Round 7: 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, (-5[1])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 (10[1])process generates (10[2])what compound (10[2])with formula (10[1])NH3? ■END■ (10[2]0[1])

ANSWER: ammonia [or NH3 until read; accept ammine ligand or metal ammine complexes]
<AL, Chemistry> | Packet I - McGill B, UCLA A, Michigan B, Georgia Tech C, Southampton B
= Average correct buzzpoint

Back to tossups