Chlorine trifluoride has actually an appearance favor greenish-yellow liquid or colorless gas v a pungent smell. The is one interhalogen compound. Contact with ClF3 causes suffocation and also irritation.

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In this article, us will talk about ClF3 lewis structure, molecular geometry, is it polar or non-polar, bond angle, hybridization, etc. 

It is used in the semiconductor industry, rocket propellant, and military applications.

Chlorine trifluoride properties

It is corrosive come metal and also tissue.It boils in ~ 53°F.It is a very strong oxidizing and fluorinating agent.ClF3 melting point is −76.34 °C and also the boiling suggest is 11.75 °C.It has actually a molar massive of 92.45 g·mol−1
Name the MoleculeChlorine trifluoride
Chemical formulaClF3
Molecular geometry the ClF3T-shaped
Electron geometry the ClF3Trigonal bipyramidal
Lone pair2
Total Valence electron in ClF3 lewis structure28
The formal fee of ClF30

Page Contents present
1 how to draw ClF3 lewis framework
2 monitor these steps to attract the stable ClF3 Lewis dot structure.
3 What room the electron and molecular geometry the ClF3?
4 Chlorine trifluoride polarity: Is ClF3 polar or non-polar?
6 summary

How to draw ClF3 lewis framework

ClF3 lewis structure contains 3 fluorine atom at the neighboring position and 1 chlorine atom in ~ the central position. The lewis framework of ClF3 violates the octet as the main atom of the has much more than 8 electron in the outer shell.

ClF3 lewis period structure consists of a complete of 11 lone pairs(3 on every fluorine atom and also 2 on the chlorine atom). Over there is three bonded pair as well.

Follow these procedures to attract the secure ClF3 Lewis dot structure.

1. Count total valence electron in ClF3

In the first step, counting all valence electrons current in this molecule. Both chlorine and fluorine belong to the 17th team in the regular table.

⇒ Chlorine valence electron = 7

⇒ Fluorine valence electrons = 7*3 <∴F3>

Total valence electrons available for drawing the ClF3 lewis structure = 7 + 7*3 = 28 valence electrons.


2. Uncover the least electronegative atom

Both chlorine and fluorine belong to the same group in the routine table. And we require to uncover which atom has less electronegativity.

As electronegative reduce from approximately down in the periodic table and chlorine situated below fluorine. So, we got our the very least electronegative atom.

Also, fluorine is the most electronegative element in chemistry, so, it always goes outside in the lewis diagram.

Place chlorine atom in ~ the facility in lewis diagram and also fluorine atoms spaced evenly roughly it.


3. Attach Chlorine and also Fluorine with a single bond

Now after placing Chlorine at the center, we need to attach every outer atom come the central atom v the assist of a single bond.


As you watch in this structure, we provided three solitary bonds to affix the outer atom to the central atom.

So, we used 6 electron from a full of 28 valence electrons.

∴ (28 – 6) = 22 valence electrons

Now we space left through 22 valence electron more.

4. Situate the continuing to be valence electrons starting from the outer atom first

Now in this step, we need to location the remaining valence electrons beginning from the outer atom an initial to finish the octet rule of every atom present in the ClF3 molecule.

So, we have actually 22 more valence electron to work and also Fluorine (outer atom) needs 8 electrons to finish its octet rule. 

As every fluorine currently shares 2 electrons with the assist of a solitary bond. So, we require only 6 an ext electrons to complete each fluorine octet.


As you watch in this over structure, we put 6 electrons about each fluorine.

⇒ (6 electrons × 3 fluorine atom) = 18 valence electron

We had actually 22 continuing to be valence electrons

∴ (22 – 18) = 4 electrons

So, currently we are left through 4 an ext valence electrons.

Let’s use these continuing to be electrons approximately the central atom in the next step.

5. Complete main atom octet and also make covalent bond if necessary

This is the final step for making the ClF3 Lewis structure.

We have 4 valence electrons that have to place about the chlorine central atom.


ClF3 lewis structure

By looking in ~ the over structure, we watch chlorine central atom has a complete of 10 electrons approximately but because that achieving octet, only 8 electrons space needed. Climate why chlorine atom takes extra electrons?

This is since the lewis diagram is the depiction of all the valence electrons around atoms in ~ a molecule, so, we have 4 continuing to be valence electrons, however for perfect the octet of chlorine atom just 2 electron are necessary as it already sharing 6 electrons v three solitary bonds.

Also, the Chlorine atom can increase the octet because it has actually d-orbitals in the 3rd principal energy level, hence, it has actually an extra orbital(d-orbital) for extr electrons required for bonding.

So, for fulfilling the necessity of the lewis diagram rule, we have to use every valence electrons in ~ a molecule, the doesn’t issue if part atoms share an ext than 8 electrons due to the fact that there have the right to be exception in the octet rule.

We offered all the valence electrons that are available for illustration the Lewis structure of ClF3.

So, we acquired the correct and also best Chlorine trifluoride lewis structure.

Still, you have the right to verify its security by using the formal charge concept.

⇒ Formal charge of Cl = Valence electron (7) – 1/2*Bonding electron (6) – Lone pair of electron (2*2)= 7 – 3 – 4 = 0.

⇒ Formal fee of every F atom = Valence electrons (7) – 1/2*Bonding electrons (2) – Lone pair of electrons ( 2*3)= 7 – 1 – 6 = 0.

The formal fee is zero on every atom(chlorine and fluorine) in the ClF3 Lewis structure. Together “lower the officially charge, greater is the security of lewis diagram”.

According come VSEPR (Valence shell electron pair repulsion theory), ClF3 molecular geometry is T-shaped and also its electron geometry is trigonal bipyramidal. 

“There space two lone pairs current on the main atom the ClF3 molecule which is adjusted on the axial aircraft to maximize the bond angle and also minimize the link repulsion. Two F are readjusted on one equatorial position separated by an angle of 180°. And one is adjusted on the axial plane in a see-saw way. It acquires a trigonal bipyramid structure but lone pairs are not a part of the structure. For this reason the structure of ClF3 is a T-shaped structure”.


As you view in the above structure, 2 lone bag on main atom repelling each other, also, they tried come repel bonded pair electrons together well, together a result, both fluorine atom in the equatorial position pushed far apart from every other providing the look of T-Shaped structure.

Theoretically, We need ClF3 lewis’s framework to aid to recognize its shape. Since the lewis diagram helps us to recognize how countless lone pairs and also bond bag a molecule contains. 

Let’s see action by step exactly how to determine the molecular and also electron geometry the ClF3.

1. Discover the variety of lone pairs present on the main atom the the ClF3 lewis structure

First the all, we require to find how plenty of lone pairs ClF3 main atom contains. Together we check out in the ClF3 lewis structure, Chlorine i beg your pardon is the main atom consists of 2 lone pairs.

Or us can find lone pair in ClF3 by using the straight formula:

L.P = (V.E. – N.A.)/2

where L.P. = Lone pair on the main atom

⇒ V.E. = valence electron of that main atom

⇒ N.A. = variety of atoms attached come that main atom

∴ Here, Chlorine is the main atom that has 7 valence electrons and also 3 fluorine atoms attached come it.

So, placed these worths in the formula to discover lone pair.

∴ (7 – 3)/2

= 2 lone bag on main atom(chlorine)

2. Discover hybridization number of ClF3

Now we require to uncover the hybridization variety of ClF3 so the we have the right to determine that molecular and electron geometry.

Use the listed below Formula to uncover the Hybridization variety of ClF3

H = N.A. + L.P.

where H = hybridization number

⇒ N.A. = number of atoms attached to the main atom

⇒ L.P. = lone pairs on that main atom

Look in ~ the ClF3 structure, 3 fluorine atom attached come the main atom(Chlorine) and also two lone pairs existing on the main atom.

So, H = 3 + 2

= 5 is the hybridization number of ClF3

It way the hybridization the ClF3 is Sp³d.

3. Usage VSEPR concept or AXN an approach to recognize ClF3 molecular/electron geometry

This is the last step to recognize the geometry of ClF3. So, according to the VSEPR chart if the molecule has Sp³d hybridization and two lone pairs climate the molecule geometry of that molecule is T-shaped and electron geometry is trigonal pyramidal.


ClF3 molecular geometry or Shape

You can also use the AXN method to recognize the molecule geometry or electron geometry of ClF3.

A represents the main atom.X represents the bonded atoms to the central atom.N to represent the lone pairs on the central atom

With the assist of the ClF3 Lewis dot structure, we recognize chlorine is the main atom that contains 2 lone pairs and also is attached to 3 external inspection atoms.

So, the ClF3 formula i do not care AX3N2.

According come the AX3N2 formula, ClF3 molecule geometry is T-shaped and also electron geometry is trigonal pyramidal.

Bonded atomsLone pairGeneric formulaHybridizationMolecular geometryElectron geometry
30AX3Sp²Trigonal planarTrigonal planar
21AX2NSp²BentTrigonal planar
12AXN2Sp²LinearTrigonal planar
31AX3NSp³Trigonal pyramidTetrahedral
32AX3N2Sp³dT-shapedTrigonal bipyramidal


As ClF3 has actually 2 lone pair or 3 link repulsion units and it developed T-shaped or trigonal pyramidal geometry, its F—Cl—F entailing the axial atom bond edge is 175º and F—Cl—F entailing the one axial atom and also one equatorial bond edge is around 90º.

Is ClF3 polar or non-polar? Still don’t know? ClF3 is a polar molecule since it has an asymmetrical shape and the existence of 2 lone pair electrons resulting in an unequal circulation of charge making this molecule polar in nature.

Let’s know in depth why ClF3 is polar in nature through the help of 3 factors.

Three determinants that suggest the polarity that ClF3

1. Electronegativity: 

Electronegativity shows the tendency of one atom come pulling electron to itself. The greater the difference of electronegativity in between atoms higher is the polarity of the atom.

Clearly, in the ClF3 molecule, Fluorine is more electronegative 보다 chlorine.

The electronegativity value of Chlorine is 3.16 and also for fluorine, that is 4. The difference between the electronegativity that Fluorine and chlorine is more than 0.5.

Hence ClF3 is polar in nature.

2. Dipole moment

This is one accurate means to recognize whether ClF3 is polar or non-polar. If the molecule has actually some network dipole moment then the molecule is polar in nature.

The higher the dipole moment of the molecule greater is the polarity strength of that molecule.

The dipole moment is induced through the development of an unfavorable and confident charges in the molecule.


Dipole minute diagram of ClF3

As you see in the over figure, dipole vector direction in the direction of Fluorine. Because fluorine is much more electronegative than Chlorine. Hence it attracts electrons towards itself and develops a partial an unfavorable charge.

The partial hopeful charge was also developed by Chlorine and also we understand separation of positive and an unfavorable charge bring about some dipole moment of the molecule.

So, this dipoles can’t be canceled out. Therefore it do ClF3 a polar molecule in nature.

3. Geometrical or molecular shape:

The geometry of ClF3 has actually a great influence on its polarity. Together we understand asymmetrical shape causes to come to be a molecule polar in nature.

From the lewis framework of ClF3, we recognize 2 lone pair existing on its central atom hence it do the shape of ClF3 bent and also causing unequal distribution of charges i beg your pardon induces a irreversible dipole in between atoms.

Also, the electron geometry the ClF3 is trigonal bipyramidal, and also the molecular shape is T-Shaped which is the non-symmetrical shape.

Hence all these factors aid to understand whether ClF3 is polar or non-polar.


How countless lone pairs and also bond bag does Chlorine contain according to the ClF3 lewis structure?

The variety of lone bag on the central atom(chlorine) is two, and also the bond pair which is attached to the main atom is three.

Why Chlorine common 10 electron to finish its octet in the ClF3 Lewis dot structure?

As we know chlorine only demands 8 electrons to finish its octet rule regardless of this chlorine shares 10 electrons with other atoms and also violates the octet rule.

Because Chlorine is an broadened octet in the Lewis structure of ClF3. And fluorine will certainly not take much more than 8 electrons as it is already fully stable leave chlorine through 4 extra electrons.

Hence this extra 4 electron act as lone pair electron on Chlorine central atom.

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Why molecule geometry of ClF3 is T-shaped?

Because two lone pairs which are present on the Chlorine in the ClF3 lewis structure gain the equatorial place as they demand more space than bond pairs.