KCS

Polynitrogen or nitrogen rich compounds have got a lot of attentions due to their potential value as novel high energy materials (HEMs). among the various efforts to realize the nitrogen rich compounds, synthesizing the metal-nitrogen complexes is one of meaningful suggestions as shown in the other fields using metal-nitrogen interactions. In this study, titatnium-nitrogen complexes were generated by laser ablated Ti atoms and N₂ gas molecules. These products were isolated on the pre-deposited solid Ar matrix, which enabled to be observed by infrared spectroscopy. Laser ablation of Ti with ¹⁵N₂ isotope showed the infrared spectra with distinct isotopic shift that strongly proves the formation of nitrogen species. Density functional theory (DFT) calculation was also performed to investigate the IR frequencies of products with molecular configurations, which allowed the assignment of Ti(NN)_x (x=2-6) isomer species from observed spectra.