COMPLEXE'S
Ligandsubstitution reactions and the accompanying colour
changes in the formationof
2
uintyle motif and cucia from CV H2O 6
3 2016337
ernie 6 from or
Ligandsubstitution reactions
Reaction in which a ligand in a complex ion is replaced
by another ligand
In many ligand substitution reactions watermolecules in an
aqueoussolution of a complex ion arereplaced by another
ligand
Reaction of Aqueous copper ii ions and ammonia
ᵗ
CU H2O 6 Aq 4NH3Ag Cu NH 3 almo 2 caq 4 had
pale blue deep blue
product Ccu Nhs H2o is an octahedral complex ion
C O bonds are
H3N Hs longer than c N bonds
CU so has a distorted
H3N ThNH octahedral shape
042
Reaction of copper ii ions and hydrochloric acid
2
u H2o g lag 4C Aq Cucia Agl 6H20C
pale blue yenow