Since the carbenes that are studied so far are associated with positive free energy change, these reactions are thermodynamically restricted. These reactions are only helpful to activate the N 2 molecule. Henceforth, these reactions should be coupled with other reactions to make a complete process thermodynamically feasible. In various ways, this could be achieved. The activated nitrogen may be converted to ammonia or other useable compounds that are associated with considerable negative free energy change. There is another way to stabilize the unstable diazo derivative. Selected chemicals may be employed that will play down the free energy of the reaction. The modeling of carbene may also lead to the thermodynamically acceptable production of diazo derivatives. These three approaches are followed in the present study.