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Redox Series of Cyclometalated Nickel Complexes [Ni((R)Ph(R′)bpy)Br]⁺/⁰/⁻/²⁻ (H–(R)Ph(R′)bpy = Substituted 6-Phenyl-2,2′-bipyridine)

Titelangaben

Sandleben, Aaron ; Vogt, Nicolas ; Hörner, Gerald ; Klein, Axel:
Redox Series of Cyclometalated Nickel Complexes [Ni((R)Ph(R′)bpy)Br]⁺/⁰/⁻/²⁻ (H–(R)Ph(R′)bpy = Substituted 6-Phenyl-2,2′-bipyridine).
In: Organometallics. Bd. 37 (2018) Heft 19 . - S. 3332-3341.
ISSN 1520-6041
DOI: https://doi.org/10.1021/acs.organomet.8b00559

Angaben zu Projekten

Projektfinanzierung: Deutsche Forschungsgemeinschaft

Abstract

New organonickel complexes [Ni((R)Ph(R′)bpy)Br] carrying various substituted derivatives of the tridentate –C∧N∧N ligand 6-(phenyl-2-ide)-2,2′-bipyridine (−Phbpy) were synthesized from the precursor [Ni(COD)2] (COD = 1,5-cyclooctadiene) and the protoligands (ligand precursors) Br–(R)Ph(R′)bpy. Several synthetic routes for the protoligands were studied and compared. All new compounds have been analyzed and spectroscopically characterized. From several complexes crystal and molecular structures were obtained from XRD experiments. UV–vis absorption spectroscopy and detailed electrochemical measurements reveal the impact of the various substituents on the electronic structure of the complexes. Quantum chemical DFT calculations illustrate the composition of highest occupied molecular orbitals (HOMO) and lowest unoccupied molecular orbitals (LUMO) and support the assignment of the single-electron reduction and oxidation products as bpy-localized ligand radical species and transient nickel(III) intermediates, respectively.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Professur Anorganische Chemie IV
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Professur Anorganische Chemie IV > Professur Anorganische Chemie IV - Univ.-Prof. Dr. Birgit Weber
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie
Titel an der UBT entstanden: Nein
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
Eingestellt am: 06 Jul 2020 07:40
Letzte Änderung: 25 Okt 2022 13:37
URI: https://eref.uni-bayreuth.de/id/eprint/55692