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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 yes CS 2A'
1 2 no C*V 2Σ

Conformer 1 (CS)

Jump to S1C2
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-90.293850
Energy at 298.15K-90.293597
HF Energy-90.090078
Nuclear repulsion energy17.333984
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 A' 3961 3735 159.35      
2 A' 1274 1202 92.03      
3 A' 296 279 216.80      

Unscaled Zero Point Vibrational Energy (zpe) 2765.5 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 2607.9 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*
ABC
45.90850 1.29628 1.26068

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.050 -0.381 0.000
Be2 0.050 1.032 0.000
H3 -0.605 -1.083 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.41300.9609
Be21.41302.2148
H30.96092.2148

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 136.987
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-90.293559
Energy at 298.15K 
HF Energy-90.089464
Nuclear repulsion energy17.544849
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 4080 3848 246.69      
2 Σ 1347 1270 118.49      
3 Π 105i 99i 182.89      
3 Π 105i 99i 182.89      

Unscaled Zero Point Vibrational Energy (zpe) 2609.2 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 2460.4 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 MP2/6-31G*
B
1.28125

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 0.354
Be2 0.000 0.000 -1.034
H3 0.000 0.000 1.306

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38840.9525
Be21.38842.3410
H30.95252.3410

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