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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-90.407884
Energy at 298.15K-90.407745
HF Energy-90.136066
Nuclear repulsion energy17.406967
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/cc-pVTZ
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' 4016 3813 148.30      
2 A' 1265 1201 98.25      
3 A' 396 376 175.89      

Unscaled Zero Point Vibrational Energy (zpe) 2838.5 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 2695.2 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/cc-pVTZ
ABC
43.43213 1.30753 1.26932

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.052 -0.382 0.000
Be2 0.052 1.029 0.000
H3 -0.619 -1.059 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.41150.9524
Be21.41152.1928
H30.95242.1928

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 135.239
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-90.406755
Energy at 298.15K 
HF Energy-90.135192
Nuclear repulsion energy17.614353
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/cc-pVTZ
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 4112 3904 235.40      
2 Σ 1325 1258 135.17      
3 Π 255i 242i 156.77      
3 Π 255i 242i 156.77      

Unscaled Zero Point Vibrational Energy (zpe) 2463.2 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 2338.8 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/cc-pVTZ
B
1.28932

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

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 -1.031
H3 0.000 0.000 1.299

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38470.9455
Be21.38472.3303
H30.94552.3303

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