organic chemistry chapter 5 stereo
chemistry
book ORGANIC CHEMISTRY
edition tenth global edition
whriter LEROY G. WADE, JR.
organic chemistry chapter 5 stereo chemistry 1
, Summary:
Chapter 5 of Organic Chemistry covers the concept of stereochemistry, which is the study
of 3D molecular structures. It introduces isomers, with a focus on constitutional and
stereoisomers. The chapter also discusses chirality, explaining concepts such as chiral and
superimposable molecules, and chiral carbon atoms. The (R) and (S) nomenclature of
asymmetric carbon atoms is explained, along with optical activity and the use of
polarimetry. The chapter also covers biological discrimination of enantiomers, racemic
mixtures, enantiomeric excess and optical purity, chirality of conformationally, chiral
compounds without asymmetric atoms, Fischer projections, diastereomers, meso
compounds, absolute and relative configuration, physical properties of diastereomers, and
resolution of enantiomers.
organic chemistry chapter 5 stereo chemistry 2
, 5-1 introduction
stereochemistry is the study of 3D molecular structures.
molecules with different structures but the same atoms are called isomers. we can split these in
two broad classes: constitutional isomers and stereoisomers.
Constitutional isomers (structural isomers): differ in their bonding sequence; their atoms
are connected differently.
Stereoisomers (also called configurational isomers) have the same bonding sequence, but
they differ in the orientation of their atoms in space
an example of a stereoisomer is butenedioic acid. these two molecules have the exact same
bonds accept that in one case both acid groups are on the same side. this gives the two molecules
different functionality’s.
5-2 chirality
chiral: an object that has a mirror image that is different from the original object.
organic chemistry chapter 5 stereo chemistry 3