plz explain why the complex [Ti(H2O)6]+3IS COLOURED ? How does the colour change on heating ?
In [Ti(H2O)]3+ complex, d-d transition takes place between t2g and eg of d-subshell. The electron get excited to higher energy level when exposed to high energy. When electron returns to its ground state, it emits energy of particular wavelength, due which element shows colour. The d-d transition can be seen in figure given below.
