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Title: A facile preparation of two new isostructural metal-organochalcogen clusters from simple starting materials: Sonochemical synthesis, X-ray structures and spectroscopic remarks
Authors: Modesto, Maisy I. P. R.
Finoto, Simone
Casagrande, Gleison Antonio
Raminelli, Cristiano [UNIFESP]
Lang, Ernesto Schulz
Back, Davi F.
Oliveira, Samuel Leite
Martines, Marco Antonio U.
Fundacao Univ Fed Grande Dourados
Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de Sergipe (UFS)
Universidade Federal de Mato Grosso do Sul (UFMS)
Keywords: Chalcogenide materials
Metal-chalcogenide clusters
Tellurium clusters
Issue Date: 30-Sep-2012
Publisher: Elsevier B.V.
Citation: Inorganica Chimica Acta. Lausanne: Elsevier Science Sa, v. 392, p. 103-107, 2012.
Abstract: In this work, the formation and characterisation of two new isostructural metal-organochalcogen clusters from simple starting materials was investigated. A sonochemical synthesis was performed in a one-pot procedure without the isolation of synthetic intermediates. This methodology offers a new approach to prepare cluster compounds, and this experiment led to the formation of [(PhTe)(12)Hg-8(S)X-2 (Py)(2)]center dot Py (X = Br, I; Py = Pyridine) in good yield. the X-ray analyses reveal that the framework of the clusters contains a similar [Hg-8(mu(4)-S)Te-12] core as the central unit. the sulphur atom present in the core of both structures has a tetrahedral coordination geometry achieved by four S-Hg(II) bonds. the complete characterisation of the synthesised materials also includes elemental analyses, IR spectroscopy and UV-Vis absorption data. (C) 2012 Elsevier B. V. All rights reserved.
ISSN: 0020-1693
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