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

using model chemistry: QCISD(T)/aug-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)/aug-cc-pVTZ
 hartrees
Energy at 0K-90.429286
Energy at 298.15K-90.429094
HF Energy-90.138400
Nuclear repulsion energy17.400536
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)/aug-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' 4000 3867        
2 A' 1253 1211        
3 A' 346 334        

Unscaled Zero Point Vibrational Energy (zpe) 2798.9 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 2706.0 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)/aug-cc-pVTZ
ABC
48.38246 1.30089 1.26683

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.049 -0.380 0.000
Be2 0.049 1.031 0.000
H3 -0.588 -1.088 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.41120.9525
Be21.41122.2129
H30.95252.2129

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 138.015
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-90.428505
Energy at 298.15K 
HF Energy-90.137700
Nuclear repulsion energy17.587441
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)/aug-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 4089 3953        
2 Σ 1309 1265        
3 Π 215i 208i        
3 Π 215i 208i        

Unscaled Zero Point Vibrational Energy (zpe) 2484.2 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 2401.7 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)/aug-cc-pVTZ
B
1.28551

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

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 -1.033
H3 0.000 0.000 1.301

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38680.9467
Be21.38682.3335
H30.94672.3335

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