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: HF/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C2 1A

Conformer 1 (C2V)

Jump to S1C2
Vibrational Frequencies calculated at HF/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at HF/aug-cc-pVQZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2)

Jump to S1C1
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-165.738095
Energy at 298.15K-165.739538
HF Energy-165.738095
Nuclear repulsion energy49.502994
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 HF/aug-cc-pVQZ
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 4289 3897 33.56      
2 A 778 706 2.51      
3 A 548 498 128.67      
4 A 334 304 51.58      
5 A 167 152 156.04      
6 B 4287 3895 251.39      
7 B 1595 1449 481.98      
8 B 545 495 389.23      
9 B 322 292 90.18      

Unscaled Zero Point Vibrational Energy (zpe) 6432.7 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 5844.1 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 HF/aug-cc-pVQZ
ABC
20.57897 0.23142 0.23105

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 -0.012
O2 0.000 1.413 -0.045
O3 0.000 -1.413 -0.045
H4 0.513 2.062 0.385
H5 -0.513 -2.062 0.385

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.41331.41332.16172.1617
O21.41332.82580.93263.5388
O31.41332.82583.53880.9326
H42.16170.93263.53884.2497
H52.16173.53880.93264.2497

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 133.237 Be1 O3 H5 133.237
O2 Be1 O3 177.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 1.191      
2 O -0.907      
3 O -0.907      
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 1.559 1.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.995 4.436 0.000
y 4.436 -15.699 0.000
z 0.000 0.000 -15.594
Traceless
 xyz
x 0.652 4.436 0.000
y 4.436 -0.405 0.000
z 0.000 0.000 -0.247
Polar
3z2-r2-0.494
x2-y20.704
xy4.436
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.680 0.069 0.000
y 0.069 3.403 0.000
z 0.000 0.000 2.670


<r2> (average value of r2) Å2
<r2> 50.936
(<r2>)1/2 7.137