Carbon tetrafluoride, or tetrafluoromethane, is the simplest fluorocarbon, with really high link strength. The is a colorless, non-flammable gaseous link which falls under the group of haloalkane (a combination of halogen and alkane). Tetrafluoromethane acts as a valuable refrigerant, but additionally adds to greenhouse gas donation in the atmosphere.

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So, is CF4 polar or non-polar? CF4 is a nonpolar molecule. Although every C-F bonds are polar since carbon and fluorine different in your electronegativity, the in its entirety CF4 molecule is non-polar. This is due to the fact that of the symmetrical plan of every fluorine atoms about the central carbon atom. Therefore each separation, personal, instance C-F shortcut dipole cancels the end each other resulting in the net-zero dipole minute of the entire molecule making that nonpolar.

CF4 – Structure, molecular Geometry

The molecule geometry the carbon tetrafluoride is tetrahedral, v the carbon atom at the center, surrounding by 4 fluorine atoms. However, the CF 4 molecule is i ordered it in two different planes.

While 2 C-F bond lie in the aircraft of the paper, the various other two perform not. No lone pairs exist in the molecular framework of CF 4 and also the aim is that the distance in between the Carbon and Fluorine.

The carbon-fluorine bond length is typically about 1.32 Angstrom. The bond angle for each C-F bond is 109°28’, v sp3 hybridization (for the carbon atom).


The Lewis dot framework for CF4 has a total of 32 valence electrons, v 7 electrons roughly each fluorine atom (7×4 = 28) and also 4 electrons around the main carbon atom.

Each Fluorine atom share one electron roughly the carbon atom and also hence all the octets are completed by sharing of electrons (both Fluorine and Carbon).

None the less, the sharing of electrons is no equal because Fluorine is much more electronegative than Carbon (electronegativity the Fluorine = 3.98, while the of Carbon = 2.55).

The lack of lone pair top top the main atom gives a tetrahedral molecular form to the molecule of CF4 (according come the VSEPR Theory).

For her reference, I have actually written a detailed short article on CF4 Lewis Structure, Hybridization, and also Geometry.

Characteristics the Non-Polar Compounds

The polarity the a compound is the cumulative visibility of a non-zero dipole minute in the molecule structure.

Molecules having dipole-dipole interactions have actually a network non-zero dipole minute while those v no dipole-dipole interactions have a dipole minute equal come zero Debye.

Non-polar compounds are characterized by a variety of factors.

1.) Symmetricity: Molecules with symmetricity in their structures tend to have actually a net-zero dipole moment, even if there room dipole forces existing in individual bonds (between two atoms).

In symmetric molecules, usually, the result of individual dipoles come out to be equal in magnitude and also opposite in their direction.

On these grounds, castle cancel each various other out (vector sum = 0) and hence eliminate the network dipole moment.

CBr4 is one such compound with the symmetric setup of all C-Br bonds. Right here is the article to check out the factor for the non-polarity the CBr4.

2.) Bonding: Hydrogen bonds and also covalent bonds are comparatively stronger than weak Vander Waal pressures of attraction.

Compounds v weaker pressures to bind their molecular structures together have actually a propensity because that being non-polar in nature.

The explanation for the very same is simple. Vander Waal forces are weak sufficient to it is in disturbed easily and also contribute to no significant charge amassing at the poles.

Stronger bonds, however, display screen some attractive and repulsive pressures which cause partial charge imbalances.

3.) fee Accumulation: Non-polar molecules are defined by same sharing that electrons developing a bond. In together a scenario, no partial fees are spread on the atoms involved in bond formation.

Without any kind of push or traction on the electrons, the charges space not gathered or accumulated on one of two people pole that the molecule.

Hence, there is no charge gathering in non-polar molecules.

4.) Electronegativity Difference: because that a dipole minute to be considered significant, the distinction in the electronegativity of the 2 atoms creating the bond need to be higher than 0.4.

For electronegative differences below 0.4, the dipole moment produced is as well little. Such short disparities execute not contribute to the dipole-dipole interactions.

Whereas compounds choose NCl3 having actually dipole moment 0.6 D is considered to be contempt polar. Chemistry is complete of exceptions. Review out the article for the reason for the polarity of NCl3.

However, it is so possible that individual bonds in a molecule may be polar (due come electronegativity difference), but the resultant of all bonds might cancel out.

5.) Properties: Non-polar compounds have tendency to have actually low melting and also boiling points because weaker forces require less power to it is in modified.

Why is CF4 a nonpolar compound?

The Dipole moment of C-F bonds

In CF4, each bond has its own individual dipole moment.

Because the a considerable difference in the electronegativity of Carbon and also Fluorine, the fluorine atoms have tendency to pull the shared electron pair between C and also F in the direction of itself, fashioning an uneven fee distribution and leading come the development of a dipole moment (with fluorine having actually a somewhat an unfavorable charge buildup and carbon left v a partial optimistic charge).


How structure affects the Polarity the CF4?

In CF4, two C-F bonds lie in the same plane of the molecule, the various other two bonds execute not. However, the resultant of the 2 bonds comes out to it is in in the same plane as the two in-plane bonds.

Whereas, the resultant dipole the the various other two C-F bonds originates precisely 180° to the result of the same plane bond pairs resulting in the cancellation the both the opposite dipoles.

In CF4, the main reason because that the existence of non-polarity, regardless of the separation, personal, instance bonds being very polar, is the canceling that the dipole moments.


This call-off occurs due to the structure geometry that the molecule of the compound.

Hence, there space no dipole-dipole interaction in the molecule.

How is CF4 produced?

Tetrafluoromethane is formed during a variety of processes.

1.) The reaction of graphite Carbon through fluorine leads to the development of CF4 (Fluorination that Carbon).

C (graphite) + 2F2 (g) ———> CF4 (g)

2.) it can additionally be formed by a reaction that CCl2F2 or CCl3F with Hydrogen Fluoride (HF, in gaseous phase).

CCl2F2 + 2HF (g) ——–> CF4 + 2HClCCl3F + 3HF (g) ——> CF4 + 3HCl

3.) that is a by-product of aluminum processing.

Properties that CF4

Molecular load = 88 g/molBond size = 132.3 pmBond angle = 109°28’Critical temperature = -50.2°CDensity = 3.72 g/LNet dipole minute = 0 DebyeSolubility = dissolve in non-polar solvents like benzene and chloroform and has short solubility in water (about 20 mg/L).Melting allude = -183.8°CBoiling allude = -128°CThe short melting and also boiling point out of the compound room attributable to its non-polar nature. Non-polar compounds have weaker pressures of attraction which can be agitated with low heat.Carbon tetrafluoride is a colorless, odorless, non-flammable, and non-explosive gas.It has actually a moderate toxic impact on the human being body on its inhalation.

Uses that CF4

CF4 is an especially popular together a low-temperature refrigerant.It is an inert gas and likewise an oxygen displacer (under standard atmosphere conditions).CF4 is offered in number of water etching processes.It has actually several offers in neutron detectors.It is supplied in electronic devices microfabrication (either alone or in combination with combination).

Possible greenhouse effects of Tetrafluoromethane

Tetrafluoromethane (CF4) is an exceedingly secure gas, which is colorless and non-flammable. That absorbs strong infrared radiations (~ 8 micrometers), and hence capable of affecting the greenhouse effect.

The gas has an atmospheric life time of about 50,000 years.

It is designated together PFC-14 (perfluorocarbon-14), the most abundant PFC in the atmosphere and its concentration is growing steadily, as result of its widespread usage as a refrigerant.

Structurally, CF4 is comparable to CFCs (chlorofluorocarbons) yet does not include up to the ozone class depletion, due to the lack of chlorine atoms.

In CFCs, the chlorine atoms malfunction upon reacting v UV-rays and also lead to fatigue of O3.

However, in CF4, chlorine is missing and therefore no together reactions happen which could weaken the ozone great in the stratosphere.

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C-F bonds room stronger and also less most likely to dissociate, and also hence make it the many persistent greenhouse gas. It additional contributes come long-term an international warming effects.