Chemistry, asked by ashermitul1000, 1 year ago

Why pcl5 exists as pcl5 in gaseous state?

Answers

Answered by CyberAkay
7
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Pcl5 is quite unstable due to electronic repulsion at axial bond. So to gain stability it decomposes to cation and anion.
Therefore 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 . 
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