Single Site Silica Supported Tetramethyl Niobium by the SOMC Strategy: Synthesis, Characterization and Structure-Activity Relationship in Ethylene Oligomerization Reaction
AuthorsHamieh, Ali Imad Ali
KAUST DepartmentKAUST Catalysis Center (KCC)
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AbstractSilica supported Tetramethyl niobium complex [(≡SiO)NbMe4] 2 has been isolated by surface alkylation of [(≡SiO-)NbCl3Me] 1 with dimethyl zinc in pentane. 1 can be easily synthesized by grafting of NbCl3Me2 on to the surface of partially dehydroxylated silica by the SOMC strategy. Precise structural analysis was carried out by the FTIR, advance solid state NMR, elemental analysis and mass balance techniques (gas quantification after treating 2 with degassed water) . Complex 1 was found to be active in the ethylene oligomerization to produce up to C30, whereas to our surprise complex 2 selectively dimerizes ethylene into 1-butene in the absence of a co-catalyst at the same conversion levels.
CitationHamieh A, Dey R, Nekoueishahraki B, samantaray manoja, Chen Y, et al. (2017) Single Site Silica Supported Tetramethyl Niobium by the SOMC Strategy: Synthesis, Characterization and Structure-Activity Relationship in Ethylene Oligomerization Reaction. Chem Commun. Available: http://dx.doi.org/10.1039/c7cc02585h.
SponsorsThis work was supported by funds from King Abdullah University of Science and Technology (KAUST) office of sponsored research (OSR).
PublisherRoyal Society of Chemistry (RSC)
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