exam3_s05_2005

exam3_s05_2005 - 5.05 - Principles of Inorganic Chemistry...

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5.05 2005 Exam 3. April 12, 2005 Instructions: This exam is closed-book. Please write on the exam paper your start and end time and do not exceed 2 h total. Write your name on the exam. Illegible answers will not be credited, so please write clearly. 1. Spin-orbit effects in main group chemistry. Based in part on your scrutiny of the Pyykkö paper, 1 a. describe each of the three terms that determine the 13 C NMR shielding for a compound such as iodomethane, and b. make a prediction as to what molecule has the largest negative 13 C NMR shift ( δ , ppm) of all, and explain your reasoning. 2. The remarkable chemistry of gold. a. What is the solvent system used in the synthesis of [AuXe 4 ] 2+ and why is the solvent choice crucial? b. Write down a balanced chemical equation corresponding to the synthesis of [AuXe 4 ] 2+ . Draw structures of all the xenon-containing products with stereochemistry clearly indicated. c.
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exam3_s05_2005 - 5.05 - Principles of Inorganic Chemistry...

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