Stereochemical aspects of nucleophilic substitution reaction
Answers
Answer:
nucelophille donetes easily having electron affinity
Answer:
Sstereochemical aspects of nucleophilic substitution reactions
AN SN
2 reaction proceeds with complete stereochemical inversion while
an SN1 reaction proceeds with racemization.
We need to learn some basic
stereochemical principles and notations (optical activity, chirality,
retention, inversion, racemization, etc.).
Explanation:
Plane polarised light and optical activity: Certain compounds
rotate the plane polarised light.when it is passed through their
solutions. Such compounds are called optically active
compounds. The angle by which the plane polarised light is
rotated is measured by an instrument called a polarimeter. Such (+) and (–) isomers of a compound
are called optical isomers and the phenomenon is termed
optical isomerism.
Molecular asymmetry, chirality, and enantiomers: The
observation of Louis Pasteur (1848) that crystals of certain
compounds exist in the form of mirror images laid the
foundation of modern stereochemistry. He demonstrated that
aqueous solutions of both types of crystals showed optically
rotation, equal in magnitude but opposite in direction.
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