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Photoelectron imaging of PtI2− and its PtI− photodissociation product

Gibbard, Jemma A. and Verlet, Jan R. R. (2022) 'Photoelectron imaging of PtI2− and its PtI− photodissociation product.', Journal of chemical physics., 156 (13). p. 134303.


The photoelectron imaging of PtI2− is presented over photon energies ranging from hν = 3.2 to 4.5 eV. The electron affinity of PtI2 is found to be 3.4 ± 0.1 eV, and the photoelectron spectrum contains three distinct peaks corresponding to three low-lying neutral states. Using a simple d-block model and the measured photoelectron angular distributions, the three states are tentatively assigned. Photodissociation of PtI2− is also observed, leading to the formation of I− and of PtI−. The latter allows us to determine the electron affinity of PtI to be 2.35 ± 0.10 eV. The spectrum of PtI− is similarly structured with three peaks which, again, can be tentatively assigned using a similar model that agrees with the photoelectron angular distributions.

Item Type:Article
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Publisher statement:© 2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (
Date accepted:15 March 2022
Date deposited:07 April 2022
Date of first online publication:06 April 2022
Date first made open access:07 April 2022

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