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All results from a given calculation for BH (Boron monohydride)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
2 1 yes C*V 3Π

State 1 (1Σ)

Jump to S2C1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-25.014381
Energy at 298.15K-25.013154
HF Energy-24.976703
Nuclear repulsion energy2.124867
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 MP2/3-21G*
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 2345 2231 356.53      

Unscaled Zero Point Vibrational Energy (zpe) 1172.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 1115.3 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 MP2/3-21G*
B
11.77534

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.208
H2 0.000 0.000 -1.038

Atom - Atom Distances (Å)
  B1 H2
B11.2452
H21.2452

picture of Boron monohydride state 1 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

State 2 (3Π)

Jump to S1C1
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-24.989027
Energy at 298.15K-24.987800
HF Energy-24.966529
Nuclear repulsion energy2.215974
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 MP2/3-21G*
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 2719 2587 10.55      

Unscaled Zero Point Vibrational Energy (zpe) 1359.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 1293.2 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 MP2/3-21G*
B
12.80676

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.199
H2 0.000 0.000 -0.995

Atom - Atom Distances (Å)
  B1 H2
B11.1940
H21.1940

picture of Boron monohydride state 2 conformation 1
More geometry information
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability