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Spectroscopic Investigation on the Formation of a Dinuclear Me2SO–Ru2-Mercaptopyridine Bridged Complex: [Ru2Cl3(μ-pyS)(μ-dmso)(dmso)4] · 2H2O

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Abstract

A dinuclear ruthenium(II) complex double-bridged by an N-aromatic ligand 2-mercaptopyridine (2-pyridinethiol or 2-pyridyl mercaptan) and a methyl sulfoxide (dmso) have been characterized by X-ray crystallography. The reported compound with formula [Ru2Cl3(μ-pyS)(μ-dmso)(dmso)4] · 2H2O, [C15H36Cl3NO7S6Ru2] (P2/c, a = 13.8175(2) Å, b = 10.5608(2) Å, c = 21.3544(3) Å, β = 106.090(1)°, V = 2,994.05(8) Å3, Z = 4) represents a seven-membered ring system with both rutheniums in an octahedral geometry. All the hydrogen bonds (C–H–Cl) and the van der Waals contacts give rise to three-dimensional network in the structure and add stability to the dinuclear compound. To our knowledge, this is the first time that the formation of a dinuclear ruthenium(II) complex double-bridged by an N-aromatic ligand 2-mercaptopyridine and dmso have been reported. The study also provided valuable insight into bioinorganic chemistry as continuing efforts are being made to develop metal-based cancer chemotherapeutics. A major feature of this paper is the resolution of a double bridged ruthenium structure which contributes to a better understanding of ruthenium reactivity.

Index Abstract

A major feature of this paper is the resolution of a double bridged ruthenium structure which contributes to a better understanding of ruthenium reactivity.

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Acknowledgments

The authors are grateful to the Brazilian financial agencies CNPq (Conselho Nacional de Pesquisa e Desenvolvimento), CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) and, FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo). They kindly acknowledge K. Harding for the suggestions.

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Authors and Affiliations

  1. Departamento de Química, Universidade Federal de São Carlos, C.P. 676, São Carlos, SP, 13565-905, Brazil

    Queite Antônia de Paula & Alzir A. Batista

  2. Instituto de Física de São Carlos, Universidade de São Paulo, C.P. 369, São Carlos, SP, 13560-905, Brazil

    Sauli dos Santos Jr., Javier Ellena & Eduardo E. Castellano

  3. Department of Chemistry, Virginia Commonwealth University, 1001 W Main Street, Richmond, VA, 23284-2006, USA

    Queite Antônia de Paula

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  1. Queite Antônia de Paula
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  2. Sauli dos Santos Jr.
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  3. Javier Ellena
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  4. Eduardo E. Castellano
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  5. Alzir A. Batista
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Correspondence to Queite Antônia de Paula.

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de Paula, Q.A., Santos, S.d., Ellena, J. et al. Spectroscopic Investigation on the Formation of a Dinuclear Me2SO–Ru2-Mercaptopyridine Bridged Complex: [Ru2Cl3(μ-pyS)(μ-dmso)(dmso)4] · 2H2O. J Chem Crystallogr 39, 519–524 (2009). https://doi.org/10.1007/s10870-009-9514-3

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  • DOI: https://doi.org/10.1007/s10870-009-9514-3

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