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

using model chemistry: MP2/CEP-31G

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 MP2/CEP-31G
 hartrees
Energy at 0K-17.419376
Energy at 298.15K-17.419282
HF Energy-17.296328
Nuclear repulsion energy8.207776
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/CEP-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 4065 3928 182.12      
2 Σ 1244 1202 120.54      
3 Π 363 351 258.81      
3 Π 363 351 258.81      

Unscaled Zero Point Vibrational Energy (zpe) 3017.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 2915.8 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/CEP-31G
B
1.22660

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.363
Be2 0.000 0.000 -1.058
H3 0.000 0.000 1.327

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.42060.9639
Be21.42062.3845
H30.96392.3845

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 180.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-17.419376
Energy at 298.15K-17.419282
HF Energy-17.296328
Nuclear repulsion energy8.207776
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/CEP-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 4065 3928 182.11      
2 Σ 1244 1202 120.54      
3 Π 363 351 258.81      
3 Π 363 351 258.81      

Unscaled Zero Point Vibrational Energy (zpe) 3017.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 2915.8 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/CEP-31G
B
1.22660

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.363
Be2 0.000 0.000 -1.058
H3 0.000 0.000 1.327

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.42060.9639
Be21.42062.3845
H30.96392.3845

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