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The initiation of ring-opening metathesis polymerisation of norbornadiene by seven-coordinate molybdenum(II) compounds. X-ray crystal structure of [Mo(μ-Cl)(SnCl3)(CO)3(η4-NBD)].
Autorzy
Rok wydania
2001
Czasopismo
Journal of Organometallic Chemistry
Numer woluminu
640
Strony
72-78
DOI
10.1016/S0022-328X(01)01157-3
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The new heterobimetallic complex [Mo(μ-Cl)(SnCl3)(CO)3(η4-NBD)] (1) has been prepared by reaction of [(CO)4Mo(μ-Cl)3Mo(SnCl3)(CO)3] with norbornadiene (NBD) at room temperature. The structure of complex 1 was established by X-ray crystallography. The IR, 1H- and 13C-NMR spectra of 1 are also described and can be correlated with the crystallographically observed geometry. In the presence of an excess of NBD compound 1 initiates the ring-opening metathesis polymerisation (ROMP). The initiation mechanism of ROMP by seven-coordinate molybdenum(II) compounds have been discussed. The microstructure of polynorbornadiene formed was determined by 1H- and 13C-NMR spectroscopy.The new heterobimetallic complex [Mo(μ-Cl)(SnCl3)(CO)3(η4-NBD)] (1) has been prepared by reaction of [(CO)4Mo(μ-Cl)3Mo(SnCl3)(CO)3] with norbornadiene (NBD). The structure of complex 1 was established by X-ray crystallography. In the presence of an excess of NBD compound 1 initiates the ring-opening metathesis polymerisation. The microstructure of polynorbornadiene formed was determined by 1H- and 13C-NMR spectroscopy.
Słowa kluczowe
Molybdenum, Tin, Crystal structures, Metathesis, Polymerisation, Norbornadiene
Adres publiczny
https://doi.org/10.1016/S0022-328X(01)01157-3
Strona internetowa wydawcy
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