Round 9: Tossup 16

Rates for associative substitution of this compound in metal aquo complexes gave evidence for a pre-equilibrium step in the Eigen–Wilkins mechanism. Ligands of this compound coordinated to two pyridine-bridged ruthenium centers form a classic mixed-valence complex isolated by Carol Creutz and Henry Taube. This compound causes mercury(I) (“mercury-one”) chloride to disproportionate into a black solution, hence the name “calomel.” Planctomycetota bacteria anaerobically oxidize this compound into hydrazine, which can also be done by the Olin–Raschig process. (10[1])The first maser was built with this compound due to its low barrier for umbrella inversion. This is the lightest trigonal pyramidal compound. For 10 points, the Haber–Bosch process generates (10[1])what compound with formula NH3? ■END■

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Summary