The ligand shown at the end of the problem, 16-S-4, forms the complex [Hg(16-S-4)] 2+ . The
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The ligand shown at the end of the problem, 16-S-4, forms the complex [Hg(16-S-4)]2+. The solution 1H NMR spectrum of [Hg(16-S-4)][ClO4]2 consists of two signals at δ 3.40 and 2.46 ppm with relative integrals of 2:1. From the spectrum, the following coupling constants can be measured:
(a) Explain why complex formation between Hg(II) and S-donor ligands is particularly favoured.
(b) What coordination number do you expect for the Hg(II) centre in [Hg(16-S-4)]2+? On what basis have you made your choice?
(c) Sketch the 1H NMR spectrum of [Hg(16-S-4]-[ClO4]2.
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a Complex Formation between HgII and SDonor Ligands Complex formation between HgII and sulfurdonor ligands such as in the 16S4 ligand is particularly favored due to the softsoft interaction according ...View the full answer
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