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All results from a given calculation for Be(OH)2 (Beryllium hydroxide)

using model chemistry: PBEPBE/aug-cc-pVTZ

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

Conformer 2 (C2)

Jump to S1C1
Energy calculated at PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-166.400493
Energy at 298.15K-166.401934
HF Energy-166.400493
Nuclear repulsion energy48.643229
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 PBEPBE/aug-cc-pVTZ
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 3871 3846 20.99      
2 A 725 721 1.87      
3 A 555 552 77.60      
4 A 313 311 24.40      
5 A 199 198 114.70      
6 B 3869 3844 161.81      
7 B 1497 1487 383.56      
8 B 550 546 303.59      
9 B 310 308 61.26      

Unscaled Zero Point Vibrational Energy (zpe) 5943.8 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 5905.2 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 PBEPBE/aug-cc-pVTZ
ABC
16.99811 0.22506 0.22486

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Be1 0.000 0.000 0.006
O2 0.000 1.435 -0.056
O3 0.000 -1.435 -0.056
H4 0.545 2.057 0.434
H5 -0.545 -2.057 0.434

Atom - Atom Distances (Å)
  Be1 O2 O3 H4 H5
Be11.43601.43602.17072.1707
O21.43602.86930.96143.5678
O31.43602.86933.56780.9614
H42.17070.96143.56784.2561
H52.17073.56780.96144.2561

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 128.680 Be1 O3 H5 128.680
O2 Be1 O3 175.055
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Be 0.436      
2 O -0.323      
3 O -0.323      
4 H 0.105      
5 H 0.105      


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 1.603 1.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.720 4.274 0.000
y 4.274 -16.119 0.000
z 0.000 0.000 -16.215
Traceless
 xyz
x 0.447 4.274 0.000
y 4.274 -0.152 0.000
z 0.000 0.000 -0.296
Polar
3z2-r2-0.592
x2-y20.399
xy4.274
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.473 0.043 0.000
y 0.043 4.660 0.000
z 0.000 0.000 3.475


<r2> (average value of r2) Å2
<r2> 52.420
(<r2>)1/2 7.240