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

using model chemistry: CID/3-21G

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 CID/3-21G
 hartrees
Energy at 0K-89.735803
Energy at 298.15K 
HF Energy-89.604671
Nuclear repulsion energy17.572459
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 CID/3-21G
Rotational Constants (cm-1) from geometry optimized at CID/3-21G
See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-89.737415
Energy at 298.15K-89.737087
HF Energy-89.606354
Nuclear repulsion energy17.426409
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 CID/3-21G
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 3930 3661 170.19      
2 Σ 1432 1334 81.80      
3 Π 258 240 237.80      
3 Π 258 240 237.80      

Unscaled Zero Point Vibrational Energy (zpe) 2938.7 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 2737.7 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 CID/3-21G
B
1.26623

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

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 -1.040
H3 0.000 0.000 1.318

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.39590.9626
Be21.39592.3585
H30.96262.3585

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