A hexanuclear copper arylselenolate: synthesis, structure and proposal for its rearrangement

Ohlmann, Dietmar; Pritzkow, Hans; Anthamatten, Mitchell; Glaser, Rainer

doi:10.1039/c39950001011

Cited by 23 publications

(14 citation statements)

References 18 publications

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“…[38Ϫ40] Even though most ligated copper chalcogenide clusters have been prepared as described herein, it should be mentioned that other synthetic routes to ligated or "naked" [Cu 2n E n ] cluster compounds have been studied. Besides syntheses in solvent environments [5Ϫ31] that led to the formation of, for example, [PhMe 3 As] 4 [Cu 8 {S 2 C 2 (CN) 2 } 6 ], [5] (Me 4 N) 2 [Cu 5 (SPh) 7 ], [6] (Ph 4 P) 4 [Cu 12 S 8 ], [7] or [Cu 6 {Se(2,4,6-iPr 3 C 6 H 2 )} 6 ], [8] ligand-free particles have been obtained and characterized by means of laser ablation techniques in combination with mass spectrometry. [32] …”

Section: General Synthetic Routesmentioning

confidence: 99%

“…Half of the total number of known copper sulfide clusters have the general formula [Cu 12 S 6 (PR 2 RЈ) 8 ], which represents the smallest known copper chalcogenide [Cu 2n E n ] cluster core (1Ϫ5). [13,15,18] The respective molecular structures correspond to one of two possible isomers that can both be derived from a highly symmetric polyhedron of metal and chalcogen atoms.…”

Section: Structures and Stabilitiesmentioning

confidence: 99%

“…[36] For model ligands PH 3 (MP2 and DFT; highest possible symmetry: D 4h for type I or S 4 for type II), both structures representing local minima on the energy hypersurface were found to be isoenergetic within the limits of the methods used. On calculating clusters [Cu 12 S 6 (PR 3 ) 8 ] with R ϭ Et or R ϭ Pr according to both structural isomers (DFT; highest possible symmetry: C 4h or S 4 ), i.e. one real (1, 4) and one hypothetical species each, one does not find a direct correlation between the substituents on the phosphorus atoms and the thermodynamic stabilization.…”

Section: Structures and Stabilitiesmentioning

confidence: 99%

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Chalcogen-Bridged Copper Clusters

Dehnen

Eichhöfer²,

Fenske

2002

Eur. J. Inorg. Chem.

174

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Keywords: Copper / Sulfur / Selenium / Tellurium / ClustersThe investigation of coinage metal molecular clusters bridged by chalcogen atoms represents an area of ever increasing activity in recent chemical and material science research. This is largely due to the relatively high ionic and even higher electric conductivity of binary coinage metal chalcogenides, which leads to properties intermediate between those of semiconducting and metallic phases. In addition, the size-dependency of the chemical, physical, and structural properties of substances on going from small molecules to bulk materials is of general interest. Approaches towards the synthesis and investigation of such clusters have included the study of colloidal nanoparticles with a narrow size distribution, as well as the formation and isolation of [a] ϩ49 (0)7247/82-6368 Andreas Eichhöfer (left) was born in Hünfeld, Germany, in 1964. He received his diploma in 1991, and subsequently graduated in 1993 in the group of Prof. D. Fenske at the university of Karlsruhe with a doctoral degree on metal-phosphorous cluster complexes. He then moved to the group of Prof. G. Fritz at the same institute to work on carbosilanes as precursor compounds for the fabrication of SiC fibers. After that he returned to his previous group and became a research scientist at the Institute of Nanotechnology at the Forschungszentrum Karlsruhe in 1999, where he is currently investigating the syntheses and properties of semiconductor cluster compounds. Stefanie Dehnen (center) was born in Gelnhausen, Germany, in 1969. She obtained her diploma from the University of Karlsruhe in 1993 and her doctoral degree in 1996 under the supervision of Prof. D. Fenske on experimental and theoretical investigations of copper sulfide and copper selenide clusters. After a postdoctoral stay with Prof. R. Ahlrichs (1997) she returned to the inorganic chemistry department at the University of Karlsruhe where she is presently preparing her Habilitation. In 1997, she was awarded a Feodor-Lynen-Stipendium of the Alexander-von-Humboldt-Stiftung, and in 1998, she received a Margarete-von-Wrangell-Habilitations-Stipendium of the state of Baden-Württemberg. Her current research interests comprise the synthesis, structural elucidation and chemical reactivity of binary or ternary polyanions of main group elements. Dieter Fenske (right) was born in Dortmund, Germany, in 1942. He studied chemistry at the University of Münster where he also received his doctoral degree in 1973 with Prof. H. J. Becher. After the completion MICROREVIEWS: This feature introduces the readers to the authors' research through a concise overview of the selected topic. Reference to important work from others in the field is included.

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Section: General Synthetic Routesmentioning

confidence: 99%

Section: Structures and Stabilitiesmentioning

confidence: 99%

Section: Structures and Stabilitiesmentioning

confidence: 99%

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Chalcogen-Bridged Copper Clusters

Dehnen

Eichhöfer²,

Fenske

2002

Eur. J. Inorg. Chem.

174

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“…The combinatorial synthesis and screening of large numbers of organic compounds is already an established tool for the development of new pharmaceuticals, [1] while the combinatorial approach to the development of new solid materials has just started. In 1995 the first combinatorial developments of new materials, like new magnetoresists [2] and new superconductors [3] were reported. In 1997 libraries produced efficiently by wetchemical syntheses with the help of ink-jet technology were created for the development of new luminescent materials.…”

Section: Detection Of Catalytic Activity In Combinatorial Libraries Omentioning

confidence: 99%

Synthesis and Structure of New Ag−Se Clusters: [Ag30Se8(SetBu)14(PnPr3)8], [Ag90Se38(SetBu)14(PEt3)22], [Ag114Se34(SenBu)46(PtBu3)14], [Ag112Se32(SenBu)48(PtBu3)12], and [Ag172Se40(SenBu)92(dppp)4]

Fenske

Zhu

Langetepe

1998

Angewandte Chemie International Edition

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A significant extension of the class of AgSe clusters is achieved with the synthesis of the title compounds. This confirms the concept that attaching organic ligands to the outer surface of the cluster hinders the formation of stable binary selenides. The protecting phosphane ligands have a great influence on the structure of the cluster formed. The structure of [Ag90Se38(SetBu)14(PEt3)22] is shown here (the tBu and Et groups are omitted for the sake of clarity).

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“…1995 wurden die ersten Arbeiten auf dem Gebiet der kombinatorischen Entwicklung neuer Materialien, z. B. neuer magnetoresistenter Materialien, [2] sowie neuer Supraleiter [3] veröffentlicht. 1997 wurde eine Methode zur naûchemischen Herstellung von Materialbibliotheken unter Anwendung von Tintenstrahltechnologie für die Entwicklung neuer lumineszierender Materialien [4] eingesetzt.…”

Section: Ir-thermographische Erkennung Katalytischer Aktivität In Komunclassified

Synthesen und Strukturen der neuen Ag-Se-Cluster [Ag30Se8(SetBu)14(PnPr3)8], [Ag90Se38(SetBu)14(PEt3)22], [Ag114Se34(SenBu)46(PtBu3)14], [Ag112Se32(SenBu)48(PtBu3)12] und [Ag172Se40(SenBu)92(dppp)4]

1998

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Beachtlich erweitert wurde die Gruppe der Ag‐Se‐Cluster durch die Synthesen der Titelverbindungen – eine Bestätigung für das Konzept, durch das Anbringen von organischen Liganden an der Clusteraußenseite die Zusammenlagerung zu stabilen binären Seleniden zu vermeiden. Das als Schutzligand verwendete Phosphan hat einen großen Einfluß auf die Struktur des entstehenden Clusters. Dargestellt ist die Struktur von [Ag90Se38(SetBu)14(PEt3)22] (die tBu‐ und Et‐Gruppen sind der Übersichtlichkeit halber nicht gezeigt).

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A hexanuclear copper arylselenolate: synthesis, structure and proposal for its rearrangement

Cited by 23 publications

References 18 publications

Chalcogen-Bridged Copper Clusters

Chalcogen-Bridged Copper Clusters

Synthesis and Structure of New Ag−Se Clusters: [Ag30Se8(SetBu)14(PnPr3)8], [Ag90Se38(SetBu)14(PEt3)22], [Ag114Se34(SenBu)46(PtBu3)14], [Ag112Se32(SenBu)48(PtBu3)12], and [Ag172Se40(SenBu)92(dppp)4]

Synthesen und Strukturen der neuen Ag-Se-Cluster [Ag30Se8(SetBu)14(PnPr3)8], [Ag90Se38(SetBu)14(PEt3)22], [Ag114Se34(SenBu)46(PtBu3)14], [Ag112Se32(SenBu)48(PtBu3)12] und [Ag172Se40(SenBu)92(dppp)4]

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