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: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
1 2 no C*V 2Σ

Conformer 1 (CS)

Jump to S1C2
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-90.539842
Energy at 298.15K-90.539457
HF Energy-90.539842
Nuclear repulsion energy17.452471
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 B3PW91/6-31+G**
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' 4080 3917 159.56      
2 A' 1268 1218 144.09      
3 A' 197 189 197.92      

Unscaled Zero Point Vibrational Energy (zpe) 2772.3 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 2661.7 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 B3PW91/6-31+G**
ABC
80.35189 1.29123 1.27080

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.038 -0.369 0.000
Be2 0.038 1.034 0.000
H3 -0.461 -1.179 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.40310.9513
Be21.40312.2684
H30.95132.2684

picture of beryllium monohydroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Be2 O1 H3 148.350
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.608      
2 Be 0.228      
3 H 0.379      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.951 -0.818 0.000 1.255
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.462 1.449 0.000
y 1.449 -11.718 0.000
z 0.000 0.000 -12.143
Traceless
 xyz
x 0.469 1.449 0.000
y 1.449 0.084 0.000
z 0.000 0.000 -0.553
Polar
3z2-r2-1.106
x2-y20.256
xy1.449
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.808 0.034 0.000
y 0.034 4.437 0.001
z 0.000 0.001 4.650


<r2> (average value of r2) Å2
<r2> 14.340
(<r2>)1/2 3.787

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-90.539794
Energy at 298.15K-90.538939
HF Energy-90.539794
Nuclear repulsion energy17.556945
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 B3PW91/6-31+G**
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 4132 3967 205.47      
2 Σ 1305 1253 168.21      
3 Π 90 87 173.71      
3 Π 90 87 173.66      

Unscaled Zero Point Vibrational Energy (zpe) 2808.5 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 2696.4 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 B3PW91/6-31+G**
B
1.28029

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.355
Be2 0.000 0.000 -1.035
H3 0.000 0.000 1.302

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38980.9477
Be21.38982.3375
H30.94772.3375

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 B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.477      
2 Be 0.076      
3 H 0.401      


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 1.233 1.233
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.115 0.000 0.000
y 0.000 -12.115 0.000
z 0.000 0.000 -10.873
Traceless
 xyz
x -0.621 0.000 0.000
y 0.000 -0.621 0.000
z 0.000 0.000 1.242
Polar
3z2-r22.484
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 4.647 0.000 0.000
y 0.000 4.649 0.000
z 0.000 0.000 4.441


<r2> (average value of r2) Å2
<r2> 14.296
(<r2>)1/2 3.781