Answers (2)
Kotti Vijay Kumar 1st Sep, 2020

Hello,

The more 's' character of hybrid orbital a molecule have the greater angle between bond.From Bent s Rule equation[cos x =s/s-1](Where x is abond angle and s is the %s character in the bond),it is clear that if we increases bond angle,the %s character will be maximum.

In other words

S   character is a contribution of S orbital in hybridization .S character is directly  proportional to bond angle.The more  S   character of hybrid orbital a molecule have,the grater is the angle between their bond.

I hope this information helps u,

Thank you.

Harshit 1st Sep, 2020

Hey,

Even though the two molecules have same,sp3 hybridisation ,the distribution of s-character between is bonds and towards the LP is different due to the Hydrogen being replaced by Fluorine.

This is explained by Bent's rule,actually there is a correlation between the electronegativity of an atom with the amount of s-character there is in its bond with the central atom.According to Bent,the rule is"s-character concentrates more in orbitals directed towards more electropositive atoms and more p character develops in orbitals directed towards more electronegative atoms.

Hope I solve your query.

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