Knowledge Bank

The $A2-X2\Sigma$ transition of ZrN between 5631 and 5879 \AA has been studdied using laser induced fluorescence spectroscopy. ZrN was produced by reacting vaporized $ZrCl4$ with microwave discharged $N2$ gas. All the 12 branches of the (0,0) and (1,1) bands have been observed and assigned. Various perturbations in v = 0 and 1 level of the $\mathrm{<mrow\; data-mjx-texclass="ORD">2</mrow>}\Pi$ state have been found, The magnetic hyperfine structure of the $\mathrm{<mrow\; data-mjx-texclass="ORD">91</mrow>}Zrn$ has also been identified, Molecular constants of both the $A2\Pi$ and $X2\Sigma$ states of four isotopic molecules will be reported.