Carbon tetrafluoride, or tetrafluoromethane, is the easiest fluorocarbon, with very high link strength. That is a colorless, non-flammable gaseous compound which drops under the group of haloalkane (a combination of halogen and also alkane). Tetrafluoromethane acts together a helpful refrigerant, but also adds come greenhouse gas contribution 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 because carbon and fluorine different in your electronegativity, the all at once CF4 molecule is non-polar. This is due to the fact that of the symmetrical setup of every fluorine atoms roughly the main carbon atom. As such each individual C-F bond dipole cancels the end each other bring about the net-zero dipole minute of the entire molecule making that nonpolar.

CF4 – Structure, molecule Geometry

The molecular geometry the carbon tetrafluoride is tetrahedral, through the carbon atom at the center, surrounded by four fluorine atoms. However, the CF 4 molecule is arranged in two various planes.

While 2 C-F binding lie in the aircraft of the paper, the other two do not. No lone pairs exist in the molecular structure of CF 4 and the target is the the distance in between the Carbon and also Fluorine.

The carbon-fluorine bond size is typically around 1.32 Angstrom. The bond angle for each C-F shortcut is 109°28’, with sp3 hybridization (for the carbon atom).


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

Each Fluorine atom shares one electron approximately the carbon atom and hence all the octets room completed by share of electrons (both Fluorine and Carbon).

None the less, the share of electron is not equal since Fluorine is much more electronegative than Carbon (electronegativity that Fluorine = 3.98, while that of Carbon = 2.55).

The lack of lone pair on the main atom offers a tetrahedral molecular shape to the molecule the CF4 (according to the VSEPR Theory).

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

Characteristics of Non-Polar Compounds

The polarity the a link is the cumulative existence of a non-zero dipole minute in the molecular structure.

Molecules having actually dipole-dipole interactions have actually a net non-zero dipole minute while those with no dipole-dipole interactions have a dipole minute equal to zero Debye.

Non-polar compounds are identified by a number of factors.

1.) Symmetricity: Molecules through symmetricity in their structures tend to have a net-zero dipole moment, also if there are dipole pressures existing in separation, personal, instance bonds (between 2 atoms).

In symmetric molecules, usually, the result of separation, personal, instance dipoles come out to be equal in magnitude and also opposite in your direction.

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

CBr4 is one such compound through the symmetric setup of all C-Br bonds. Below is the post to check out the factor for the non-polarity the CBr4.

2.) Bonding: Hydrogen bonds and covalent bonds room comparatively stronger than weak Vander Waal forces of attraction.

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

The explanation because that the exact same is simple. Vander Waal forces are weak sufficient to be disturbed easily and contribute to no far-reaching charge amassing in ~ the poles.

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

3.) fee Accumulation: Non-polar molecule are defined by same sharing that electrons forming a bond. In together a scenario, no partial dues are distributed on the atoms associated in shortcut formation.

Without any push or traction on the electrons, the charges space not built up or collected on one of two people pole that the molecule.

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

4.) Electronegativity Difference: for a dipole moment to be taken into consideration significant, the difference in the electronegativity the the 2 atoms creating the bond must be higher than 0.4.

For electronegative differences listed below 0.4, the dipole moment produced is as well little. Such low disparities carry out not contribute to the dipole-dipole interactions.

Whereas compounds favor NCl3 having actually dipole minute 0.6 D is taken into consideration to be contempt polar. Chemistry is complete of exceptions. Read out the article for the reason for the polarity of NCl3.

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

5.) Properties: Non-polar compounds have tendency to have low melting and boiling points because weaker pressures require less power to be modified.

Why is CF4 a nonpolar compound?

The Dipole minute of C-F bonds

In CF4, every bond has actually its very own individual dipole moment.

Because that a significant difference in the electronegativity the Carbon and also Fluorine, the fluorine atoms tend to pull the shared electron pair between C and F in the direction of itself, fashioning one uneven fee distribution and also leading to the formation of a dipole minute (with fluorine having actually a somewhat an adverse charge accumulation and carbon left v a partial confident charge).


How framework affects the Polarity that CF4?

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

Whereas, the resultant dipole that the other two C-F bonds originates specifically 180° to the result of the same airplane bond pairs causing the cancellation of both the contrary dipoles.

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


This call-off occurs as result of the structural geometry that the molecule of the compound.

Hence, there are 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 v fluorine leader to the formation of CF4 (Fluorination of Carbon).

C (graphite) + 2F2 (g) ———> CF4 (g)

2.) it can also 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.) it is a by-product of aluminum processing.

Properties of CF4

Molecular load = 88 g/molBond length = 132.3 pmBond angle = 109°28’Critical temperature = -50.2°CDensity = 3.72 g/LNet dipole minute = 0 DebyeSolubility = dissolve in non-polar solvents prefer benzene and chloroform and also has low solubility in water (about 20 mg/L).Melting suggest = -183.8°CBoiling point = -128°CThe low melting and boiling point out of the compound space attributable come its non-polar nature. Non-polar compounds have weaker forces 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 center toxic effect on the human being body top top its inhalation.

Uses that CF4

CF4 is specifically popular together a low-temperature refrigerant.It is one inert gas and additionally an oxygen displacer (under standard atmosphere conditions).CF4 is supplied in number of water etching processes.It has several supplies in ghost detectors.It is provided in electronics microfabrication (either alone or in combination with combination).

Possible greenhouse results of Tetrafluoromethane

Tetrafluoromethane (CF4) is one exceedingly secure gas, i beg your pardon is colorless and also non-flammable. The absorbs strong infrared radiation (~ 8 micrometers), and hence qualified of affecting the greenhouse effect.

The gas has an atmospheric lifetime of roughly 50,000 years.

It is designated as PFC-14 (perfluorocarbon-14), the many abundant PFC in the atmosphere and its concentration is farming steadily, because of its widespread use as a refrigerant.

Structurally, CF4 is comparable to CFCs (chlorofluorocarbons) yet does not add up to the ozone great depletion, as result of the absence of chlorine atoms.

In CFCs, the chlorine atoms break down upon reacting through UV-rays and also lead to exhaustion of O3.

However, in CF4, chlorine is lacking and therefore no together reactions happen which might weaken the ozone layer in the stratosphere.

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