Air-Stable Tetrazene Radical Cation Salts: Structural Requirements and Oxidation Catalysts.

ABSTRACT: In this study, stable tetrazene radical cation salts were synthesized and characterized for the first time. The radical cation derived from 1,2-di(2-azaadamantan-2-yl)diazene (DAD) was isolated as an air-stable solid, retaining its integrity for at least 120 days at ambient temperature (∼25 °C) and pressure. X-ray crystallography and electron spin-resonance spectroscopy revealed the delocalization of the unpaired electron over the tetrazene core and into the adamantane framework. DAD undergoes two well-separated, reversible redox processes and displays high catalytic activity for alcohol oxidation under mild conditions. Systematic structural modifications identified the key framework features governing the radical cation stability and catalytic performance.

SUBMITTER: Oshiro A 

PROVIDER: S-EPMC12814318 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature