Lesson Slideshow Section 01
Unit Summary Section 02
Key Concepts
SN1/SN2 Mechanisms, Stereoisomerism, Spectroscopic Identification
Assessment Objectives
Identify chiral centers, Differentiate SN1 vs SN2, Interpret NMR/IR spectra
Prior Knowledge Needed
Covalent bonding, molecular geometry, hybridization (S2.1, S2.4)
IB Syllabus Reference
S2.5, R3.2
Interactive Study GuideClick here to view the full, detailed topic summary for this unit.
29
Cu
63.546
Video Lesson Section 03
HL Video Lessons
2 Extensions Available
Organic Reaction Mechanisms [HL]
Spectroscopic Identification of Organic Compounds [HL]
Practice Quiz Section 04 · Interactive
10
Ne
20.180
Vocabulary Review Section 05
Chiral Center
A carbon atom bonded to four different groups, resulting in optical activity.
Enantiomer
Non-superimposable mirror image isomers.
Retrosynthesis
Planning a synthesis by working backwards from the product to starting materials.
Optical Activity
The ability of a chiral substance to rotate plane-polarized light.
SN1 Mechanism
First-order nucleophilic substitution involving a carbocation intermediate (common in tertiary halides).
SN2 Mechanism
Second-order nucleophilic substitution involving a single transition state (common in primary halides).
Diastereomer
Stereoisomers that are not mirror images of each other.
Resolution
The process of separating a racemic mixture into its individual enantiomers.
26
Fe
55.845
Revision Notes Section 06
79
Au
196.967
Practice Tests Section 07
17
Cl
35.45
Worksheets & Labs Section 08