Operational Test for an Associative Mechanism

4 Operational Test For an Associative Mechanism 3.4.1 Assodative Mechanism Rate Law [Pg.54]

The A mechanism proceeds by formation of an intermediate with the entering group followed by elimination of the leaving group, as shown by the following sequence [Pg.54]

If a steady state is assumed for the intermediate and pseudo-first-order conditions are maintained with [Y] [RX], then [Pg.54]

The rate should always be first-order in [Y], and the rate law contains no information that uniquely defines an A mechanism. [Pg.55]

A rather unlikely but feasible possibility is that the intermediate is formed in a rapid pre-equilibrium, as shown in the following [Pg.55]

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