Issue 11, 2008
From the journal:

Dalton Transactions

Syntheses, characterization and redox properties of oxo-centred triruthenium cluster dimers and trimers linked by ortho-metallated polypyridyl ligands†‡

Feng-Rong Dai,a   Jing-Lin Chen,a   Heng-Yun Ye,a   Li-Yi Zhanga  and  Zhong-Ning Chen*ab  

* Corresponding authors

a State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China
E-mail: czn@fjirsm.ac.cn
Fax: +86-591-8379-2346

b State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, China

Abstract

A series of mono-, di- and trimeric oxo-centred triruthenium cluster compounds with ortho-metallated polypyridyl ligands were prepared by reaction of oxo-centred triruthenium precursor compound [Ru3O(OAc)6(py)2(CH3OH)]+ (1) with bis(2,2′-bipyridin-5-yl)butadiyne (bpyC[triple bond, length as m-dash]C–C[triple bond, length as m-dash]Cbpy), bis(2,2′-bipridin-5-yl)ethyne (bpyC[triple bond, length as m-dash]Cbpy), 2,2′-bipyrazine (bpz), pyrazino[2,3-f]quinoxaline (pyq), or 4,7-phenanthroline (4,7-phen). As revealed by redox wave splitting, electronic interactions are operating between two Ru3O redox centres in most of the triruthenium cluster dimers and trimers. The cluster–cluster interactions are highly sensitive to the variations in bonding modes of the polypyridyl ligands. Ortho-metallation of the bridging ligand induces an enhanced electronic interaction between two triruthenium centres.

Graphical abstract: Syntheses, characterization and redox properties of oxo-centred triruthenium cluster dimers and trimers linked by ortho-metallated polypyridyl ligands

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Article information

DOI
https://doi.org/10.1039/B717315F
Article type
Paper
Submitted
09 Nov 2007
Accepted
07 Jan 2008
First published
12 Feb 2008

Dalton Trans., 2008, 1492-1502

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Syntheses, characterization and redox properties of oxo-centred triruthenium cluster dimers and trimers linked by ortho-metallated polypyridyl ligands

F. Dai, J. Chen, H. Ye, L. Zhang and Z. Chen, Dalton Trans., 2008, 1492 DOI: 10.1039/B717315F

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