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Synthesis and Photophysical Evaluation of 3,3’‐Nitrogen Bis‐Substituted $fac$‐[Re(CO)$_3$(Diimine)Br] Complexes


Csucker, Joshua; Decrausaz, Nathalie; Jäggi, Sarah Isabella; Blacque, Olivier; Spingler, Bernhard; Alberto, Roger (2024). Synthesis and Photophysical Evaluation of 3,3’‐Nitrogen Bis‐Substituted $fac$‐[Re(CO)$_3$(Diimine)Br] Complexes. Helvetica Chimica Acta, 107(2):e202300239.

Abstract

The preparations, photophysical and electrochemical properties of a series of fac‐[Re(CO)$_{3}$(diimine)Br] complexes are presented. The bipyridine (bpy) based diimine ligands feature symmetrical and asymmetrical 3,3’‐diamino‐2,2’‐bipyridine substitution patterns. Photophysical and electrochemical properties of these complexes are tunable, depending on their organic diimine framework. Introduction of a distal urea bridge via the 3,3’‐substitution pattern led to prolonged phosphorescence lifetimes without a significant change in absorbance and phosphorescence emission wavelengths. Reversible electrochemical bipyridine reduction remained largely unchanged by this derivatization.

Abstract

The preparations, photophysical and electrochemical properties of a series of fac‐[Re(CO)$_{3}$(diimine)Br] complexes are presented. The bipyridine (bpy) based diimine ligands feature symmetrical and asymmetrical 3,3’‐diamino‐2,2’‐bipyridine substitution patterns. Photophysical and electrochemical properties of these complexes are tunable, depending on their organic diimine framework. Introduction of a distal urea bridge via the 3,3’‐substitution pattern led to prolonged phosphorescence lifetimes without a significant change in absorbance and phosphorescence emission wavelengths. Reversible electrochemical bipyridine reduction remained largely unchanged by this derivatization.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
08 Research Priority Programs > Solar Light to Chemical Energy Conversion
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Physical Sciences > Catalysis
Life Sciences > Biochemistry
Life Sciences > Drug Discovery
Physical Sciences > Physical and Theoretical Chemistry
Physical Sciences > Organic Chemistry
Physical Sciences > Inorganic Chemistry
Uncontrolled Keywords:Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Drug Discovery, Biochemistry, Catalysis
Language:English
Date:1 February 2024
Deposited On:24 Apr 2024 10:37
Last Modified:19 Jul 2024 09:31
Publisher:Wiley Open Access
ISSN:1522-2675
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1002/hlca.202300239
Project Information:
  • : FunderUniversität Zürich
  • : Grant ID
  • : Project Title
  • Content: Published Version
  • Language: English
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)