Question

Why are the excial bond longer as compared to equatorial bond?

Answer 1

▀▄▀▄▀▄[_$<b>Hɪ Mᴀᴛᴇ$_]▄▀▄▀▄▀

ıllıllıllıllıllıllı[ Your Answer ]ıllıllıllıllıllıllı

ȯ 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

$<b><marquee>$

 ▁ ▂ ▄ ▅ ▆ ▇ █ [ Hᴏᴘᴇ Help You Dear ] █ ▇ ▆ ▅ ▄ ▂ ▁

Answer 2

The axial bonds are longer than equatorial bonds because of greater repulsion from equatorial bonds. The 2-axial bonds are at 90º degree angle to 3-equatorial bonds while all equatorial bond are at 120º angle to each other.