JEE Exam » JEE Study Material » Chemistry » Hybridization of Boron Trifluoride

Hybridization of Boron Trifluoride

The chemical compound Diborane, also known as Diborane, has the formula B2H6 and is made up of boron and hydrogen.

As a first step, we need to learn about inorganic compounds. Boron trifluoride is one of these. Carbon-Hydrogen bonds aren’t found in inorganic compounds. A combination that doesn’t have a C-H bond is also inorganic, like Boron Trifluoride.

Properties of Boron Trifluoride 

  • It is a pungent gas.
  • It doesn’t have any colour and is dangerous.
  • In the air (moisture), it makes white fumes.
  • BF3 is the chemical formula for Boron Trifluoride. 

The Shape of a BF3 Molecule

BF3 molecules are made up of three Boron and one Fluorine atom. It means that three Fluorine atoms surround one Boron atom in the same way as the shape of an egg, and is made up of three eggshells. A triangle of three atoms of Fluorine is formed on the outside. All three of them have bond angles that are 120° to each other.

Lewis structure of Boron Trifluoride 

A Lewis structure is the way that things are put together. You first need to figure out how many electrons are in the molecule of BF3, which comes out to 24. They all have to go around Boron, the main element in lewis’s structure for BF3. Boron is the atom in the middle of this structure because it has the least electronegativity of the other three bits in the group. When Boron wants to finish the octet, it needs six electrons in its outer shell to do it. You can still say that this doesn’t change how neutral the charge is of the BF3 molecular chain.

How should You draw the BF₃ Lewis Structure?

Lewis structure: Before we draw the Lewis structure of BF3, we need to figure out how many valence electrons a BF3 molecule is made of. It comes out to be 24 after you do the maths, so that’s what the electron count is. After we figure out how many valence electrons are there, we need to add them around the central atom and finish the octet, the group of eight electrons.

In some molecules, we might see that the octet rule isn’t being obeyed, which is terrible. Valence electrons can be found in many different types of molecules. If there are an odd number of valence electrons, for example, the number of electrons in the molecule will be less, or even very high, the valence electrons will be found in a molecule. Boron has five valence electrons, three of which can be used to make bonds with other things. Three Fluorine atoms have three electrons each. All three of these electrons pair with three of these electrons. This is how it works: Each Fluorine atom has seven valence electrons, but only one of them can be used to make a bond.

Violations

There are three situations where the Octet Rule can be broken when drawing Lewis structures. We don’t need to think about this every time because it’s scarce, and these exceptions will only happen when they need to be.

Example 1:  If there are a lot of valence electrons, like 3,5,7, etc.

Example 2: There are very few valence electrons in the atoms in this case.

Example 3: The valence electrons will be too many if there are too many electrons.

There is no octet in this case because the central electron has six pieces. So, add more than one bond to see if the central atom can get an octet.

BF3 Hybridization

When atoms are mixed, they form hybrid orbitals. Different molecules have different shapes because of hybrid orbitals. Based on the type of orbitals mixed, there are six types of hybridization. There are no other bonds in this molecule. There is only one pair of electrons in the Boron atom, making it unique. In this molecule, three sp2 hybrid orbitals of Boron and three p orbitals of three Fluorine atoms make bonds with each other. This makes the molecule more stable.

BF3 Polarity

When you look at the charge of an atom, you can figure out which way it is polarised. This means that a BF3 molecule is neutral, which means that its overall charge is 0. This means that there is no polarity, or one can say that BF3 isn’t very polar. The difference is minimal because both B and F atoms have almost the same electronegativities.

All of this was about the BF3 molecular chain. 

There are some things we need to know about Boron trifluoride first. This chemical compound is an inorganic compound that is a toxic, toxic inorganic compound, also when it’s gaseous, it doesn’t have any colour at all. It makes fumes when it reacts with moist air. As a dihydrate, it is a substance that is very easy to mix with water.

sp2 hybridization is the type of hybridization for this molecule. For example, Boron usually has three orbitals in its outer shell that have the same energy as each other. These orbitals are called three sp2 hybrid orbitals, and they typically have the same amount of energy as each other.

Conclusion

Boron Trifluoride (BF3) is an inorganic compound because it doesn’t have a carbon atom or a C-H bond. The chemical compound BF3 is made when boron oxides and hydrogen fluoride mix. It has a strong smell and is colourless.

In different states of matter, the compound behaves in another way. It is highly soluble in water and toxic when gaseous. It makes white fumes in moist air that look like white powder.

When condensation and esterification happen, BF3 supports the reaction. It is used to make adhesives, other chemicals and lubricants.

faq

Frequently Asked Questions

Get answers to the most common queries related to the JEE Examination Preparation.

Is BF3 sp3 hybridised?

Ans. BF3 is not sp3 hybridised, when you make BF3, one of the fluorines is sp3, and it is used to create a bond with...Read full

What is the shape of boron trifluoride?

Ans. The molecule of BF3...Read full

What is boron fluoride?

Ans. When it comes to inorganic compounds, boron trifluoride is the one with B...Read full

What is hybridisation?

Ans. Pauling introduced hybridisation to explain the equal ...Read full