In an isotope labeling experiment of the photolysis reaction, it is observed that methylene is produced from the diazirine or diazomethane which again reproduces diazomethane by the reaction of newly generated methylene with the neighboring nitrogen. This outcome asserted that the sequestering of nitrogen using carbene is feasible which was further strengthened by Shilov et al. A similar kind of phenomenon was observed in the solution phase too. The reaction between carbene and N 2 is well investigated with the help of quantum chemical tools. Liu et al. concluded from the experiments and theoretical studies that the thermal decomposition of diazirine compounds produces carbene and diazo compounds. The formations of the diazo derivatives and carbene compounds are controlled by the effect of the substituents of the diazirines. The C 60 probe was employed to confirm that carbene is produced in this reaction. It is affirmed that the rebound reaction of N 2 with carbene forms the diazo compounds.