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Issue 39, 2016
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Octahedral molybdenum cluster complexes with aromatic sulfonate ligands

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Abstract

This article describes the synthesis, structures and systematic study of the spectroscopic and redox properties of a series of octahedral molybdenum metal cluster complexes with aromatic sulfonate ligands (nBu4N)2[{Mo6X8}(OTs)6] and (nBu4N)2[{Mo6X8}(PhSO3)6] (where X is Cl, Br or I; OTs is p-toluenesulfonate and PhSO3 is benzenesulfonate). All the complexes demonstrated photoluminescence in the red region and an ability to generate singlet oxygen. Notably, the highest quantum yields (>0.6) and narrowest emission bands were found for complexes with a {Mo6I8}4+ cluster core. Moreover, cyclic voltammetric studies revealed that (nBu4N)2[{Mo6X8}(OTs)6] and (nBu4N)2[{Mo6X8}(PhSO3)6] confer enhanced stability towards electrochemical oxidation relative to corresponding starting complexes (nBu4N)2[{Mo6X8}X6].

Graphical abstract: Octahedral molybdenum cluster complexes with aromatic sulfonate ligands

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Publication details

The article was received on 19 Jul 2016, accepted on 30 Aug 2016 and first published on 30 Aug 2016


Article type: Paper
DOI: 10.1039/C6DT02863B
Citation: Dalton Trans., 2016,45, 15427-15435
  • Open access: Creative Commons BY-NC license
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    Octahedral molybdenum cluster complexes with aromatic sulfonate ligands

    O. A. Efremova, Y. A. Vorotnikov, K. A. Brylev, N. A. Vorotnikova, I. N. Novozhilov, N. V. Kuratieva, M. V. Edeleva, D. M. Benoit, N. Kitamura, Y. V. Mironov, M. A. Shestopalov and A. J. Sutherland, Dalton Trans., 2016, 45, 15427
    DOI: 10.1039/C6DT02863B

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