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Updated: Jun 21, 2025

Chemical Vapor Deposition of an Organic Magnet, Vanadium Tetracyanoethylene
Published on: July 3, 2015
Decreasing the Bond Order between Vanadium and Oxo Ligand to Form 3d Schrock Carbynes
Shirley Hernandez1, Dmitry S Belov1, Vasilisa Krivovicheva1
1Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States.
Abstract:
Preserving vanadium in a high oxidation state during chemical transformations can be challenging due to the oxidizing nature of V(+5) species. Oxo and similar isoelectronic ligands have been utilized to stabilize V(+5) by extensive π-donation. However, decreasing the bond order between V and the oxo ligand often results in a reduction of the metal center. Herein, we report a unique transformation involving anionic V(+5) alkylidene that converts a V(+5) oxo complex to a V(+5) alkylidyne in three steps without altering the oxidation state of the metal center. This method has been used to obtain rare 3d Schrock carbynes, which provide easy and scalable access to V(+5) alkylidynes.
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