Molecular and Polymeric Metal(II) chalcogenolate clusters: synthesis and structural characterization
| Autor: | Vânia Denise Schwade, Bárbara Tirloni, Kelly S. Moreira, Roberta Cargnelutti, Giovanny Ferro Razera, Andressa Lunardi, Camila Nunes Cechin, Natália Vicensi Fagundes, Ernesto Schulz Lang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010405 organic chemistry
Band gap Organic Chemistry Solid-state chemistry.chemical_element 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Mercury (element) Characterization (materials science) Inorganic Chemistry Metal Crystallography chemistry visual_art visual_art.visual_art_medium Partial oxidation Spectroscopy Selenium |
| Zdroj: | Journal of Molecular Structure. 1232:130083 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2021.130083 |
| Popis: | This study investigated the synthesis and structural characterization of mercury(II) selenolate molecular clusters and mixed mercury(II) seleninate/selenolate polymeric clusters. The novel tetranuclear mercury(II) selenolate molecular clusters [Hg4Br4(SePh)4(phen)2] (1) and [Hg4I4(SePh)4(phen)2] (2) were prepared by reacting Hg(SePh)2 with mercury salts and 1,10-phenanthroline. The mixed mercury(II) seleninate/selenolate polymeric clusters [Hg2Br(O2SePh)(SePh)2]n (3) and [Hg2I(O2SePh)(SePh)2]n (4) were synthesized by reacting Hg(SePh)2 with 3-chloroperbenzoic acid and mercury salts. Compounds 3 and 4 represent new examples of extended one-dimensional chains of closed ME (M = mercury; E = Se) systems, which result from the partial oxidation of mercury phenylselenolate clusters. The compounds 1 − 4 have been characterized by spectroscopic and crystallographic methods. Optical band gap values for 1 − 4 were estimated by UV–vis spectroscopy in the solid state. |
| Databáze: | OpenAIRE |
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