amine CA
y
n d c
on
µ n
two need to know
Glycine 2 aminoethanoicacid alanine 2 aminopropanoicacid
in Eon in Eon
Properties
MeltingPoints
Crystallinesolids withhighMPs
Twitterions form Ions whichhave a permanent positive but
negativecharge
are overallneutral
instead weaker H bonds I intermolecular Zwitterions have much
of
stronger ionic attractions
forces
between one ion I
its neighbours
I take more to breaksoamino acid have high Mps
energy
Solubility
Soluble in water insoluble in non polar
organicsolvents
solid aminoacid replaced
ionic attractionsbetween
between polar H2o I
ions in
Zwitterions bystrongattractions
solubilitydecreases as R group gets longer
Optical activity
apartfrom glycine all AA are optically active as they have 4 different groups
attached to thecarbonatom
alanine H
c
Mooc My
nay
pun if Coom
, Reactions
NMyth.ttNB Loon COO ht
E coon u
uzu n c coo
r
AminoAcid Zwitterion
in Acidic
un coom pet h3Ñ C coon
i
large conc of htion
92 E It pushedEhs use upextant
in Alkaline
42N coom 42N if coo Ht
low conc of it ions
Matteo re Piste its makemoreat
Atcertain ph isoelectric point
42N coom I Hgn
co k
Zwitterion
y
n d c
on
µ n
two need to know
Glycine 2 aminoethanoicacid alanine 2 aminopropanoicacid
in Eon in Eon
Properties
MeltingPoints
Crystallinesolids withhighMPs
Twitterions form Ions whichhave a permanent positive but
negativecharge
are overallneutral
instead weaker H bonds I intermolecular Zwitterions have much
of
stronger ionic attractions
forces
between one ion I
its neighbours
I take more to breaksoamino acid have high Mps
energy
Solubility
Soluble in water insoluble in non polar
organicsolvents
solid aminoacid replaced
ionic attractionsbetween
between polar H2o I
ions in
Zwitterions bystrongattractions
solubilitydecreases as R group gets longer
Optical activity
apartfrom glycine all AA are optically active as they have 4 different groups
attached to thecarbonatom
alanine H
c
Mooc My
nay
pun if Coom
, Reactions
NMyth.ttNB Loon COO ht
E coon u
uzu n c coo
r
AminoAcid Zwitterion
in Acidic
un coom pet h3Ñ C coon
i
large conc of htion
92 E It pushedEhs use upextant
in Alkaline
42N coom 42N if coo Ht
low conc of it ions
Matteo re Piste its makemoreat
Atcertain ph isoelectric point
42N coom I Hgn
co k
Zwitterion
