Nihar Ranjan Behera

Abstract The triatomic molecule ozone (O\(\vphantom{0}_3\)) is of outmost physical and chemical importance in the atmospheres of our Earth and other planets. Beyond its environmental significance, a detailed understanding of the electronic structure and ionization dynamics of ozone is essential for modeling atmospheric, ionospheric, and astrochemical processes.

RESULTS AND DISCUSSION On photoexcitation of quinoline monomers [129 u (unified atomic mass unit)] at 266 nm, with low laser intensities ranging between 104 and 106 Wcm−2, we observed an unexpectedly dominant formation of a heavier-than-parent cation at 142 u, as shown in Fig. 1. The yield of this heavier-than-parent cation at 142 u was nearly 140 times larger than that of the parent cation at 129 u. The cation peaks corresponding to the daughter masses are also seen.