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: M06-2X/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

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at M06-2X/6-31G**
 hartrees
Energy at 0K-166.451789
Energy at 298.15K-166.452991
HF Energy-166.451789
Nuclear repulsion energy49.057397
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 M06-2X/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 4073 3871 63.51      
2 A1 758 721 3.95      
3 A1 582 553 194.95      
4 A1 299 284 8.17      
5 A2 74 71 0.00      
6 B1 337 320 65.24      
7 B2 4071 3869 163.11      
8 B2 1580 1502 379.74      
9 B2 466 443 318.21      

Unscaled Zero Point Vibrational Energy (zpe) 6120.5 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 5816.9 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 M06-2X/6-31G**
ABC
17.74801 0.23021 0.22727

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.010
O2 0.000 1.422 0.076
O3 0.000 -1.422 0.076
H4 0.000 2.063 -0.630
H5 0.000 -2.063 -0.630

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42311.42312.15972.1597
O21.42312.84320.95373.5550
O31.42312.84323.55500.9537
H42.15970.95373.55504.1250
H52.15973.55500.95374.1250

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 129.573 Be1 O3 H5 129.573
O2 Be1 O3 174.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.365      
2 O -0.510      
3 O -0.510      
4 H 0.328      
5 H 0.328      


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 -2.636 2.636
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.355 0.000 0.000
y 0.000 -13.864 0.000
z 0.000 0.000 -14.035
Traceless
 xyz
x -2.405 0.000 0.000
y 0.000 1.330 0.000
z 0.000 0.000 1.075
Polar
3z2-r22.149
x2-y2-2.490
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.781 0.000 0.000
y 0.000 3.474 0.000
z 0.000 0.000 2.034


<r2> (average value of r2) Å2
<r2> 50.944
(<r2>)1/2 7.138

Conformer 2 (C2)

Jump to S1C1
Energy calculated at M06-2X/6-31G**
 hartrees
Energy at 0K-166.452802
Energy at 298.15K-166.454202
HF Energy-166.452802
Nuclear repulsion energy49.027598
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 M06-2X/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 4035 3835 30.53      
2 A 753 715 0.75      
3 A 546 519 112.54      
4 A 291 277 26.11      
5 A 224 213 145.44      
6 B 4033 3833 176.36      
7 B 1576 1498 369.97      
8 B 544 517 365.57      
9 B 280 266 92.52      

Unscaled Zero Point Vibrational Energy (zpe) 6141.0 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 5836.4 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 M06-2X/6-31G**
ABC
15.94408 0.22902 0.22873

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.014
O2 0.000 1.425 -0.053
O3 0.000 -1.425 -0.053
H4 0.567 2.006 0.451
H5 -0.567 -2.006 0.451

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.42541.42542.13542.1354
O21.42542.84970.95533.5133
O31.42542.84973.51330.9553
H42.13540.95533.51334.1684
H52.13543.51330.95534.1684

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 126.387 Be1 O3 H5 126.387
O2 Be1 O3 176.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.365      
2 O -0.510      
3 O -0.510      
4 H 0.328      
5 H 0.328      


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 1.861 1.861
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.622 4.687 0.000
y 4.687 -14.923 0.000
z 0.000 0.000 -15.197
Traceless
 xyz
x 0.438 4.687 0.000
y 4.687 -0.013 0.000
z 0.000 0.000 -0.425
Polar
3z2-r2-0.850
x2-y20.301
xy4.687
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.960 0.223 0.000
y 0.223 3.438 0.000
z 0.000 0.000 1.929


<r2> (average value of r2) Å2
<r2> 50.937
(<r2>)1/2 7.137