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 (10[1])process. (10[1])The first maser was built with this compound (10[1])due to its low barrier for umbrella inversion. This is the lightest trigonal pyramidal compound. For 10 points, the Haber–Bosch process (10[1])generates what compound with formula NH3? ■END■

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Summary