caa a22 4500 477085687 CHVBK 20180405111503.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF01166058 doi (NATIONALLICENCE)springer-10.1007/BF01166058 Synthesis, structure, and characterization of Cu4S10(4-methylpyridine)4 [Elektronische Daten] [Aloysius Hepp, Robert Richman, Stan Duraj, Maria Andras, Hall Moore, Michal Sabat, William Eckles, Robert Martuch] The title compound, Cu4S10(4-methylpyridine)4 · 4-methylpyridine was prepared by three different reactions: the oxidation of copper power by sulfur and the reaction of copper (I) sulfide (or CuBr-SMe2) with cues sulfur, both in the coordinating solvent, 4-methylpyridine. Red crystals of the compound obtained by layering with hexans were subjected to single crystal X-ray diffraction. The structure was refined toR=0.026 and R w =0.036 in a space groupP1bar (No. 2), withZ=2,a=13.983 (2) A,b=15.384( 2) Å,c=9.660 (1) Å, α = 93.87 (1)°,β=93.38 =γ=(1)°,V=2037.9 (9) Å3. The commpound has approximate S4 symmetry and consists of two pentasuffide chains linking four Cu(I) ions, each with a coordinating 2-methylpyridine. The infrared spectrum was dominated by absorption due to coodinated 4-methylpyridine with several low-energy peaks attributable to S-S stretches, which were also observed by Raman spectroscopy. A featureless electronic absorption spectrum yielded a single peak in the mar ultraviolet upon computer enhancement (λ=334 nm, ε = 10,000), most likely an intraligand transition. Cyclic voltammetry indicates that the polysulfide complex undergoes irreversible oxidation and reduction at +0.04 and −0.34 V vs. SCR respectively, at NS K in 4-methylpyridine when swept at 20 mV/sec. The electrochemical behavior was unvaried even at sweep rates as high as 100 V/sec. Plenum Publishing Corporation, 1996 Copper polysulfide nationallicence X-ray crystal structure nationallicence infrared spectroscopy nationallicence UV/visible spectroscopy nationallicence Hepp Aloysius National Aeronautics and Space Administration, Lewis Research Center, 44135, Cleveland, Ohio aut Richman Robert Mount St. Mary's College, Science Department, 21727, Emmitsburg, Maryland aut Duraj Stan Cleveland State University, Department of Chemistry, 44115, Cleveland, Ohio aut Andras Maria National Aeronautics and Space Administration, Lewis Research Center, 44135, Cleveland, Ohio aut Moore Hall Mount St. Mary's College, Science Department, 21727, Emmitsburg, Maryland aut Sabat Michal University of Virginia, Department of Chemistry, 22901, Charlottesville, Virginia aut Eckles William Cleveland State University, Department of Chemistry, 44115, Cleveland, Ohio aut Martuch Robert Cleveland State University, Department of Chemistry, 44115, Cleveland, Ohio aut Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 7/2(1996-06-01), 199-210 1040-7278 7:2<199 1996 7 10876 https://doi.org/10.1007/BF01166058 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01166058 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hepp Aloysius National Aeronautics and Space Administration, Lewis Research Center, 44135, Cleveland, Ohio aut NATIONALLICENCE 700 1- Richman Robert Mount St. Mary's College, Science Department, 21727, Emmitsburg, Maryland aut NATIONALLICENCE 700 1- Duraj Stan Cleveland State University, Department of Chemistry, 44115, Cleveland, Ohio aut NATIONALLICENCE 700 1- Andras Maria National Aeronautics and Space Administration, Lewis Research Center, 44135, Cleveland, Ohio aut NATIONALLICENCE 700 1- Moore Hall Mount St. Mary's College, Science Department, 21727, Emmitsburg, Maryland aut NATIONALLICENCE 700 1- Sabat Michal University of Virginia, Department of Chemistry, 22901, Charlottesville, Virginia aut NATIONALLICENCE 700 1- Eckles William Cleveland State University, Department of Chemistry, 44115, Cleveland, Ohio aut NATIONALLICENCE 700 1- Martuch Robert Cleveland State University, Department of Chemistry, 44115, Cleveland, Ohio aut NATIONALLICENCE 773 0- Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 7/2(1996-06-01), 199-210 1040-7278 7:2<199 1996 7 10876 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer