Synthesis and Activity of Vanadium Oxo NHC Alkylidenes. Remarkable Preference for Degenerate Metathesis and Application for Carbon Isotope Exchange - Belov, Dmitry S. (Florida International University. Department of Chemistry and Biochemistry) ; Acosta, Carlos M. (Florida International University. Department of Chemistry and Biochemistry) ; Garcia-Molina, Miquel (Universitat Autònoma de Barcelona. Departament de Química) ; Rue, Kelly L. (Florida International University. Department of Chemistry and Biochemistry) ; Solans Monfort, Xavier (Universitat Autònoma de Barcelona. Departament de Química) ; Bukhryakov, Konstantin V. (Florida International University. Department of Chemistry and Biochemistry)