A Mo(VI) alkylidyne complex with polyhedral oligomeric silsesquioxane ligands: homogeneous analogue of a silica-supported alkyne metathesis catalyst |
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| Authors: | Cho Hyeon Mo Weissman Haim Wilson Scott R Moore Jeffrey S |
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| Institution: | School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. |
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| Abstract: | A highly active alkyne metathesis catalyst is realized by replacing the amide ligands of a molybdenum(VI) trisamide alkylidyne complex with silanol groups from incompletely condensed POSS (polyhedral oligomeric silsesquioxane) ligands. This catalyst serves as an effective homogeneous mimic of an amorphous silica-supported catalyst. Reactivities of various catalytic mixtures are reported along with an X-ray structure of the aniline-coordinated amidodisiloxymolybdenum(VI) alkylidyne complex. |
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