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Issue 17, 2014
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Insight into the dynamic ligand exchange process involved in bipyridyl linked arene ruthenium metalla-rectangles

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Abstract

The dynamic ligand exchange behavior of cationic arene ruthenium metalla-rectangles of the type [(p-cymene)4Ru4(OO∩OO)2(N∩N)2]4+ (OO∩OO = oxalato, 2,5-dioxydo-1,4-benzoquinonato, 5,8-dioxydo-1,4-naphthoquinonato; N∩N = 4,4′-bipyridine-H8, 4,4′-bipyridine-D8) has been studied in solution. The robustness of the rectangular architecture has been evidenced by NMR and ESI mass spectrometry. Thermodynamic and kinetic aspects of the ligand exchange process have been explored using 1H/2D isotope labeling of the 4,4′-bipyridine connectors. This study shows that ligand exchange does not proceed spontaneously for these metalla-assemblies, even at high temperature, unless an external stimulus is applied.

Graphical abstract: Insight into the dynamic ligand exchange process involved in bipyridyl linked arene ruthenium metalla-rectangles

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Publication details

The article was received on 20 Nov 2013, accepted on 17 Jan 2014 and first published on 20 Jan 2014


Article type: Paper
DOI: 10.1039/C3RA46859C
RSC Adv., 2014,4, 8597-8604

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    Insight into the dynamic ligand exchange process involved in bipyridyl linked arene ruthenium metalla-rectangles

    A. Garci, S. Marti, S. Schürch and B. Therrien, RSC Adv., 2014, 4, 8597
    DOI: 10.1039/C3RA46859C

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