KAUST DepartmentKAUST Catalysis Center (KCC)
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
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AbstractUsing DFT methods we describe the fluxional behavior of mono-, bi-, and tripodal W(CH3)6 species grafted on partially dehydroxylated silica. Our results show that the umbrella inversion mechanism described to explain the fluxionality of the parent W(CH3)6 molecule is not operative after grafting on silica. Low-energy turnstile rotations are instead operative for all considered species, correlating the experimental values found in solid-state NMR.
SponsorsA.P. thanks the Spanish MINECO for a Ramon y Cajal contract (RYC-2009-05226) and European Commission for a Career Integration Grant (CIG09-GA-2011-293900). L.C. thanks the ENEA (www.enea.it) and the HPC team for support and for use of ENEA-GRID and the HPC facilities CRESCO (www.cresco.enea.it) Portici (Naples), Italy. Research published in this article was supported by the King Abdullah University of Science and Technology.
PublisherAmerican Chemical Society (ACS)