hindered rotation meaning in Hindi

Examples

1. "' Atropisomers "'are stereoisomers arising because of hindered rotation about a conformers.
2. Determining the axial stereochemistry of biaryl atropisomers can be accomplished through the use of a Newman projection along the axis of hindered rotation.
3. Heteroaromatic analogues of the biphenyl compounds also exist, where hindered rotation occurs about a carbon-nitrogen or a nitrogen-nitrogen bond.
4. The existence of specific conformations is due to hindered rotation around sigma bonds, although a role for hyperconjugation is proposed by a competing theory.
5. In 1940 he received from the University of Michigan his PhD under David M . Dennison with thesis " Hindered rotation in methyl-alcohol ".