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NIST Atomic Spectra Database
Ionization Energies Data

Pt (all spectra)
78 Data Rows Found 
Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2024). NIST Atomic Spectra Database (ver. 5.12), [Online]. Available: https://physics.nist.gov/asd [2026, October 26]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
 

 Ionization  Energy 
 (cm-1) 
  72 257.8         
  149 700           
  (234 000)          
  (347 000)          
  (452 000)          
  (605 000)          
  (734 000)          
  (879 000)          
  (1 016 000)          
  [1 169 000]          
  [1 778 000]          
  (1 975 000)          
  (2 170 000)          
  (2 360 000)          
  (2 680 000)          
  (2 890 000)          
  (3 160 000)          
  (3 590 000)          
  (3 860 000)          
  (4 090 000)          
  (4 470 000)          
  (4 894 000)          
  (5 320 000)          
  (5 750 000)          
  (6 170 000)          
  (6 600 000)          
  (7 050 000)          
  (7 480 000)          
  (7 910 000)          
  (8 350 000)          
  (8 780 000)          
  (9 210 000)          
  (11 308 000)          
  (11 727 000)          
  (12 171 000)          
  (12 639 000)          
  (13 098 000)          
  (13 550 000)          
  (14 220 000)          
  (14 687 000)          
  (15 187 000)          
  (15 655 000)          
  (17 510 000)          
  (17 970 000)          
  (18 478 000)          
  (18 954 000)          
  (20 454 000)          
  (20 995 000)          
  (22 277 000)          
  [22 808 000]          
  38 027 000           
  (39 029 000)          
  (40 166 000)          
  (41 360 000)          
  (42 505 000)          
  (43 635 000)          
  (45 603 000)          
  (46 780 000)          
  (48 063 000)          
  (49 248 000)          
  (52 563 000)          
  (53 604 000)          
  (54 741 000)          
  (55 797 000)          
  (60 588 000)          
  (61 814 000)          
  (64 178 000)          
  (65 339 000)          
  (141 462 000)          
  (144 293 000)          
  (147 414 000)          
  (150 301 000)          
  (168 054 000)          
  (171 635 000)          
  (176 176 000)          
  (179 101 000)          
  (717 471 600)          
  (731 220 900)          
Notes:
a Uncertainty of the listed value is unknown.

If you did not find the data you need, please inform the ASD Team.

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