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BMP Wk2:

Week 2- Organic Molecules III

QuestionAnswer
what are isomers? compounds with the same molecular formula but atoms arranged differently in space leading to different chemical or physical properties
types of isomerism? structural, stereoisomers, positional, functional group and optical
types of structural isomers? branched, positional or functional
what is a branched chain structural isomer? carbon atoms arranged differently in chain
what is positional chain structural isomer? functional groups attached to different points in main chain
what are functional group structural isomers? have different functional groups
what are stereoisomers? same structural formula but different spatial arrangement
types of stereoisomers? geometric and optical
what are the types of isomers in geometric isomers? cis (Z) and (E) trans
what would happen if a rotation occurred in a cis-trans isomer? break pi bond within the double bond
requirements for a cis-trans isomerism? rotation must be restricted in molecule and there must be two non-identical groups on each double bonded carbon atom
describe E isomer? two high priority groups on different sides
describe Z isomer? two high priority groups on the same side
optical isomers? same molecular and structural formula but cannot be superimposed, where the chiral carbon is surrounded by 4 different groups
what are the two different forms of optical isomers called? enantiomers
R chiral carbon? clockwise direction of priority group
S chiral carbon? anticlockwise direction of priority groups
what optical isomer form of ibuprofen is active? S-form
what optical isomer of thalidomide is effective as a sedative? R-form of thalidomide
what optical isomer of thalidomide causes severe birth defects? S-form
Created by: shuriken
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