Syndiospecific Transition State Structure and Syndio-Insertion Catalytic Cycle

5 Syndiospecific Transition State Structure and Syndio-insertion Catalytic Cycle 

To delineate how these many factors operate in a concerted manner to provide the necessary and sufficient conditions for the syndiospecificity of the catalytic site created with complex 1, we can now employ the constructed molecular model to devise a transition state structure that explains in a plausible manner the behavior of this very complex system and the important steps involved in the catalytic cycles. 

The working hypothesis, active site model, and the transition state structure discussed in the preceding paragraphs not only account for the syndiospecificity of the catalysts and formaticMi of the s-PP chain but they also warrant the formation of microstracmral chain defects or stereo-errors due to monomer misplacements in the backbone of the syndiotactic polymer chains, as shown pictorially in Fig. 9. 

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