Questions/D & F Block/Why is $$[Ni(CN)_4]^...
Complexes, Catalysts & AlloysD & F Block

Why is [Ni(CN)4]2[Ni(CN)_4]^{2-} diamagnetic while[NiCl4]2 [NiCl_4]^{2-}is paramagnetic?.

Expert Answer

CNCN^- is a strong field ligand (pairing e-, dsp2dsp^2 ). ClCl^- is weak field (unpaired e-, sp3sp^3 ).

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