Welcome to Chem Zipper.com......: What is Bent’s rule of hybridization?

Search This Blog

What is Bent’s rule of hybridization?

According to the bent's rule the more electronegative atom not only prefer to stay in that Hybride orbital which having less  % S character (more p-character) but it also decreases % S-character and increases % P-character in its attached orbital from the central atom.


On increasing % s character in hybrid orbital , the bond length  decreases while bond angle increases.

For example:C-H bond of CH4 is longer than C-H bond of floromethan (CH3F) because In CH4 all the Sp3 hybrid orbitals are equal in term of  s-% character(25%) and % p-charater(75%)  so that all C-H bond in CH4  are equal while in case of CH3F the hybrid orbital has more p-character (more than 75%) and less s-character (less then 25%) containg fluorine atom and other hybrid orbitals have less p-character (less than75%) and more s-character (more than 25%) hence C-H bond length of CH3F decreases.

EXCEPTIONS OF BENT’S RULE:

 (1): Bent’s rule is applicable in those molecules where central atoms are same and they are also in same Hybridization.

For example N-N bond length cannot be compared in N2H4 and N2O4 using Bent rule.

(2): Bent’s rule violets in those molecules where steric factor’s plays dominating rule.

Related Questions:

What is Bent’s rule of hybridization?

Which of the following compound have longest (S=O)bond length , O=SF2, O=SCl2, O=SBr2.

No comments:

Post a Comment

Featured Post

Structure of “Borazine/Borazole”/inorganic Benzene:

(1)  Borazine is an inorganic compound with the chemical formula   (B 3 N 3 H 6 ). and also called Borazole. It is a heterocyclic compound,...

Top Search Topics