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

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-90.443159
Energy at 298.15K-90.442883
HF Energy-90.136297
Nuclear repulsion energy17.506438
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 QCISD(T)=FULL/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' 4044 3870 0.00      
2 A' 1286 1231 0.00      
3 A' 273 261 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2801.6 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 2680.8 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 QCISD(T)=FULL/cc-pVTZ
ABC
49.55237 1.31800 1.28385

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.048 -0.376 0.000
Be2 0.048 1.025 0.000
H3 -0.582 -1.087 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.40110.9493
Be21.40112.2032
H30.94932.2032

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 138.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at QCISD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-90.442901
Energy at 298.15K 
HF Energy-90.135428
Nuclear repulsion energy17.712043
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 QCISD(T)=FULL/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 4153 3974        
2 Σ 1344 1286        
3 Π 120i 115i        
3 Π 120i 115i        

Unscaled Zero Point Vibrational Energy (zpe) 2628.0 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 2514.7 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 QCISD(T)=FULL/cc-pVTZ
B
1.30525

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.351
Be2 0.000 0.000 -1.025
H3 0.000 0.000 1.293

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.37590.9422
Be21.37592.3181
H30.94222.3181

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