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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)

Title data

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. Vol. 37 (14 September 2018) Issue 19 . - pp. 3332-3341.
ISSN 1520-6041
DOI: https://doi.org/10.1021/acs.organomet.8b00559

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry IV
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry IV > Chair Inorganic Chemistry IV - Univ.-Prof. Dr. Birgit Weber
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 06 Jul 2020 07:40
Last Modified: 06 Jul 2020 07:40
URI: https://eref.uni-bayreuth.de/id/eprint/55692