For
example, removal of water
from [Ti(H2O)6]Cl3 on heating
renders 
it 
colourless Similarly, anhydrous CuSO4
is white, but CuSO4 5H2O is
blue in colour The influence
of the ligand on the colour
of a complex may be illustrated by considering the [Ni(H2O)6]
2+ complex,
which forms when nickel(II) chloride is dissolved in water