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Why pcl5 having unequal bond lenth to axial and equatorial postions

Why pcl5 having unequal bond lenth to axial and equatorial postions

Grade:11

2 Answers

JAI
13 Points
5 years ago
In PCl5 the axial bonds suffer repulsion from the equatorial bonds so they become long. The equatorial bonds providing repulsion to axial bonds also happens in case of PF3Cl3 and SF2Cl2
Arun
25750 Points
5 years ago
in pcl5 the axial bonds suffer repulsion from the equatorial bonds so they become long and weak but in pf5 the axial and equatorial bonds are of nearly equal length because the repulsion between the bonds tries to make axial bonds longer but fluorine being most electronegative makes the P-F bond shorter as a result axial bonds become nearly equal to equatorial bonds.

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