Synthesis of homo- and heteronuclear ruthenium-gold clusters with diphosphine and thiolato bridged ligands. Single crystal molecular structure of
Por:
Hernández-Cruz M.G., Sánchez-Cabrera G., Hernández-Sandoval M., Leyva M.A., Rosales-Hoz M.J., Ordoñez-Flores B.A., Salazar V., Lara A.G., Zuno-Cruz F.J.
Publicada:
1 ene 2011
Resumen:
The reaction between [Ru3(CO)10(NCMe)2] and [AuClPPh3] gave compound [Ru3(CO)10(µ- Cl)(µ-AuPPh3)] (1) in quantitative yield under very mild conditions. The reaction of 1 with 4-mercaptopyridine (4-pyS) using ultrasonic reaction conditions gave the heteronuclear compound [Ru3(CO) 10(µ-AuPPh3)(µ-SC5H4N)] (2) in moderate yield. There was no spectroscopic evidence that indicates the formation of the hydride isolobal analog in this reaction. The homonuclear cluster [Ru3(CO)8(µ-H)(µ-SC5H 4N)(µ-dppe)] (3) was prepared by a selective reaction employing the ruthenium-diphosphine derivative [Ru3(CO)10(µ-dppe) ] (dppe = 1,2-bis(diphenylphosphine)ethane) with 4-pyS in THF solution. The isolobal analog to compound 3, compound [Ru3(CO)8(µ- AuPPh3)(µ-SC5H4N)(µ-dppe)] (4) was synthesized by the reaction between compound 2 and dppe in refluxing dichloromethane. Compounds 1-4 were characterized in solution by spectroscopic methods and the molecular structure of compounds 2 and 3 in the solid state was obtained by single crystal X-ray diffraction studies. © 2010 Elsevier B.V. All rights reserved.
Filiaciones:
Centro de Investigaciones Químicas, Universidad Autónoma Del Estado de Hidalgo, Ciudad Universitaria, Km 4.5 Carretera Pachuca-Tulancingo, Pachuca Hgo., 42184 México, Mexico
Departamento de Química, Centro de Investigación y Estudios Avanzados Del I. P. N., Apdo. postal 14-740, 07000 México D. F., Mexico
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