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Fluxional behavior of molecular WMe6 and of silica grafted WMe6

Using 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

A.P. thanks the Spanish MINECO for a Ramón y Cajal contract (RYC-2009-05226) and European Commission for a Career Integration Grant (CIG09-GA-2011-293900)

American Chemical Society (ACS)

Director: Ministerio de Economía y Competitividad (Espanya)
Autor: Credendino, Raffaele
Vignola, Emanuele
Poater Teixidor, Albert
Callens, Emmanuel
Basset, Jean Marie
Cavallo, Luigi
Resum: Using 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
A.P. thanks the Spanish MINECO for a Ramón y Cajal contract (RYC-2009-05226) and European Commission for a Career Integration Grant (CIG09-GA-2011-293900)
Accés al document: http://hdl.handle.net/2072/298686
Llenguatge: eng
Editor: American Chemical Society (ACS)
Drets: Tots els drets reservats
Matèria: Funcional de densitat, Teoria del
Density functionals
Compostos organometàl·lics
Organometallic compounds
Títol: Fluxional behavior of molecular WMe6 and of silica grafted WMe6
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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