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: B1B95/6-31G(2df,p)

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

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-166.468892
Energy at 298.15K 
HF Energy-166.468892
Nuclear repulsion energy49.293300
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 B1B95/6-31G(2df,p)
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 4058 3886 59.92      
2 A1 761 729 8.79      
3 A1 577 553 149.87      
4 A1 302 290 6.83      
5 A2 216i 207i 0.00      
6 B1 351 336 65.37      
7 B2 4055 3884 160.83      
8 B2 1573 1506 332.72      
9 B2 461 442 288.71      

Unscaled Zero Point Vibrational Energy (zpe) 5960.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 5708.7 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 B1B95/6-31G(2df,p)
ABC
17.95834 0.23233 0.22936

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.014
O2 0.000 1.415 0.075
O3 0.000 -1.415 0.075
H4 0.000 2.052 -0.628
H5 0.000 -2.052 -0.628

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41651.41652.15012.1501
O21.41652.83040.94833.5378
O31.41652.83043.53780.9483
H42.15010.94833.53784.1043
H52.15013.53780.94834.1043

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 129.727 Be1 O3 H5 129.727
O2 Be1 O3 175.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be -0.110      
2 O -0.256      
3 O -0.256      
4 H 0.312      
5 H 0.312      


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 -2.328 2.328
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.385 0.000 0.000
y 0.000 -13.976 0.000
z 0.000 0.000 -14.073
Traceless
 xyz
x -2.360 0.000 0.000
y 0.000 1.253 0.000
z 0.000 0.000 1.107
Polar
3z2-r22.214
x2-y2-2.409
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.355 0.000 0.000
y 0.000 3.561 0.000
z 0.000 0.000 2.496


<r2> (average value of r2) Å2
<r2> 50.597
(<r2>)1/2 7.113

Conformer 2 (C2)

Jump to S1C1
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-166.469722
Energy at 298.15K-166.471229
HF Energy-166.469722
Nuclear repulsion energy49.269792
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 B1B95/6-31G(2df,p)
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 4040 3869 30.16      
2 A 756 724 3.00      
3 A 573 549 78.60      
4 A 318 305 39.75      
5 A 221 211 111.30      
6 B 4038 3867 174.74      
7 B 1571 1504 324.81      
8 B 567 543 333.63      
9 B 312 299 75.50      

Unscaled Zero Point Vibrational Energy (zpe) 6197.2 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 5935.0 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 B1B95/6-31G(2df,p)
ABC
16.50949 0.23103 0.23085

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.017
O2 0.000 1.418 -0.052
O3 0.000 -1.418 -0.052
H4 0.549 2.006 0.451
H5 -0.549 -2.006 0.451

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41821.41822.13192.1319
O21.41822.83560.94953.5040
O31.41822.83563.50400.9495
H42.13190.94953.50404.1597
H52.13193.50400.94954.1597

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 127.304 Be1 O3 H5 127.304
O2 Be1 O3 177.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be -0.100      
2 O -0.261      
3 O -0.261      
4 H 0.311      
5 H 0.311      


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 1.641 1.641
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.771 4.271 0.000
y 4.271 -14.783 0.000
z 0.000 0.000 -15.214
Traceless
 xyz
x 0.228 4.271 0.000
y 4.271 0.209 0.000
z 0.000 0.000 -0.437
Polar
3z2-r2-0.875
x2-y20.013
xy4.271
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.454 0.159 0.000
y 0.159 3.537 0.000
z 0.000 0.000 2.442


<r2> (average value of r2) Å2
<r2> 50.587
(<r2>)1/2 7.112