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: LSDA/6-31G*

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/6-31G*
 hartrees
Energy at 0K-165.633591
Energy at 298.15K 
HF Energy-165.633591
Nuclear repulsion energy49.240078
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/6-31G*
Rotational Constants (cm-1) from geometry optimized at LSDA/6-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1 S1C3
Energy calculated at LSDA/6-31G*
 hartrees
Energy at 0K-165.636271
Energy at 298.15K-165.637657
HF Energy-165.636271
Nuclear repulsion energy49.013248
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/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 3840 3768 28.60      
2 A 743 729 1.15      
3 A 544 534 94.94      
4 A 273 268 49.96      
5 A 254 250 90.85      
6 B 3838 3766 155.94      
7 B 1571 1541 301.80      
8 B 534 524 359.75      
9 B 271 266 80.13      

Unscaled Zero Point Vibrational Energy (zpe) 5933.5 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 5822.5 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 LSDA/6-31G*
ABC
14.96360 0.23016 0.23002

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.018
O2 0.000 1.421 -0.058
O3 0.000 -1.421 -0.058
H4 0.549 1.992 0.498
H5 -0.549 -1.992 0.498

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42201.42202.12992.1299
O21.42202.84290.96763.5019
O31.42202.84293.50190.9676
H42.12990.96763.50194.1332
H52.12993.50190.96764.1332

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 124.991 Be1 O3 H5 124.991
O2 Be1 O3 176.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.227      
2 O -0.528      
3 O -0.528      
4 H 0.414      
5 H 0.414      


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 1.980 1.980
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.078 4.545 0.000
y 4.545 -14.293 0.000
z 0.000 0.000 -15.292
Traceless
 xyz
x -0.285 4.545 0.000
y 4.545 0.892 0.000
z 0.000 0.000 -0.607
Polar
3z2-r2-1.214
x2-y2-0.784
xy4.545
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.127 0.191 0.000
y 0.191 3.787 0.000
z 0.000 0.000 2.139


<r2> (average value of r2) Å2
<r2> 50.718
(<r2>)1/2 7.122

Conformer 3 (D*H)

Jump to S1C1 S1C2
Energy calculated at LSDA/6-31G*
 hartrees
Energy at 0K-165.630740
Energy at 298.15K 
HF Energy-165.630740
Nuclear repulsion energy49.583558
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/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 4046 3971 0.00      
2 Σg 798 783 0.00      
3 Σu 4041 3965 465.73      
4 Σu 1681 1650 454.28      
5 Πg 317i 311i 0.00      
5 Πg 317i 311i 0.00      
6 Πu 318 312 3.71      
6 Πu 318 312 3.71      
7 Πu 339i 333i 352.51      
7 Πu 339i 333i 352.51      

Unscaled Zero Point Vibrational Energy (zpe) 4945.4 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 4852.9 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 LSDA/6-31G*
B
0.23100

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/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 1.391
O3 0.000 0.000 -1.391
H4 0.000 0.000 2.345
H5 0.000 0.000 -2.345

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.39101.39102.34482.3448
O21.39102.78200.95383.7357
O31.39102.78203.73570.9538
H42.34480.95383.73574.6895
H52.34483.73570.95384.6895

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/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.153      
2 O -0.483      
3 O -0.483      
4 H 0.406      
5 H 0.406      


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 -16.494 0.000 0.000
y 0.000 -16.494 0.000
z 0.000 0.000 -6.070
Traceless
 xyz
x -5.212 0.000 0.000
y 0.000 -5.212 0.000
z 0.000 0.000 10.424
Polar
3z2-r220.848
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 1.803 0.000 0.000
y 0.000 1.803 0.000
z 0.000 0.000 3.997


<r2> (average value of r2) Å2
<r2> 50.085
(<r2>)1/2 7.077