What will be the correct for the wavelengths of absorption in the visible region for the following: , [Ni(NO2)6]4- , [Ni(NH3)6]2+, [Ni(H2O)6]2+?
The order of the ligand in the spectro-chemical series:
H2O < NH3 < NO2–
Hence, the wave lengths of the light observed will be in the order:
[Ni(H2O)6]2+ > [Ni(NH3)6]2+ < [Ni(NO2)6]4–
Thus, wavelength absorbed [E = hc/λ] will be in the opposite order.
What is the rule for writing the names of different ligands (neutral, negative etc.) during the naming of complexes?
Give one example of each complex in which sulphate ion acts as mondenate and bidentate ligand.