ðɪ ɛkspˈoʊzd sˈaɪt ɔnðə zɜːkˈoʊniəm ɐlˈaʊz fɔːɹ koʊˈɔːɹdᵻnˈeɪʃən ʌv ˈælkiːnz, wˈɛɹəpˌɑːn mˈaɪɡɹətˌoːɹi ɪnsˈɜːʃən ˌɪntʊ ðə ɹᵻmˈeɪnɪŋ kˈɑːɹbənmˈɛθəl lˈɪɡænd ɡˈɪvz ɹˈaɪz tʊ ɐ pɹˈoʊpəl lˈɪɡænd ðɪs pɹˈɑːsɛs kəntˈɪnjuːz ɹɪzˈʌltɪŋ ɪnðə ɡɹˈoʊθ əvə pˈɑːlɪmɚ tʃˈeɪn.
The exposed site on the zirconium allows for coordination of alkenes, whereupon migratory insertion into the remaining carbon-methyl ligand gives rise to a propyl ligand this process continues resulting in the growth of a polymer chain.