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All results from a given calculation for BeOH (beryllium monohydroxide)

using model chemistry: MP2/6-31G

19 10 17 12 22

States and conformations

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

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-90.209481
Energy at 298.15K 
HF Energy-90.071368
Nuclear repulsion energy17.473985
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 MP2/6-31G
Rotational Constants (cm-1) from geometry optimized at MP2/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is Cs

Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP2/6-31G
 hartrees
Energy at 0K-90.209701
Energy at 298.15K-90.209232
HF Energy-90.071154
Nuclear repulsion energy17.311188
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 MP2/6-31G
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 4012 3839 199.09      
2 Σ 1291 1235 107.04      
3 Π 210 201 264.10      
3 Π 210 201 264.10      

Unscaled Zero Point Vibrational Energy (zpe) 2861.8 cm-1
Scaled (by 0.9568) Zero Point Vibrational Energy (zpe) 2738.1 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 MP2/6-31G
B
1.24072

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.361
Be2 0.000 0.000 -1.052
H3 0.000 0.000 1.316

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.41310.9548
Be21.41312.3679
H30.95482.3679

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