Stereoisomerism (AQA A-Level Chemistry): Flashcards
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Stereoisomerism definition
Stereoisomerism definition
Same structural formula, different spatial arrangement of atoms
Most common form of stereoisomerism
Most common form of stereoisomerism
E/Z isomerism (geometric isomerism)
Cause of E/Z isomerism
Cause of E/Z isomerism
Restricted rotation around bond
Why restricted rotation occurs around
Why restricted rotation occurs around
Pi bond prevents free rotation
Requirement for E/Z isomerism
Requirement for E/Z isomerism
Each C of double bond has two different groups
Z isomer definition
Z isomer definition
Highest priority groups on same side of double bond
E isomer definition
E isomer definition
Highest priority groups on opposite sides of double bond
CIP priority rule: basic principle
CIP priority rule: basic principle
Higher atomic number = higher priority
CIP priority when directly attached atoms are same
CIP priority when directly attached atoms are same
Look at atoms further down the chain
Significance of E/Z isomerism
Significance of E/Z isomerism
Affects physical and chemical properties of compounds