Lecture

Phosphine Dissociation Mechanisms

Description

This lecture explores the mechanisms of olefin coordination and phosphine dissociation experiments, focusing on differentiating between associative and dissociative pathways, determining the dependence on phosphine concentration, and entropy of activation. The Eyring equation is introduced to calculate the activation entropy. Ligand effects on the catalytic center and the trans effect on ligand dissociation are discussed, along with computational studies and catalyst activation by phosphine dissociation. The origin of increased reactivity in catalysts and the implications for different applications are also covered, emphasizing the importance of catalyst initiation rates and ligand properties.

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