Grade 11Inorganic Chemistry
Why P-P bond strength is more than N-N as P-P has 3p-3p overlapping and N-N has 2p-2p overlapping?
Why P-P bond strength is more than N-N as P-P has 3p-3p overlapping and N-N has 2p-2p overlapping?
1 Answer
Apurva Sharma
The N-N sigma bond(having 2p-2p overlap) is weaker than P-P sigma bond(having 3p-3p overlap) because of the small size of nitrogen atom as compared to phosphorous atom.smaller size of N atom leads to smaller N-N bonds leading to high electron-electron repulsion. thus, making the N-N bond weaker than P-P bond.
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