Does PCl5 exist as ion pairs in solid state?

4 Answers. in solid state pcl5 prefer to exist as oppositely charged ions like [pcl4]- and [pcl6]- as the ionic bonding enhances the crystalline nature . also [pcl4]- is tetrahedral , while [pcl6]- is octahedral . these structure fit well into each other providing extra stability to solid structure .

In what form does PCl5 exist in the solid state?

This phosphorus penta chloride has pungent smell in the solid state and it exists as ionic solid that is \[PCl_{4}^{+}\] and \[PCl_{6}^{-}\] in which the cation is having tetrahedral geometry and anion is having the octahedral geometry.

Is PCl5 an ionic bond?

The P-Cl bonds are formed by sharing of elctrons between P and Cl and are covalent bonds. Therefore, PCl5 P C l 5 is a molecular compound.

Why is PCl5 not an ionic compound?

All compounds are polyatomic. If there is only one atom, it would be an element. PCl5 contains 2 different elements, therefore it is polyatomic, but it is not an ion because it is neutral.

Why does PCl5 exist?

PCl5 forms five bonds by using the d-orbitals to “expand the octet” and have more “places” to put bonding pairs of electrons. NCl5 does not exist because there are no d-orbitals in the second energy level. Therefore there is no way to arrange five pairs of bonding electrons around a nitrogen atom.

Why is pcl5 covalent?

If the oxidation state is high, then the polarizing power is high, which accounts for a more covalent bond between the surrounding atoms and the central atoms. In PCl5, the central metal atom P is in +5 oxidation state, whereas in PCl3, the oxidation state of P is +3. Hence, PCl5 is more covalent than PCl3.

Why does PCl5 not follow the octet rule?

Phosphorus pentachloride: In the PCl5 molecule, the central phosphorus atom is bonded to five Cl atoms, thus having 10 bonding electrons and violating the octet rule.

How does PCl5 exist in liquid state?

Explanation: PCl5 is trigonal bipyramidal containing sp3d hybridized P atom in liquid and gaseous states whereas in solid state it consists of tetrahedral PCl4+ cation and octahedral PCl6- anion.

Why does NCl3 exist but not NCl5?

Nitrogen atom do not have vacant d-orbitals. Thus, the transfer of electron does not takes place. As a result nitrogen atom show maximum three unpaired electron. Thats why nitrogen atom does not form NCl5 but forms NCl3.