-r23.175
x2-y2-2.039
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.880 0.000 0.000
y 0.000 3.510 0.000
z 0.000 0.000 2.117


<r2> (average value of r2) Å2
<r2> 51.118
(<r2>)1/2 7.150

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-166.308861
Energy at 298.15K-166.310315
HF Energy-166.308861
Nuclear repulsion energy48.916443
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 PBE1PBE/6-31G*
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 3948 3752 28.31      
2 A 738 701 1.94      
3 A 589 560 95.31      
4 A 288 274 52.46      
5 A 236 224 110.87      
6 B 3947 3751 135.59      
7 B 1550 1473 337.74      
8 B 581 552 372.48      
9 B 284 270 91.48      

Unscaled Zero Point Vibrational Energy (zpe) 6080.0 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 5777.8 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 PBE1PBE/6-31G*
ABC
14.65916 0.22820 0.22819

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.025
O2 0.000 1.430 -0.056
O3 0.000 -1.430 -0.056
H4 0.565 1.973 0.496
H5 -0.565 -1.973 0.496

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43001.43002.11722.1172
O21.43002.85930.95833.4930
O31.43002.85933.49300.9583
H42.11720.95833.49304.1045
H52.11723.49300.95834.1045

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 123.673 Be1 O3 H5 123.673
O2 Be1 O3 177.512
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.350      
2 O -0.592      
3 O -0.592      
4 H 0.417      
5 H 0.417      


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 1.948 1.948
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.732 4.579 0.000
y 4.579 -15.536 0.000
z 0.000 0.000 -15.049
Traceless
 xyz
x 0.560 4.579 0.000
y 4.579 -0.646 0.000
z 0.000 0.000 0.086
Polar
3z2-r20.171
x2-y20.804
xy4.579
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.035 0.185 0.000
y 0.185 3.478 0.000
z 0.000 0.000 2.036


<r2> (average value of r2) Å2
<r2> 51.104
(<r2>)1/2 7.149

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-166.301848
Energy at 298.15K 
HF Energy-166.301848
Nuclear repulsion energy49.551702
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 PBE1PBE/6-31G*
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 4168 3960 0.00      
2 Σg 799 760 0.00      
3 Σu 4162 3955 441.93      
4 Σu 1666 1584 512.99      
5 Πg 358i 340i 0.00      
5 Πg 358i 340i 0.00      
6 Πu 336 319 11.36      
6 Πu 336 319 11.36      
7 Πu 374i 355i 368.85      
7 Πu 374i 355i 368.85      

Unscaled Zero Point Vibrational Energy (zpe) 5002.0 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 4753.4 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 PBE1PBE/6-31G*
B
0.22978

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

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 1.396
O3 0.000 0.000 -1.396
H4 0.000 0.000 2.340
H5 0.000 0.000 -2.340

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39581.39582.33992.3399
O21.39582.79160.94413.7358
O31.39582.79163.73580.9441
H42.33990.94413.73584.6799
H52.33993.73580.94414.6799

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 PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.285      
2 O -0.552      
3 O -0.552      
4 H 0.410      
5 H 0.410      


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 -16.265 0.000 0.000
y 0.000 -16.265 0.000
z 0.000 0.000 -6.928
Traceless
 xyz
x -4.669 0.000 0.000
y 0.000 -4.669 0.000
z 0.000 0.000 9.337
Polar
3z2-r218.674
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 1.718 0.000 0.000
y 0.000 1.718 0.000
z 0.000 0.000 3.709


<r2> (average value of r2) Å2
<r2> 50.339
(<r2>)1/2 7.095