期刊
INORGANICA CHIMICA ACTA
卷 392, 期 -, 页码 103-107出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2012.05.032
关键词
Chalcogenide materials; Metal-chalcogenide clusters; Tellurium clusters
资金
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
- FINEP (Finaciadora de Estudos e Projetos)
- FUNDECT (Fundacao de Apoio ao Desenvolvimento do Ensino, Ciencia e Tecnologia do Estado do Mato Grosso do Sul)
- CAPES
- National Institute of Photonics/CNPq
- UFGD
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.
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