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題組內容

14. Which one of two similar reactions occurs more rapidly and give your reasoning:

(a) The oxidative addition of [Co(dppe)₂]⁺ or [Ir(dppe)₂]⁺ with H₂ (6%).

其他申論題

10. Transition-metal d-d transition is Laporte (orbitally) forbidden and a transition-metal complex is usually lightly colored in solution. Explain why KMnO₄ dissolves in water and becomes a deep blue solution (6%).

11. The reaction of CrCl₃ with PhLi is complicated. One neutral product contains one chromium atom and four Ph groups. Based on the 18-electron rule, draw a possible structure and give your reason (6%).

12. Write an IUPAC name for K₂[Fe(en)₂(CN)₂] (4%), write the electron configuration in a crystal field and calculate the related crystal field stabilization energy in Dq values (6%).

13. One student found that the reaction of Fe(CO)₅ with Me₃NO produced Fe(CO)₄(NMe₃) and CO₂. Propose a detailed mechanism (8%).

(b) The migratory insertion of [CpMo(CO)₃Me] or [CpMo(CO)₃(CF₃)] with PPh₃ (6%).

1. Which of the following compounds should be stabilized by resonance to a greater extent? Please account for your answer.

2. Draw the most stable conformation of the following compounds.

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