Chemistry Beyond the Cyano Ligand: Shape Control of Cyano Compound with Lewis Acid Scaffolds Towards Stabilize Metal Cyanoradical (M(CN2-))

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Cyanide is considered unreactive, like a halogen, however, under specific conditions it may behave as a non-innocent ligand, i.e., accept electrons (CN^2-). This non-innocence has not been investigated. We propose to answer the question: What are the guidelines where M-CN^- is reduced to “M-CN^2-“ character? We will study systems containing a cyanide protected by capping the ligand with a Lewis acid bound to the N atom of the cyanide ligand. Additionally, we plan to control the geometry of the dicyano complexes by creating a molecules that can bind to two cyanides, similar to how nature interacts with cyanide ligands.