Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The sixth spectrum of platinum (Pt VI)



Vladimir I. Azarov, R R. Gayasov


The spectrum of platinum was observed in the (300 to 2100) A wavelength region. The (5d5 + 5d46s) - 5d46p transition array of five times ionized platinum, Pt VI, has been investigated and 1390 spectral lines have been classified in the region of (399 to 1564) A. The analysis has led to the determination of the 5d5, 5d46s and 5d46p configurations. All 37 theoretically possible 5d5 levels, 46 of 63 possible 5d46s levels and 167 of 180 possible 5d46p levels have been established. The orthogonal operators technique was used to calculate the level structure and transition probabilities. The energy parameters have been determined by the least squares fit to the observed levels. Calculated transition probability and energy values, as well as LS-compositions obtained from the fitted parameters are presented. The uncertainties of the established energy levels and calculated (Ritz) wavenumbers are included.
Atomic Data and Nuclear Data Tables


spectral line identification, energy level, atomic spectrum, vacuum ultraviolet, five times ionized platinum, Pt5+.


Azarov, V. and Gayasov, R. (2016), The sixth spectrum of platinum (Pt VI), Atomic Data and Nuclear Data Tables, [online], (Accessed June 13, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created November 25, 2016, Updated July 3, 2023