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Metal-directed synthesis and photophysical studies of trinuclear V-shaped and pentanuclear X-shaped ruthenium and osmium metallorods and metallostars based upon 4`-(3,5-dihydroxyphenyl)-2,2`: 6`,2``-terpyridine divergent units

Constable, Edwin C. and Handel, R. W. and Housecroft, Catherine E. and Morales, A. F. and Ventura, B. and Flamigni, L. and Barigelletti, F.. (2005) Metal-directed synthesis and photophysical studies of trinuclear V-shaped and pentanuclear X-shaped ruthenium and osmium metallorods and metallostars based upon 4`-(3,5-dihydroxyphenyl)-2,2`: 6`,2``-terpyridine divergent units. Chemistry - A European Journal, 11 (13). pp. 4024-4034.

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Official URL: http://edoc.unibas.ch/39190/

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Abstract

A new series of V-shaped trinuclear metallorods and X-shaped pentanuclear metallostars has been prepared by the reaction of metal complexes bearing pendant phenolic functionalities with complexes containing electrophilic ligands. Specifically, M(tpy)(2) motifs (M=Ru or Os; tpy= 2,2`:6,2``-terpyridine) bearing one or two pendant 3,5-dihydroxyphenyl substituents at the 4-position of the central ring of the tpy have been reacted with the complexes [Ru(tpy)(Xtpy)](2+) (X= Cl or Br) to form new ether-linked species. The energy transfer from ruthenium to osmium in these complexes has been investigated in detail and the efficiency of transfer shown to be highly temperature dependent; the energy transfer is highly efficient at low temperature, whereas at room temperature nonradiative and nontransfer deactivation of the excited RU(tPY)2* domains is most significant.
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
Item Type:Article, refereed
Publisher:Wiley
ISSN:0947-6539
e-ISSN:1521-3765
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:12 Apr 2017 08:36
Deposited On:03 Feb 2016 08:59

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