Principles of Stereochemistry

What is stereochemistry?

Stereochemistry is that branch of chemistry that deals with the study of the relative spatial arrangement of atoms that can form the structure of molecules and the manipulation related to it. The branch of stereochemistry focuses on stereoisomers. Stereoisomers are defined as those that have the same molecular formula and sequence of atoms bonded but differ in the three-dimensional orientation of atoms in space. The stereochemistry beach is also known as 3D chemistry. 

What Are Chiral Molecules?

 Chiral molecules are one of the most important branches of stereochemistry. The branch of stereochemistry covers supramolecular, physical, biological, inorganic and organic chemistry. It covers the methods to determine and describe the relationships that affect the biological and physical properties that molecules impart. Additionally, they also have an effect on the reactivity of molecules. 

What Are The Different Types Of Stereochemistry?

There are many types of stereochemistry. The information related to the types of stereochemistry are mentioned below. They are as follows:

• Atropisomers 

Atropisomers are those stereoisomers that arise due to hindrance in the rotation of a single bond energy difference that happens due to steric strain or many other barriers to the rotation. These rotations can be high, leading to the disturbance in the isolation of individual conformers. 

• Cis trans isomerism 

Cis trans isomerism is also known as geometric isomerisms or configurational isomerism. Cis trans isomerism is a branch that deals with the spatial arrangement of atoms within molecules. 

• Conformational isomerism 

A conformational stereoisomerism is a form of stereoisomerism in which the isomers are interconverted by rotations about the single bonds. When two arrangements of atoms in a molecule differ by rotation around a single bond, they are known as conformations. They correspond to the local minima on the potential energy surface called the conformational isomers or conformers. 

• Diastereomer 

Diastereomers are the non-mirror images of the non-identical stereoisomers. They occur when two or more stereoisomers of a compound have different configurations at one or more stereocenters. Additionally, they can not mirror images of each other. 

• Enantiomers 

Enantiomers are the stereoisomers that are mirror images of each other and can be non-superimposable. Additionally, they cannot appear identical by the reorientation. 

What are Sn1 and Sn2 reactions?

Stereochemistry of Sn1 reactions: They are the form of substitution reactions in organic chemistry. The Sn stands for the nucleophilic substitution reaction and it is one of the most important steps in rate determination and is unimolecular. 

Stereochemistry of Sn2 reaction: It is that type of reaction mechanism that is one of the most common in organic chemistry. When one bond is broken and one form is formed simultaneously, that reaction is a kind of nucleophilic substitution reaction.

Conclusion:

The article explains the concept well in a way that it will help the students in preparing for the CSIR examination. Students should learn the basic concepts of Stereochemistry to solve the questions. The topic of Stereochemistry is vast so students should invest appropriate time to prepare for the topic for the CSIR examination.