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Updated: Apr 20, 2026

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Nitrogen atom transfer from a dinitrogen-derived vanadium nitride complex to carbon monoxide and isocyanide
Yutaka Ishida1, Hiroyuki Kawaguchi
1Department of Chemistry, Tokyo Institute of Technology , Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
Abstract:
Reduction of [(ONO)V(THF)] with KH under an N2 atmosphere cleaves the N≡N bond to afford a bis(μ-nitride) V(IV) dimer. This complex is oxidized to generate a V(V) nitride. The reactions of the V(V) nitride with carbon monoxide and isocyanide led to formation of cyanate and carbodiimide complexes. Following treatment of the cyanate complex with alkyne produces an alkyne adduct along with the release of potassium cyanate. Dissolution of the alkyne adduct in THF regenerates the starting complex [(ONO)V(THF)], thereby closing a synthetic cycle for conversion of N2 and CO into [NCO](-).
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Structural Isomerism
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly,...

