Spin propensity in resonant photoemission of transition metal complexes

Resonant photoelectron spectroscopy (RPES) has been used to probe electronic structure properties of the closed-shell [Fe^{II}(CN)_{6}]^{4−} and open-shell [Fe^{III}(CN)_{6}]^{3−} prototype transition metal complexes in aqueous solution. Site-selective Fe 2p (L-edge) RPES maps provide new insight in...

Full description

Bibliographic Details
Main Authors: Robert H. Temperton, Wilson Quevedo, Robert Seidel, Jens Uhlig, Joachim Schnadt, Petter Persson
Format: Article
Language:English
Published: American Physical Society 2021-07-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.3.033030
Description
Summary:Resonant photoelectron spectroscopy (RPES) has been used to probe electronic structure properties of the closed-shell [Fe^{II}(CN)_{6}]^{4−} and open-shell [Fe^{III}(CN)_{6}]^{3−} prototype transition metal complexes in aqueous solution. Site-selective Fe 2p (L-edge) RPES maps provide new insight into spin-coupling processes at the core-excited metal centers, with autoionization of [Fe^{III}(CN)_{6}]^{3−} showing a dramatic (∼4×) singlet versus triplet final-state enhancement. This shows that RPES provides unique opportunities to study spin-dependent electronic properties in transition metal based functional materials.
ISSN:2643-1564