Issue 1, 2004
From the journal:

New Journal of Chemistry

4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes

Fritz E. Kühn,*a   Jing-Lin Zuo,a   Fabrizia Fabrizi de Biani,b   Ana M. Santos,ac   Yanmei Zhang,a   Jin Zhao,a   Angela Sandulachea  and  Eberhardt Herdtwecka  

* Corresponding authors

a Anorganisch-Chemisches Institut der Technischen Universität München, Lichtenbergstraße 4, Garching bei München, Germany
E-mail: fritz.kuehn@ch.tum.de
Tel: 0049-89-28913108

b Dipartimento di Chimica dell'Universita di Siena, Via Aldo Moro, Siena, Italy

c Instituto de Tecnologia Química e Biológica da Universidade Nova de Lisboa, Quinta do Marquês, EAN, Apt 127, Oeiras, Portugal

Abstract

Two ruthenium(II) 4-ethynylpyridine-hydride complexes bearing one Lewis-basic nitrogen atom as coordination site, namely trans-Ru(dppe)2H(C[triple bond, length as m-dash]Cpy-4) (1) and trans-Ru(dppm)2H(C[triple bond, length as m-dash]Cpy-4) (2) (dppe = 1,2-bis(diphenylphosphino) ethane, dppm = 1,2-bis(diphenylphosphino) methane) and Ru(dmpe)2(C[triple bond, length as m-dash]Cpy-4)2 (3) (dmpe = 1,2-bis(dimethylphosphino) ethane) with two nitrogen donor atoms were applied to synthesize the heterobimetallic mixed Ru/Re complexes 4–7. The X-ray crystal structure of the binuclear complex [Re(CO)3(t-bu2bipy)Ru(dppe)2(C[triple bond, length as m-dash]Cpy-4)H] [OS([double bond, length as m-dash]O)2CF3] (t-bu2bipy = 4, 4′-di (t-butyl)-2,2′-bipyridine, (7)) has been determined.

Besides the usual characterization (IR, NMR, UV/Vis, EA) of the compounds 1–7, thermogravimmetry (TG) and cyclovoltammetry (CV) of selected complexes were measured in order to study the interaction between the organometallic building blocks. The existence of long-range Ru⋯Re interactions has been observed.

Graphical abstract: 4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes

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Article information

DOI
https://doi.org/10.1039/B307919H
Article type
Paper
Submitted
10 Jul 2003
Accepted
20 Sep 2003
First published
29 Oct 2003

New J. Chem., 2004,28, 43-51

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4-Ethynylpyridine as bridging moiety in mixed Ru/Re complexes

F. E. Kühn, J. Zuo, F. Fabrizi de Biani, A. M. Santos, Y. Zhang, J. Zhao, A. Sandulache and E. Herdtweck, New J. Chem., 2004, 28, 43 DOI: 10.1039/B307919H

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