👉 In chemistry, a polycyanide is a compound that contains two or more polycyclic aromatic hydrocarbons (PAHs). PAHs are a type of organic molecule with a linear chain of carbon atoms arranged in a pentagonal shape. The term "polycyanide" refers to the arrangement and geometry of these polycyclic aromatic hydrocarbons. Polycyanides have been identified through spectroscopic methods, such as the UV/Vis absorption spectrum or Raman spectra
