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

using model chemistry: QCISD(T)/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)/cc-pVTZ
 hartrees
Energy at 0K-90.421189
Energy at 298.15K-90.421047
HF Energy-90.136094
Nuclear repulsion energy17.421165
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)/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' 4006 3800        
2 A' 1267 1202        
3 A' 392 372        

Unscaled Zero Point Vibrational Energy (zpe) 2832.7 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 2687.1 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 QCISD(T)/cc-pVTZ
ABC
42.23554 1.31174 1.27223

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.052 -0.383 0.000
Be2 0.052 1.028 0.000
H3 -0.627 -1.050 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.41030.9523
Be21.41032.1858
H30.95232.1858

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 134.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-90.419966
Energy at 298.15K 
HF Energy-90.135247
Nuclear repulsion energy17.636781
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)/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 4114 3903        
2 Σ 1330 1262        
3 Π 264i 251i        
3 Π 264i 251i        

Unscaled Zero Point Vibrational Energy (zpe) 2457.9 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 2331.6 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)/cc-pVTZ
B
1.29327

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/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 -1.030
H3 0.000 0.000 1.298

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38250.9449
Be21.38252.3274
H30.94492.3274

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