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

using model chemistry: MP2=FULL/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=FULL/6-31G*
 hartrees
Energy at 0K-90.300774
Energy at 298.15K-90.300314
HF Energy-90.090054
Nuclear repulsion energy17.426515
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=FULL/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 A' 4002 3771 185.39      
2 A' 1301 1226 97.02      
3 A' 149 140 217.95      

Unscaled Zero Point Vibrational Energy (zpe) 2725.6 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 2568.0 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=FULL/6-31G*
ABC
66.53673 1.29664 1.27185

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.042 -0.371 0.000
Be2 0.042 1.032 0.000
H3 -0.505 -1.157 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.40310.9579
Be21.40312.2566
H30.95792.2566

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 145.150
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP2=FULL/6-31G*
 hartrees
Energy at 0K-90.300778
Energy at 298.15K-90.299941
HF Energy-90.089520
Nuclear repulsion energy17.581224
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=FULL/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 4081 3845 247.38      
2 Σ 1352 1274 117.77      
3 Π 95 90 182.12      
3 Π 95 90 182.12      

Unscaled Zero Point Vibrational Energy (zpe) 2812.0 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 2649.5 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=FULL/6-31G*
B
1.28783

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.353
Be2 0.000 0.000 -1.032
H3 0.000 0.000 1.305

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38450.9525
Be21.38452.3370
H30.95252.3370

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