MCQ
Increasing order of stability among the three main conformations (i.e. Eclipse, Anti, Gauche) of $2-$ fluoroethanol is
- ✓Eclipse, Anti, Gauche
- BAnti, Gauche, Eclipse
- CEclipse, Gauche, Anti
- DGauche, Eclipse, Anti
✓
Answer
Correct option: A.
Eclipse, Anti, Gauche
a
Gauche conformation is comparatively more stable due to hydrogen linkage in between $\mathrm{F}$ and $\mathrm{H}(\mathrm{atO}-$ atom), hence order is Eclipse, Anti (staggered), Gauche.
Gauche conformation is comparatively more stable due to hydrogen linkage in between $\mathrm{F}$ and $\mathrm{H}(\mathrm{atO}-$ atom), hence order is Eclipse, Anti (staggered), Gauche.
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