is good leaving group also a good nucleophile????if not then how iodine ion is good leaving group and also a good nucleophile????
Answer (1)
25th Feb, 2021
Hey,
The leaving group tendency is based on the aside base strength. The basic compound whose conjugate acid will will be stronger than water will act as a good leaving group.
On the other hand the Nucleophilic property is based on the bond between atom and it's line pair of electrons in the outermost shell.
So a good nucleophile can be a good leaving group.
Iodine is the best example of it. The conjugate acid of Iodine HI is stronger than water hence it act as a good leaving group. Along with tha the outer most lone pair of electron is loosely bounded hence its easy to give up the electron and act as a good nucleophile.
Hope that helps.
Thank you.
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