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

Chemical Science
Sebastian BestgenDieter Fenske

Abstract

With the aim to synthesize soluble cluster molecules, the silver salt of (4-(tert-butyl)phenyl)methanethiol [AgSCH2C6H4(t) Bu] 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(SCH2C6H4(t) Bu)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 (31)P/(109)Ag-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.

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Citations

Sep 19, 2017·Chemistry : a European Journal·Niklas RinnStefanie Dehnen
Oct 27, 2017·Nanoscale·Xuejuan ZouManzhou Zhu
Oct 4, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Howard Z MaRichard A J O'Hair
May 29, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·C K ManjuThalappil Pradeep
Sep 6, 2019·Chemistry, an Asian Journal·Yu-Hui FengYan-Feng Bi
Oct 31, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Arvind Kumar Gupta, Andreas Orthaber
Feb 6, 2020·Chemical Communications : Chem Comm·Fan Tian, Rong Chen
Apr 18, 2020·Angewandte Chemie·Chenglong DengLansun Zheng
Aug 28, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Yang-Lin ShenXing Lu
Apr 19, 2019·Chemical Science·Helena BrakeManfred Scheer
Oct 20, 2020·Chemistry : a European Journal·Yang-Lin ShenXing Lu
Feb 4, 2021·Chemical Communications : Chem Comm·Qiao-Qiao SunShuang-Quan Zang
Aug 20, 2021·ACS Applied Materials & Interfaces·Qian Su, Xiaoming Yang

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Methods Mentioned

BETA
X-ray
transmission electron microscopy
NMR
1
electron diffraction

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