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Recent observations have shown that Nitrogen-bearing complex organic speciesare present in large quantities in star-forming regions. Thus, investigatingthe N-bearing species in a hot molecular core, such as G10.47+0.03, is crucialto understanding the molecular complexity in star-forming regions. They alsoallow us to investigate the chemical and physical processes that determine themany phases during the structural and chemical evolution of the source instar-forming regions. The aim of this study is to investigate the spatialdistribution and the chemical evolution states of N-bearing complex organicmolecules in the hot core G10.47+0.03. We used the ALMA archival data of thehot molecular core G10.47+0.03. The extracted spectra were analyzed assumingLTE. Furthermore, robust methods such as MCMC and rotational diagram methodsare implemented for molecules for which multiple transitions were identified toconstrain the temperature and column density. Finally, we used the Nautilusgas-grain code to simulate the nitrogen chemistry in the hot molecular core. Wecarried out both 0D and 1D simulations of the source and compared withobservational results. We report various transitions of nitrogen-bearingspecies (NH2CN, HC3N, HC5N, C2H3CN, C2H5CN, and H2NCH2CN) together with some oftheir isotopologues and isomers. Besides this, we also report theidentification of CH3CCH and one of its isotopologues. The emissionsoriginating from vinyl cyanide, ethyl cyanide, cyanoacetylene, and cyanamideare compact, which could be explained by our astrochemical modeling. Our 0Dmodel shows that the chemistry of certain N-bearing molecules can be verysensitive to initial local conditions such as density or dust temperature. Inour 1D model, simulated higher abundances of species such as HCN, HC3N, andHC5N toward the inner shells of the source confirm the observational findings.

Investigating the hot molecular core, G10.47+0.03: A pit of nitrogen-bearing complex organic molecules