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

using model chemistry: QCISD/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/aug-cc-pVTZ
 hartrees
Energy at 0K-90.419257
Energy at 298.15K-90.419083
HF Energy-90.138554
Nuclear repulsion energy17.439771
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/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' 4038 3886 129.14      
2 A' 1263 1216 122.57      
3 A' 362 348 169.68      

Unscaled Zero Point Vibrational Energy (zpe) 2831.4 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 2724.9 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/aug-cc-pVTZ
ABC
49.30617 1.30575 1.27206

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.049 -0.379 0.000
Be2 0.049 1.029 0.000
H3 -0.583 -1.088 0.000

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.40820.9499
Be21.40822.2100
H30.94992.2100

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 138.343
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at QCISD/aug-cc-pVTZ
 hartrees
Energy at 0K-90.418475
Energy at 298.15K 
HF Energy-90.137872
Nuclear repulsion energy17.626034
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/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 4130 3975 201.37      
2 Σ 1317 1268 163.35      
3 Π 228i 219i 149.53      
3 Π 228i 219i 149.53      

Unscaled Zero Point Vibrational Energy (zpe) 2495.8 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 2402.0 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/aug-cc-pVTZ
B
1.29042

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-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 1.297

Atom - Atom Distances (Å)
  O1 Be2 H3
O11.38430.9440
Be21.38432.3283
H30.94402.3283

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