KCS

The tetrazine ring is the most electron deficient aromatic ring in the CHON chemistry, and in particular in some cases displays a n-π^* transition which gives rise to a particular fluorescence with especially long decay times because of the forbidden character of the transition. n-π^* transition whose position is dependent on the substituents. These properties make tetrazine based molecules and materials attractive targets for devices targeted for optical and electrochemical applications. In addition, low band gap could be expected from structures alternating tetrazine rings and any electron-rich moiety like thiophene. Therefore we will report thiophene substituted tetrazine and preparation of its iridium complexes for studies of their electrochemical and optical properties.