(c) The complex ion [Ni(CN)4] 2- is diamagnetic, whereas [NiCl4]² is paramagnetic. Use the magnetic behaviour of these complexes to determine the geometric structure of each ion. Illustrate your answer with suitable diagrams.

[Fe(OH₂)6]²+ is paramagnetic whereas [Fe(CN)6]4 is diamagnetic. Which of the following provides the best explanation for this? As a weak field ligand, H₂O induces a larger A, than CN, which is a strong field ligand. [Fe(OH₂)6]²+ is a positively charged complex whereas [Fe(CN)6]4 is a negatively charged complex. O [Fe(OH₂)6]²+ has fewer paired electrons because the pairing energy is larger than A.。. O [Fe(OH₂)6]²+ is a low spin complex while [Fe(CN)6]4 is a high spin complex.

(a) Give the chemical name of Ir(CO)CI(PPh 3 ) 2 (either of the two isomers). (b) Sketch all isomers of the octahedral complex Cr(H2O), FBrCl (hint: there are five, and two of the five are enantiomers of each other).

The complex ion Fe(CN)6³ is paramagnetic with one unpaired electron. The complex ion Fe(SCN)6³ has five unpaired electrons. Draw the crystal field diagrams of two complex ions. Which compound absorbs light with the shorter wavelength? Where does SCN- lie in the spectrochemical series relative to CN-? (hint: stronger or weaker 4. (a) (b) (c) field)