Stereoisomerism (OCR A-Level Chemistry A): Flashcards
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Stereoisomers definition
Stereoisomers definition
Same structural formula, different 3D spatial arrangement
Two conditions for E/Z isomerism
Two conditions for E/Z isomerism
C=C bond & two different groups on each C of double bond
Cause of E/Z isomerism
Cause of E/Z isomerism
Restricted rotation around C=C double bond
Cis-trans isomerism requirement
Cis-trans isomerism requirement
Special case of E/Z; needs H on each C of double bond
Cis isomer characteristic
Cis isomer characteristic
H atoms on same side of double bond
Trans isomer characteristic
Trans isomer characteristic
H atoms diagonally opposite across double bond
Cis-trans to E/Z equivalence
Cis-trans to E/Z equivalence
Cis = Z isomer; Trans = E isomer
Z isomer definition
Z isomer definition
High priority groups on same side of double bond
E isomer definition
E isomer definition
High priority groups opposite across double bond
CIP priority rule basis
CIP priority rule basis
Based on atomic number (higher atomic no. = higher priority)