Autoren:	Kitzmann, Winald R. Heinze, Katja
Titel:	Charge-transfer and spin-flip states : thriving as complements
Online-Publikationsdatum:	9-Feb-2023
Erscheinungsdatum:	2022
Sprache des Dokuments:	Englisch
Zusammenfassung/Abstract:	Transition metal complexes with photoactive chargetransfer excited states are pervasive throughout literature. Especially [Ru(bpy) 3 ] 2+ (bpy = 2,2’-bipyridine) with its long-lived triplet metal-toligand charge-transfer emission has been established as a key model complex in the past decades. Meanwhile, interest in luminescence and reactivity of so-called spin-flip metal-centered states has risen dramatically after the Molecular Ruby [Cr(ddpd) 2 ] 3+ (ddpd = N , N ’dimethyl- N , N ’-dipyridin-2-yl-pyridine-2,6-diamine) unveiled design principles to access strong, long-lived emission from photostable chromium(III) complexes. This review contrasts the properties of emissive charge-transfer and spin-flip states illustrated with the prototypical complexes [Ru(bpy) 3 ] 2+ and [Cr(ddpd) 2 ] 3+ . First, we discuss the nature of the relevant excited states, their tunability with regards to energy and lifetime, and their responses to external stimuli. The final section identifies strengths and weaknesses of the charge transfer and spin-flip states in applications such as photoredox catalysis, sensing and circularly polarized luminescence (CPL).
DDC-Sachgruppe:	540 Chemie 540 Chemistry and allied sciences
Veröffentlichende Institution:	Johannes Gutenberg-Universität Mainz
Organisationseinheit:	FB 09 Chemie, Pharmazie u. Geowissensch.
Veröffentlichungsort:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8311
Version:	Published version
Publikationstyp:	Zeitschriftenaufsatz
Weitere Angaben zur Dokumentart:	Scientific article
Nutzungsrechte:	CC BY-NC-ND
Informationen zu den Nutzungsrechten:	https://creativecommons.org/licenses/by-nc-nd/4.0/
Zeitschrift:	Angewandte Chemie : International edition Version of Record (VoR)
Seitenzahl oder Artikelnummer:	e202213207
Verlag:	Wiley-VCH
Verlagsort:	Weinheim
Erscheinungsdatum:	2022
ISSN:	1521-3773
DOI der Originalveröffentlichung:	10.1002/anie.202213207
Beziehungen:	is version of 10.25358/openscience-10133
Enthalten in den Sammlungen:	DFG-491381577-H