Electron-driven molecular processes for cyanopolyacetylenes HCN ( = 3, 4, and 5).

Linear carbon series cyanopolyacetylenes (HCN) ( = 3, 4, and 5) are astromolecules found in the atmosphere of Titan and interstellar media such as TMC-1 (Taurus molecular cloud-1). All these compounds are also detected in IRC + 10 216. In the present work, we comprehensively investigate electron interaction with important cyanopolyacetylene compounds, HCN (cyano-tri-acetylene), HCN (cyano-tetra-acetylene), and HCN (cyano-penta-acetylene).