24. Transition Metals and Coordination Compounds
Magnetic Properties of Complex Ions
Consider the following nickel(II) complexes NiCl2(PEt3)2 and Ni(NO3)2(PEt3)2. The ligand triethylphosphine (PEt3) or P(CH2CH3)3 is a monodentate ligand. It was found that NiCl2(PEt3)2 is diamagnetic, while Ni(NO3)2(PEt3)2 is paramagnetic. Determine which of the two complexes is tetrahedral and which is square planar.