return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B2PLYP/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 B2PLYP/3-21G
 hartrees
Energy at 0K-25.100518
Energy at 298.15K-25.099291
HF Energy-25.086789
Nuclear repulsion energy2.125591
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 B2PLYP/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 2331 2331 348.49      

Unscaled Zero Point Vibrational Energy (zpe) 1165.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1165.7 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 B2PLYP/3-21G
B
11.78337

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.207
H2 0.000 0.000 -1.037

Atom - Atom Distances (Å)
  B1 H2
B11.2448
H21.2448

picture of Boron monohydride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.080      
2 H -0.080      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.416 1.416
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.516 0.000 0.000
y 0.000 -6.516 0.000
z 0.000 0.000 -10.419
Traceless
 xyz
x 1.952 0.000 0.000
y 0.000 1.952 0.000
z 0.000 0.000 -3.904
Polar
3z2-r2-7.807
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.523 0.000 0.000
y 0.000 2.523 0.000
z 0.000 0.000 2.559


<r2> (average value of r2) Å2
<r2> 6.173
(<r2>)1/2 2.485

State 2 (3Π)

Jump to S1C1
Energy calculated at B2PLYP/3-21G
 hartrees
Energy at 0K-25.063358
Energy at 298.15K-25.062131
HF Energy-25.055615
Nuclear repulsion energy2.212155
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 B2PLYP/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 2664 2664 6.61      

Unscaled Zero Point Vibrational Energy (zpe) 1332.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1332.0 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 B2PLYP/3-21G
B
12.76265

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/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 -0.997

Atom - Atom Distances (Å)
  B1 H2
B11.1961
H21.1961

picture of Boron monohydride state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.039      
2 H 0.039      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.181 0.181
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -6.067 0.000 0.000
y 0.000 -9.084 0.000
z 0.000 0.000 -7.450
Traceless
 xyz
x 2.200 0.000 0.000
y 0.000 -2.326 0.000
z 0.000 0.000 0.126
Polar
3z2-r20.251
x2-y23.018
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.630 0.000 0.000
y 0.000 1.020 0.000
z 0.000 0.000 1.729


<r2> (average value of r2) Å2
<r2> 5.897
(<r2>)1/2 2.428