4,4″-Disubstituted Terpyridines and Their Homoleptic FeII Complexes

Harzmann, Gero D. and Neuburger, Markus and Mayor, Marcel. (2013) 4,4″-Disubstituted Terpyridines and Their Homoleptic FeII Complexes. European Journal of Inorganic Chemistry, 2013 (19). pp. 3334-3347.

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Official URL: http://edoc.unibas.ch/dok/A6223582

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A novel synthetic route to 4,4″-disubstituted-2,2′:6′,2″-terpyridine ligands by Suzuki–Miyaura cross-coupling was elaborated by synthesizing compounds 4a–5c. The considerable stability of 4-substituted lithium triisopropyl 2-pyridylborates 2a–c, which are less prone to protodeboronation than similarly functionalized neutral boronic acid derivatives, enabled this synthetic route. The terpyridine core structure was further functionalized by exposing 4,4″-dichloroterpyridine (4b) to Suzuki coupling conditions to yield 4,4″-diarylterpyridines 5a–c. Homoleptic FeII complexes 8a–f of the reported terpyridine ligands were formed quantitatively, which demonstrates the lack of steric repulsion of substituents at the 4- and 4″-positions during complexation. The solid-state structures of particular ligands and FeII complexes were analyzed by single-crystal X-ray crystallography. UV/Vis absorption data for the FeII complexes are also provided to complement the results reported here.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel and Harzmann, Gero and Neuburger, Markus
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:05 Apr 2017 10:07
Deposited On:27 Mar 2014 13:12

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