Isomers are terms used to describe relationships between similar molecules.
If you are confused by how to solve for IHD, refer to my Index of Hydrogen Deficiency topic.
*These are also known as structural isomers.
Concept: Determining when molecules are stereoisomers.2m
Heads up: The terms enantiomers, diastereomers, and meso compounds are all used to describe specific types of stereoisomers- we’ll get to those later in this chapter.
Concept: Determining when molecules are conformers.2m
Since conformers are simply rotations along single bonds, these would also count as identical molecules; they can easily twist back into position with each other.