STEREOCHEMISTRY Flashcards
1
Q
Define isomers
A
same chemical formula
different structural formula
2
Q
What are structural isomers
A
bonded together but in a different order in each isomer
3
Q
What are stereoisomers
A
same bonding order
different spatial arrangement
4
Q
What are geometric isomers
A
have C=C double bond
must have 2 different groups on each C
5
Q
What are cis isomers
A
groups on same side
(cis = same)
6
Q
What are trans isomers
A
groups on different side
7
Q
What has higher bp, cis or trans isomers
A
cis
more polar
8
Q
What has a higher mp, cis or trans
A
trans
close packing = stronger LDF
9
Q
Traits to identify optical isomers
A
chiral carbon
asymetric
same physical and chemical properties
rotate plane polarised light
Racemic mixture cancels effect on plane polarised light
10
Q
A
