A facile route to 'naked' Ag⁺ ions enabling the coordination of the weak Lewis base Ni(CO)₄.

ABSTRACT: The reaction of AgCN with two equivalents of tris(pentafluorophenyl)borane (BCF) in CH₂Cl₂ or ortho-difluorobenzene (oDFB) provides a straightforward access to (solvated) Ag⁺ salts of the weakly coordinating cyanide-bridged anion [µ-(CN)(BCF)₂]^- (suggested abbreviation [BCNB]). Reacting Ag[BCNB] with Ni(CO)₄ yields the first structurally characterized complex in which Ni(CO)₄ acts as a ligand towards a transition metal ion proving the extremely low basicity of the anion.

SUBMITTER: Berg WR 

PROVIDER: S-EPMC12613210 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature