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

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-90.340028
Energy at 298.15K-90.339908
HF Energy-90.111285
Nuclear repulsion energy17.095936
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/aug-cc-pVDZ
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' 3970 3808 125.70      
2 A' 1175 1127 117.28      
3 A' 424 406 166.19      

Unscaled Zero Point Vibrational Energy (zpe) 2784.4 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 2670.2 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/aug-cc-pVDZ
ABC
39.38201 1.25710 1.21821

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.054 -0.394 0.000
Be2 0.054 1.050 0.000
H3 -0.648 -1.047 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.44440.9588
Be21.44442.2119
H30.95882.2119

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 132.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-90.338242
Energy at 298.15K 
HF Energy-90.109719
Nuclear repulsion energy17.322965
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/aug-cc-pVDZ
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 4086 3919 216.34      
2 Σ 1244 1193 171.67      
3 Π 342i 328i 151.43      
3 Π 342i 328i 151.43      

Unscaled Zero Point Vibrational Energy (zpe) 2323.8 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 2228.5 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/aug-cc-pVDZ
B
1.24018

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.362
Be2 0.000 0.000 -1.052
H3 0.000 0.000 1.313

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.41410.9507
Be21.41412.3648
H30.95072.3648

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