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Chapter 5

Chemical Kinetics and Reaction Mechanisms. Chapter 5. Complex Mechanisms – Intermediates and Numerical Solution. Prof. Kyoung -Ho Park. Chapter 5. Complex Mechanisms-Intermediates. The methods used to verify the intervention of an intermediate: 1. Trapping method

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Chapter 5

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  1. Chemical Kinetics and Reaction Mechanisms Chapter 5 Complex Mechanisms – Intermediates and Numerical Solution Prof. Kyoung-Ho Park

  2. Chapter 5. Complex Mechanisms-Intermediates • The methods used to verify the intervention of an intermediate: 1. Trapping method 2. Competition kinetics

  3. Chapter 5. Complex Mechanisms-Intermediates 5.1 Identification of the intermediate • 5.2 The reactivity of intermediates

  4. 5.1 Identification of the intermediate Without trapping T, P is the product; with T added, a new Product Q is also formed. The identification of Q by isolation or by spectroscopy serves in the first instance to verify that the reaction really does proceed by way of an intermediate.

  5. 5.2 The reactivity of intermediates

  6. - 1-AdOCO2X : 1-adamantyl halrofomate  - ROH, R'OH : alcohols Hint : Steady-state approximation method 이용 k2       [1-AdOCO2R][R'OH]o [P1][R’OH]o --   ＝ ----------------------------------- = ----------------- k3       [1-AdOCO2R'][ROH]o [P2][ROH]o 단, [ROH]o, [R'OH]o및[A]o를 초기농도라고 가정한다.

  7. 5.3 kineticProbes and Radical Clock

  8. 5.4 Other Tests for Reaction Intermediates

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