Synthesis of trans-Isotactic Poly(norbornene)s through Living Ring-Opening Metathesis Polymerization Initiated by Group VI Imido Alkylidene N-Heterocyclic Carbene Complexes
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DOI: 10.1021/acs.macromol.9b00422
Abstract: The selectivity of several molybdenum and tungsten imido alkylidene N-heterocyclic carbene (NHC) complexes in the ring opening metathesis polymerization (ROMP) of enantiomerically pure endo,exo-2,3-dicarbomethoxynorborn-5-ene (DCMNBE) was examined by 1H- and 13C NMR spectroscopy. With one… read more here.
Keywords: imido alkylidene; alkylidene heterocyclic; trans isotactic; heterocyclic carbene ... See more keywords
Reaction Mechanism of Ring-Closing Metathesis with a Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Catalyst
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DOI: 10.1021/acs.organomet.0c00311
Abstract: DFT calculations were carried out to explore all relevant pathways for the ring-closing metathesis (RCM) reaction of a cationic molybdenum imido alkylidene N-heterocyclic carbene (NHC) catalyst wit... read more here.
Keywords: imido alkylidene; cationic molybdenum; alkylidene heterocyclic; molybdenum imido ... See more keywords
Tuning the Latent Behavior of Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes in Dicyclopentadiene Polymerization
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DOI: 10.1021/acs.organomet.0c00740
Abstract: We report the synthesis of O- and N-chelated hexacoordinated molybdenum imido alkylidene N-heterocyclic carbene (NHC) bistriflate and pentacoordinated molybdenum imido alkylidene NHC monotriflate monoalkoxide complexes and their use as thermally latent and in some cases… read more here.
Keywords: molybdenum imido; alkylidene heterocyclic; polymerization; imido alkylidene ... See more keywords