Scheme 1. (IMAGE) Science China Press Caption (a) Typical Reactivity Modes of -N2 Units in Transition Metal-Dinitrogen Complexes; (b) This Work: Catalytic Reactivity of Mo-N2 Units in the Disproportionation of Cyclohexadienes and Isomerization of Terminal Alkenes Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.