14. In the homogeneous catalytic hydrogenation of cyclohexene, cyclohexane can be formed via Rh-transition metal catalysis. One of the final steps of the catalytic cycle for this reaction is shown below. For each metal complex: Provide the oxidation state of the metal center, the d-electron count of the metal, and the total number of valence electrons around the metal. CI Ph3P... Ph3P Rh-Cl Ph3P Ph3P oxidation state: d-electron count: total electron count: Rh T H oxidation state: d-electron count: total electron count:
Catalysis and Enzymatic Reactions
Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.
Lock And Key Model
The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.
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