1
Question
Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of 2- fluoroethanol is
Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of 2- fluoroethanol is
Open in App
Solution
The correct option is C Eclipse, Anti, Gauche
Staggered conformation is stable than eclipsed conformation because the substituents on adjacent carbons are far apart.
In general anti-staggered is more stable than gauche because the bulky groups are far apart as possible but here in gauche conformer −OH group forms a hydrogen bonding with F atom which make it more stable than anti-staggered conformer.
In fully eclipsed conformation F and OH groups are so lose that the steric strain is maximum. Hence, this conformation unstable than partial eclipsed conformer.
The order of stability of these conformations is gauche > anti > partially eclipsed > fully eclipsed.
Thus, correct answer is (c).
Staggered conformation is stable than eclipsed conformation because the substituents on adjacent carbons are far apart.
In general anti-staggered is more stable than gauche because the bulky groups are far apart as possible but here in gauche conformer −OH group forms a hydrogen bonding with F atom which make it more stable than anti-staggered conformer.
In fully eclipsed conformation F and OH groups are so lose that the steric strain is maximum. Hence, this conformation unstable than partial eclipsed conformer.
The order of stability of these conformations is gauche > anti > partially eclipsed > fully eclipsed.
Thus, correct answer is (c).
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
