Isomerism
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Define isomer
Molecules that have the same molecular formula but the atoms are arranged differnetly
What are the two types of isomers
Structural isomerism and stereoisomerism
Define structural isomerism
Same molecular formula but different structural formulae
What are the three types of strcutrua; isomerism
Functional Position CHain
What is chain isomerism
Same molecular formula but different arangement of carbon atoms e.g. butan1ol to 2methylpropanol
What is Functional isomerism
Compounds with the same molecular formula but with atoms arranged to give different functional groups For example: Ethanol——>methoxymethane
What is position isomerism
The same functional group attatched to the main chain at differnet points for example1 chloropropane —> 2chloropropane
What is Stereoisomerism
Molecules have the same structural formula but differ in their spatial arrangement of atoms
What are the two types of stereoisomerism
Optical isomerism E-Z isomerism
What is E-Z isomerism
It tells you abt the positions of the subsitituents at either side of a C=C double bond E=opposite side Z= the two subsitituents are on the saem side
When do E-Z Isomers arise
When there is restricted rotation around the c=c bond There are two different groups/atoms attached both ends of the double bond
Which group would be the priority group (for e-z isomers only i think)
The atom with the bigger atomic number is classed as the priority atom If the atoms are the same look at the next group
How do E-Z isomerisms differ
Different boiling point
Which isomer out of Z and E has the higher boiling point and why
Z has the higher boiling point as it is a polar molecule so it has dipole dipole and van der waals whereas in E it only has Van der waals and is non polar