## H2BSH, BH2SH

 H3 \ B1 - S2 / | H4 H5
Tell me about the atomic charges, dipole moment, bond lengths, angles, bond orders,
molecular orbital energies, or total energy.
Tell me about the best Lewis structure.

## Atomic Charges and Dipole Moment

B1 charge= 0.108
S2 charge=-0.217
H3 charge=-0.021
H4 charge=-0.064
H5 charge= 0.194
with a dipole moment of 1.11085 Debye

## Bond Lengths:

between B1 and S2: distance=1.788 ang___ between B1 and H3: distance=1.203 ang___
between B1 and H4: distance=1.202 ang___ between S2 and H5: distance=1.366 ang___

## Bond Angles:

for H3-B1-S2: angle=115.2 deg___ for H4-B1-S2: angle=121.2 deg___
for H5-S2-B1: angle=99.63 deg___

## Bond Orders (Mulliken):

between B1 and S2: order=1.162___ between B1 and H3: order=1.017___
between B1 and H4: order=1.009___ between S2 and H5: order=0.928___

## Best Lewis Structure

The Lewis structure that is closest to your structure is determined. The hybridization of the atoms in this idealized Lewis structure is given in the table below.

### Hybridization in the Best Lewis Structure

1. A bonding orbital for B1-S2 with 1.9997 electrons
__has 10.34% B 1 character in a p-pi orbital ( 99.16% p 0.84% d)
__has 89.66% S 2 character in a p-pi orbital ( 99.83% p 0.17% d)

2. A bonding orbital for B1-S2 with 1.9963 electrons
__has 36.11% B 1 character in a sp2.15 hybrid
__has 63.89% S 2 character in a sp2.64 hybrid

3. A bonding orbital for B1-H3 with 1.9913 electrons
__has 45.75% B 1 character in a sp1.99 hybrid
__has 54.25% H 3 character in a s orbital

4. A bonding orbital for B1-H4 with 1.9953 electrons
__has 45.77% B 1 character in a sp1.84 hybrid
__has 54.23% H 4 character in a s orbital

5. A bonding orbital for S2-H5 with 1.9918 electrons
__has 56.39% S 2 character in a s0.48 p3 hybrid
__has 43.61% H 5 character in a s orbital

12. A lone pair orbital for S2 with 1.9913 electrons

-With core pairs on: B 1 S 2 S 2 S 2 S 2 S 2 -

#### Donor Acceptor Interactions in the Best Lewis Structure

The localized orbitals in your best Lewis structure can interact strongly. A filled bonding or lone pair orbital can act as a donor and an empty or filled bonding, antibonding, or lone pair orbital can act as an acceptor. These interactions can strengthen and weaken bonds. For example, a lone pair donor->antibonding acceptor orbital interaction will weaken the bond associated with the antibonding orbital. Conversly, an interaction with a bonding pair as the acceptor will strengthen the bond. Strong electron delocalization in your best Lewis structure will also show up as donor-acceptor interactions.
Interactions greater than 20 kJ/mol for bonding and lone pair orbitals are listed below.

## Molecular Orbital Energies

The orbital energies are given in eV, where 1 eV=96.49 kJ/mol. Orbitals with very low energy are core 1s orbitals. More antibonding orbitals than you might expect are sometimes listed, because d orbitals are always included for heavy atoms and p orbitals are included for H atoms. Up spins are shown with a ^ and down spins are shown as v.

16 ----- 2.124

15 ----- 1.017

14 ----- -0.408

13 ----- -2.496

12 -^-v- -7.421

11 -^-v- -7.868

10 -^-v- -8.698

9 -^-v- -10.50

8 -^-v- -12.46

7 -^-v- -18.82

6 -^-v- -155.3
5 -^-v- -155.3

4 -^-v- -155.5

3 -^-v- -175.6

2 -^-v- -208.3

1 -^-v- -2387.

## Total Electronic Energy

The total electronic energy is a very large number, so by convention the units are given in atomic units, that is Hartrees (H). One Hartree is 2625.5 kJ/mol. The energy reference is for totally dissociated atoms. In other words, the reference state is a gas consisting of nuclei and electrons all at infinite distance from each other. The electronic energy includes all electric interactions and the kinetic energy of the electrons. This energy does not include translation, rotation, or vibration of the the molecule.

Total electronic energy = -424.8974421756 Hartrees