CHM136H1 Lecture Notes - Lecture 13: Handedness, Threonine, Z Notation
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CHM136H1 Full Course Notes
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5. 10 is excluded, replaced with 25. 2 on midterm. Recognizing double bonds with e,z notation is on the midterm, as well as r,s config. Chiral: objects that do not have a mirror plane. Chiral molecules and their non-superimposable mirror images are called enantiomers Source of chirality is carbon atom with 4 different substituents. This is called a chirality center or a stereocentre, below is an example of enantiomers. They are stereoisomers and are mirror images of one another. Despite having similar properties, it can be differentiated by. Many bio receptor sites are chiral - only one particular enantiomer will fit. Biological chiral molecules often have different tastes, smells, toxicities. Plane-polarized light is chiral, and chiral molecules can rotate plane-polarized light. One enantiomer rotates light to the right = (+) or d-enantiomer. One rotates to the left instead = (-) or l-enantiomer. Specific rotation is a measure of its optical activity, [alpha]d. Rotate molecule to put lowest priority group at the back.
