Dealing with 1,3-bis(4-nitrophenyl)triazene as intermediary ligand in the synthesis of polymeric (μ-Se)Hg-clusters: One-pot synthetic procedures and X-ray structural characterization of [(PhSe)7Hg4BrPy]n

Casagrande, Gleison A.; Lang, Ernesto Schulz; Oliveira, Gelson Manzoni de; Hörner, Manfredo; Broch, Fernanda

doi:10.1016/j.ica.2006.09.002

Cited by 24 publications

(14 citation statements)

References 30 publications

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“…Since these methods in general can also be applied to the synthons of the general formula M(ER) n , for which the examples M = Mg, Bi, Ga, In, Sn, Sb, Zn, Cd, Hg, Au, Yb, Zr, Hf; E = S, Se, Te; R = aryl, alkyl, have been reported, 29 we can also predict that a systematic methodology for the synthesis of binary and ternary clusters should be possible. [30][31][32][33][34][35][36][37][38][39][40][41][42] The formation of the final product -small clusters (26, 27), one-dimensional chains (24, 25, 28), or large clustersdepends on the reactivity of the synthon used. The greater is the reactivity of the synthon, the larger the resulting cluster.…”

Section: Discussionmentioning

confidence: 99%

“…[30][31][32][33][34][35][36][37][38][39][40][41][42] We have explored these reactions with Hg(ER) 2 in coordinating solvents to prepare a series of Hg-Te, Hg-Se and Ag-Te-Hg clusters (see compounds 1-23 in Scheme 1). Recently, Cd(SePh) 2 has been also used in the formation of some cadmium organochalcogenolate complexes [Cd 4 (SePh) 7 XPPh 3 ] n (X = Cl, Br) 30 and [Cd 2 (SePh) 2 X 2 (PCy 3 ) 2 ] (X = Br, I; PCy 3 = tricyclohexylphosphine) 42 under solvothermal conditions (stainless steel sealed reactor at 130 °C).…”

Section: Synthesesmentioning

confidence: 99%

“…We have already reported some results about the influence of ligands, coordinating solvents and reaction stoichiometry in the size and stereochemistry of different cluster compounds. [30][31][32][33][34][35][36][37] Our studies have been extended to investigate new synthetic routes to produce either binary or ternary clusters, such as the reactions of Hg(TePh) 2 with M′-salts (M′ = Ag I , Co II , Ni II ), stabilized by phosphines (PPh 3 or P(CH 3 ) 2 Ph) and pyridine. [38][39][40] More recently we have found out that a critical step to develop new clusters under controlled conditions is the adequate understanding of the processes which lead to the stabilization and isolation of species like PhEMX (M = Cd, Hg; E = Se, Te; X = Cl, Br, I).…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of [Cd8Cl2Se(SePh)12(PCy3)2]·2.5CH3OH

Stieler¹,

Bublitz²,

Burrow³

et al. 2010

J. Braz. Chem. Soc.

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Neste artigo estamos apresentando a síntese do composto [Cd 8 Cl 2 (µ 4 -Se) (SePh) 12 (PCy 3 ) 2 ]·2.5CH 3 OH pela reação de Cd(SePh) 2 com CdCl 2 e triciclohexilfosfina em metanol em um reator de aço inoxidável sob condições solvotérmicas a 130 °C. Esse composto corresponde ao último resultado de uma série sistemática de reações e visando ao crescimento de clusters moleculares a partir de Cd(SePh) 2 como reagente de partida. A importância desta síntese não está baseada somente nas propriedades do produto preparado, mas também no seu possível uso, por exemplo, no desenvolvimento de novas metodologias via estratégias "bottom up" para a obtenção de clusters a partir de uma mesma classe de reagentes -M(ER) 2 (M = metal, E = calcogênio, R = alquil ou aril). O composto apresentado neste artigo foi caracterizado por difração de raios X em monocristal, análise elementar, análise termogravimétrica e espectroscopia no UV-Vis. Estes últimos resultados foram correlacionados com dados calculados por DFT, teoria do funcional de densidade.In this article we present the synthesis of the compound [Cd 8 Cl 2 Se(SePh) 12 (PCy 3 ) 2 ]·2.5CH 3 OH by the reaction of Cd(SePh) 2 with CdCl 2 and PCy 3 in methanol in a stainless steel sealed reactor under solvothermal conditions at 130 °C. This compound represents the latest result of our systematic work on the growth of molecular clusters from Cd(SePh) 2 as starting material. Their importance is based not only on the properties of the new compounds, but also by their possible use, for example, in the development of new methods via a ''bottom up" strategy to obtain different clusters from single components like M(ER) 2 (M = metal, E = chalcogen, R = alkyl or aryl). The title compound was characterized by single crystal X-ray diffractometry, elemental analysis, thermogravimetrical analysis and the UV-Vis spectroscopy. These results were correlated with data calculated by DFT, density functional theory. Keywords: cadmium(II) complexes, selenium, tellurium, clusters IntroductionOrganylchalcogen groups bound to metal atoms to generate nanoclusters have become increasingly important due to their potential as semiconductors, among other materials and biological applications. [1][2][3][4] The unique optical and electronic properties inherent to these "quantumconfined particles" (quantum-dots) have been attributed to modifications of the electronic structure -depending upon the particle size -which lead to very different structures than those found in molecular solids or bulk materials. [5][6][7] Our search for new metalchalcogen-containing building blocks is of great interest for many reasons, principally because the variable size of the blocks produces tunable optoeletronic properties of the bulk products, [8][9][10] This emerging field -super lattices of crystalline chalcogenideslinks two traditional, but distinct, areas of research: chalcogenide clusters and reticular materials. [11][12][13][14][15][16][17][18][19] Some authors have proposed alternative ways for the development of metal-...

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Section: Discussionmentioning

confidence: 99%

Section: Synthesesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of [Cd8Cl2Se(SePh)12(PCy3)2]·2.5CH3OH

Stieler¹,

Bublitz²,

Burrow³

et al. 2010

J. Braz. Chem. Soc.

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“…Monomeric compounds are formed in THF by decomposition with heating [40], while in DMSO or pyridine a series of clusters with mercury halide/phenyltelluride building blocks are produced [31,33,41]. The choice of adequate ligands or coordinating solvents is essential for stabilization of the mercury halide/[Hg(TePh) 2 3 were obtained in accordance to the Scheme 3 (see next section).…”

Section: Synthetic Considerationsmentioning

confidence: 99%

On the search of size- and shape-controlled metal chalcogenide cluster compounds

Lang

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Oliveira

2010

Journal of Organometallic Chemistry

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“…22,23 We have already reported results about the influence of ligands, coordinating solvents and reaction stoichiometry on the size and stereochemistry of different cluster compounds. [24][25][26][27][28][29][30] In a recent communication we described the reactions of Hg(TePh) 2 [31][32][33] These papers discuss new synthetic routes to achieve either binary as ternary cluster compounds.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and crystal structure of chalcogenide cluster compound

Tirloni

Burrow

Villetti

et al. 2010

J. Braz. Chem. Soc.

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2 ], (2), were prepared by reaction of Hg(SePh) 2 , HgX 2 (X = Cl, Br) and tricyclohexylphosphine, PCy 3 , in dimethylformamide. The reaction of Hg(TePh) 2 with HgBr 2 in tetrahydrofuran using triphenylphosphine or 2,2'-bipyridine as co-ligands gave the polymeric cluster [{Hg 5 Br 3 (TePh) 7 } n ] (3), whose dissolution in dimethylsulfoxide yielded the cluster [Hg 3 Br 3 (TePh) 3 ]•2dmso. The influence of different ligands, coordinating solvents and reaction stoichiometries on the formation of the title compounds is also discussed. All complexes were characterized by elemental analysis, thermogravimetric analysis and single crystal X-ray diffractometry.

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Dealing with 1,3-bis(4-nitrophenyl)triazene as intermediary ligand in the synthesis of polymeric (μ-Se)Hg-clusters: One-pot synthetic procedures and X-ray structural characterization of [(PhSe)7Hg4BrPy]n

Cited by 24 publications

References 30 publications

Synthesis and characterization of [Cd8Cl2Se(SePh)12(PCy3)2]·2.5CH3OH

Synthesis and characterization of [Cd8Cl2Se(SePh)12(PCy3)2]·2.5CH3OH

On the search of size- and shape-controlled metal chalcogenide cluster compounds

Synthesis and crystal structure of chalcogenide cluster compound

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