The gauche conformation (θ = 60°) of n-butane possess:a)Plan...
The lowest energy conformation is the anti conformation, with the chloride and propyl group at 180degree. This is the most stable conformation due to the alleviated torsional strain between the two groups.When the dihedral angle is 60degree, the molecule has adopted a gauche conformation.
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The gauche conformation (θ = 60°) of n-butane possess:a)Plan...
Also known as the gauche rotamer) is a specific arrangement of atoms in a molecule where two substituent groups are positioned next to each other with a dihedral angle of approximately 60 degrees. This conformation is characterized by a steric hindrance between the substituent groups, resulting in a slightly higher energy state compared to other conformations.
In organic chemistry, the gauche conformation is commonly observed in molecules with sp3 hybridized carbon atoms, such as alkanes and cycloalkanes. It is a result of the repulsion between the electron clouds of the substituent groups, which leads to a destabilized arrangement.
The gauche conformation is energetically unfavorable compared to the anti conformation, where the substituent groups are positioned opposite to each other with a dihedral angle of approximately 180 degrees. This is due to the reduced steric hindrance in the anti conformation, resulting in a lower energy state.
The gauche conformation is often transient and can readily interconvert with other conformations through rotation around the carbon-carbon single bond. This conformational flexibility is an important factor in determining the reactivity and physical properties of molecules.
Overall, the gauche conformation is a common and important structural arrangement in organic chemistry, influencing the behavior and properties of various molecules.