Zn I spectra in the 1300-6500 cm−1 range

•We report 47 new Zn I lines in the range of 1300-6400 cm−1.•We determine energies of 5g, 6g, 7f, 6h, 7h and 8h states of Zn I.•Using quantum defect theory, we calculate a large list of transition probabilities.

We study spectra of a plasma created by the laser ablation of ZnS targets in a vacuum and report 47 (not observed previously) Zn I lines in the range of 1300-6400 cm−1. From the recorded spectra we determine energies of 5g, 6g, 7f, 6h, 7h and 8h Zn I levels. We also calculate a large list of transition probabilities and oscillator strengths for Zn I in the observed spectral range.