title: A Mo(VI) alkylidyne complex with polyhedral oligomeric silsesquioxane ligands: homogeneous analogue of a silica-supported alkyne metathesis catalyst.
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.
authors.affiliation: School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
authors.forename: Hyeon Mo
authors.initials: HM
authors.lastname: Cho
authors.forename: Haim
authors.initials: H
authors.lastname: Weissman
authors.forename: Scott R
authors.initials: SR
authors.lastname: Wilson
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Moore