3379-62-2Relevant academic research and scientific papers
Stabilizing gold adatoms by thiophenyl derivatives: A possible route toward metal redispersion
Yang, Bing,Pan, Yi,Lin, Xiao,Nilius, Niklas,Freund, Hans-Joachim,Hulot, Catherine,Giraud, Anne,Blechert, Siegfried,Tosoni, Sergio,Sauer, Joachim
, p. 11161 - 11167 (2012)
Tris(phenylthio)benzene molecules have been synthesized in order to explore their ability to trap single Au adatoms on an Au(111) surface. The resulting metal-organic complexes have been characterized with low-temperature scanning tunneling microscopy and infrared reflection absorption spectroscopy; possible structure models have been derived from density functional calculations. Upon room temperature deposition, the thiophenyl derivatives form dimer structures, comprising two molecules and six Au adatoms. Below 100 K, isolated molecules are found as well that have trapped up to six Au atoms. On the basis of the experimental results and calculated formation energies of the complexes, we discuss potential applications of the thioethers for the redispersion of metals on a catalyst surface. First experiments performed on Au particle ensembles prepared on alumina thin films suggest that the molecular ligands are indeed able to change the distribution of gold on the oxide surface.
A semiconducting supramolecular Co(ii)-metallohydrogel: an efficient catalyst for single-pot aryl-S bond formation at room temperature
Dhibar, Subhendu,Dey, Amiya,Jana, Rajkumar,Chatterjee, Arpita,Das, Gourab Kanti,Ray, Partha Pratim,Dey, Biswajit
supporting information, p. 17388 - 17394 (2019/12/02)
A novel mechanically stable supramolecular Co(ii)-metallohydrogel has been synthesized. Cobalt(ii) nitrate hexahydrate and monoethanolamine, as a low molecular weight organic gelator, are used to get the gel. The mechanical stability of the supramolecular hydrogel was analyzed. The morphology of the supramolecular metallohydrogel was scrutinized. The semiconducting features of the metallohydrogel were studied. The conducting properties of the Co(ii)-metallohydrogel establish a Schottky barrier diode type nature. The catalytic nature of the Co(ii)-metallohydrogel based room temperature single pot aryl-S coupling reaction was explored. Most interestingly, the Co(ii)-metallohydrogel based catalytic aryl-S coupling reaction does not require any column-chromatographic purification protocol to get pure aryl-thioethers. Thus, through this work a semiconducting Schottky barrier diode application and catalytic role in the room temperature single pot aryl-S coupling reaction of a supramolecular Co(ii)-metallohydrogel have been explored.
Synthesis of Di-, Tri-, and tetrasulfides through multifold carbon-sulfur cross-coupling reactions with indium tri(organothiolates) in a one-pot procedure
Lee, Phil Ho,Park, Youngchul,Park, Sangkyun,Lee, Euijae,Kim, Sunggak
scheme or table, p. 760 - 765 (2011/04/15)
Pd-catalyzed multifold (2-, 3-, and 4-fold) carbon-sulfur cross-coupling reaction of indium tri(organothiolates) with polybromonated aromatic and heteroaromatic compounds was developed in a one-pot procedure. Both 2,5-dibromopyridine and 2,6-dibromopyridi
