Synthesis and structures of bimetallic silicon-containing imido alkylidene complexes of molybdenum Me2Si[CHMo(NAr)(ORF3)2]2 and PhVinSi[CHMo(NAr)(ORF3)2]2 |
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Authors: | Yulya P. Barinova Gleb A. Abakumov |
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Affiliation: | G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, Tropinina 49, Nizhny Novgorod 603950, Russian Federation |
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Abstract: | Bimetallic alkylidene complexes of molybdenum (RF3O)2(ArN)MoCH-SiMe2-CHMo(NAr)(ORF3)2 (1) and (RF3O)2(ArN)MoCH-SiPhVin-CHMo(NAr)(ORF3)2 (2) (Ar = 2,6-C6H3; RF3 = CMe2CF3) have been prepared by the reactions of vinyl silicon reagents Me2Si(CHCH2)2 and PhSi(CHCH2)3 with known alkylidene compound PhMe2C-CHMo(NAr)(ORF3)2. Complexes 1 and 2 were structurally characterized. Ring opening metathesis polymerization (ROMP) of cyclooctene using compounds 1 and 2 as initiators led to the formation of high molecular weight polyoctenamers with predominant trans-units content in the case of 1 and predominant cis-units content in the case of 2. |
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Keywords: | Bimetallic alkylidene complexes Molybdenum Silicon Synthesis Structure elucidation Cyclooctene |
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