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Approaches to wired terpyridine : Bithienyl alkynyl derivatives of 2,2′:6′,2″-terpyridine and their ruthenium(II) complexes

Constable, Edwin C. and Figgemeier, Egbert and Housecroft, Catherine E. and Medlycott, Elaine A. and Neuburger, Markus and Schaffner, Silvia and Reymann, Sebastien. (2008) Approaches to wired terpyridine : Bithienyl alkynyl derivatives of 2,2′:6′,2″-terpyridine and their ruthenium(II) complexes. Polyhedron, 27 (18). pp. 3601-3606.

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Official URL: http://edoc.unibas.ch/dok/A6055989

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Abstract

Two approaches to the formation of ruthenium(II) complexes containing ligands with conjugated 2,2`:6`,2``-terpyridine (tpy), alkynyl and bithienyl units have been investigated. Bromination of 4`-(2 2`,bithien-5`-yl)-2,2`:6`,2``-terpyridine leads to 4`-(5-bromo-2,2`-bithien-5`-yl)-2,2`:6`,2``-terpyridine (1), the single crystal structure of which has been determined. The complexes [Ru(1)(2)][PF6](2) and [Ru(tpy)(1)][PF6](2) have been prepared and characterized. Sonogashira coupling of the bromo-substituent with (TIPS)C CH did not prove to be an efficient method of preparing the corresponding complexes with pendant alkynyl units. The reaction of 4`-ethynyl-2,2`:6`,2``-terpyridine with 5-bromo-2,2`-bithiophene under Sonoashira conditions yielded ligand 2, and the heteroleptic ruthenium(II) complex [Ru(2)9 (tpy)][PF6](2) has been prepared and characterized.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Constable)
05 Faculty of Science > Departement Chemie > Chemie > Anorganische Chemie (Housecroft)
UniBasel Contributors:Constable, Edwin Charles and Figgemeier, Egbert and Housecroft, Catherine Elizabeth and Neuburger, Markus
Item Type:Article, refereed
Publisher:Elsevier
ISSN:0277-5387
e-ISSN:1873-3719
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:12 Apr 2017 06:45
Deposited On:01 Feb 2013 08:40

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