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[Ag₁₁₅S₃₄(SCH₂C₆H₄$^t$Bu)₄7(dpph)₆]: synthesis, crystal structure and NMR investigations of a soluble silver chalcogenide nanocluster

Bestgen, Sebastian 1; Fuhr, Olaf ORCID iD icon 2,3; Breitung, Ben ORCID iD icon 2,3; Chakravadhanula, V. S. K. 2,3,4; Guthausen, Gisela 5,6; Hennrich, Frank 2,3; Yu, Wen; Kappes, Manfred M. 2,3,7; Roesky, Peter W. 1; Fenske, Dieter 1,2,3
1 Institut für Anorganische Chemie (AOC), Karlsruher Institut für Technologie (KIT)
2 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
3 Karlsruhe Nano Micro Facility (KNMF), Karlsruher Institut für Technologie (KIT)
4 Center for Electrochemical Energy Storage Ulm & Karlsruhe (CELEST), Karlsruher Institut für Technologie (KIT)
5 Institut für Technische Chemie und Polymerchemie (ITCP), Karlsruher Institut für Technologie (KIT)
6 Institut für Mechanische Verfahrenstechnik und Mechanik (MVM), Karlsruher Institut für Technologie (KIT)
7 Institut für Physikalische Chemie (IPC), Karlsruher Institut für Technologie (KIT)


With the aim to synthesize soluble cluster molecules, the silver salt of (4-(tert-butyl)phenyl)methanethiol [AgSCH2C6H4tBu] was applied as a suitable precursor for the formation of a nanoscale silver sulfide cluster. In the presence of 1,6-(diphenylphosphino)hexane (dpph), the 115 nuclear silver cluster [Ag115S34(SCH2C6H4tBu)47(dpph)6] was obtained. The molecular structure of this compound was elucidated by single crystal X-ray analysis and fully characterized by spectroscopic techniques. In contrast to most of the previously published cluster compounds with more than a hundred heavy atoms, this nanoscale inorganic molecule is soluble in organic solvents, which allowed a comprehensive investigation in solution by UV-Vis spectroscopy and one- and two-dimensional NMR spectroscopy including 31P/109Ag-HSQC and DOSY experiments. These are the first heteronuclear NMR investigations on coinage metal chalcogenides. They give some first insight into the behavior of nanoscale silver sulfide clusters in solution. Additionally, molecular weight determinations were performed by 2D analytical ultracentrifugation and HR-TEM investigations confirm the presence of size-homogeneous nanoparticles present in solution.

DOI: 10.1039/c6sc04578b
Zitationen: 49
Zitationen: 55
Zugehörige Institution(en) am KIT Helmholtz-Institut Ulm (HIU)
Institut für Mechanische Verfahrenstechnik und Mechanik (MVM)
Institut für Nanotechnologie (INT)
Institut für Physikalische Chemie (IPC)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 2041-6520, 2041-6539
KITopen-ID: 1000067564
HGF-Programm 43.21.04 (POF III, LK 01) Molecular Engineering
Erschienen in Chemical science
Verlag Royal Society of Chemistry (RSC)
Band 8
Heft 3
Seiten 2235-2240
Nachgewiesen in Dimensions
Web of Science
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