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: PBEPBEultrafine/aug-cc-pVDZ

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

Conformer 2 (C2)

Jump to S1C1
Energy calculated at PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-166.350364
Energy at 298.15K-166.351704
HF Energy-166.350364
Nuclear repulsion energy48.249148
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 PBEPBEultrafine/aug-cc-pVDZ
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 3853 3830 18.64      
2 A 699 694 0.72      
3 A 564 560 75.59      
4 A 272 271 12.21      
5 A 206 205 125.56      
6 B 3852 3828 152.38      
7 B 1468 1459 367.08      
8 B 558 554 294.10      
9 B 260 259 52.57      

Unscaled Zero Point Vibrational Energy (zpe) 5866.0 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 5830.2 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
15.93635 0.22132 0.22117

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.026
O2 0.000 1.448 -0.062
O3 0.000 -1.448 -0.062
H4 0.557 2.055 0.441
H5 -0.557 -2.055 0.441

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.45071.45072.16952.1695
O21.45072.89610.96533.5828
O31.45072.89613.58280.9653
H42.16950.96533.58284.2590
H52.16953.58280.96534.2590

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 126.609 Be1 O3 H5 126.609
O2 Be1 O3 173.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be -0.062      
2 O -0.079      
3 O -0.079      
4 H 0.111      
5 H 0.111      


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 1.714 1.714
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.840 4.301 0.000
y 4.301 -16.283 0.000
z 0.000 0.000 -16.361
Traceless
 xyz
x 0.482 4.301 0.000
y 4.301 -0.183 0.000
z 0.000 0.000 -0.299
Polar
3z2-r2-0.599
x2-y20.443
xy4.301
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.415 0.057 0.000
y 0.057 4.731 0.000
z 0.000 0.000 3.420


<r2> (average value of r2) Å2
<r2> 53.166
(<r2>)1/2 7.291