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 BeOH (beryllium monohydroxide)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes C*V 2Σ

Conformer 1 (CS)

Jump to S1C2
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-89.285159
Energy at 298.15K 
HF Energy-89.285159
Nuclear repulsion energy18.188932
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 BLYP/STO-3G
Rotational Constants (cm-1) from geometry optimized at BLYP/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-89.289277
Energy at 298.15K-89.289067
HF Energy-89.289277
Nuclear repulsion energy17.796131
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 BLYP/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3912 3619 34.23      
2 Σ 1549 1433 27.48      
3 Π 338 313 82.96      
3 Π 338 313 82.96      

Unscaled Zero Point Vibrational Energy (zpe) 3068.7 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 2839.1 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 BLYP/STO-3G
B
1.35626

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.334
Be2 0.000 0.000 -1.002
H3 0.000 0.000 1.337

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.33631.0033
Be21.33632.3396
H31.00332.3396

picture of beryllium monohydroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be2 O1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.264      
2 Be 0.012      
3 H 0.252      


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 2.498 2.498
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.123 0.000 0.000
y 0.000 -10.123 0.000
z 0.000 0.000 -9.518
Traceless
 xyz
x -0.303 0.000 0.000
y 0.000 -0.303 0.000
z 0.000 0.000 0.605
Polar
3z2-r21.211
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.507 0.000 0.000
y 0.000 1.507 0.000
z 0.000 0.000 2.274


<r2> (average value of r2) Å2
<r2> 12.896
(<r2>)1/2 3.591