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

using model chemistry: MP4/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 MP4/cc-pVTZ
 hartrees
Energy at 0K-90.422161
Energy at 298.15K-90.422022
HF Energy-90.136017
Nuclear repulsion energy17.400085
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 MP4/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' 3991 3868 0.00      
2 A' 1261 1223 0.00      
3 A' 397 384 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2824.5 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 2737.5 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 MP4/cc-pVTZ
ABC
41.40651 1.30951 1.26936

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.053 -0.384 0.000
Be2 0.053 1.029 0.000
H3 -0.633 -1.046 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.41220.9534
Be21.41222.1848
H30.95342.1848

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 133.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at MP4/cc-pVTZ
 hartrees
Energy at 0K-90.420881
Energy at 298.15K 
HF Energy-90.135184
Nuclear repulsion energy17.618815
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 MP4/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 4100 3974        
2 Σ 1325 1284        
3 Π 267i 259i        
3 Π 267i 259i        

Unscaled Zero Point Vibrational Energy (zpe) 2445.5 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 2370.1 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 MP4/cc-pVTZ
B
1.29060

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/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
O11.38390.9458
Be21.38392.3297
H30.94582.3297

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