TY - JOUR A1 - Lippitz, Andreas A1 - Unger, Wolfgang A1 - Boese, O. A1 - Kemnitz, E. T1 - y-Al2O3 by Au 4f7/2-referenced XPS and XAES JF - Surface science spectra N2 - Powder x-ray diffraction (XRD) defined -Al2O3 has been investigated by x-ray photoelectron spectroscopy (XPS) and x-ray excited Auger electron spectroscopy (XAES). The Au 4f7/2 orbital is used for static charge referencing. This feature originates from well-defined and chemically inert 20 nm highly dispersed gold particles deposited on the sample surface. The particles, with a narrow particle size distribution, were obtained from a highly purified colloidal solution (sodium concentration below 1 mg/l). This procedure allows a determination of gold-referenced XPS and XAES data sets. ©2001 American Vacuum Society. KW - Au 4f referenced XPS data KW - Aluminium KW - Oxide PY - 2001 UR - http://scitation.aip.org/vsearch/servlet/VerityServlet?KEY=SSSPEN&ONLINE=YES&smode=strresults&sort=chron&maxdisp=25&threshold=0&possible1zone=article&possible4=lippitz&possible4zone=author&bool4=and&fromyear=2001&OUTLOG=NO&viewabs=SSSPEN&key=DISPLAY&docID DO - https://doi.org/10.1116/11.20020305 SN - 1055-5269 SN - 1520-8575 VL - 8 IS - 1-4 SP - 214 EP - 219 PB - AIP CY - Woodbury, NY AN - OPUS4-1910 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Witke, Klaus A1 - Kunze, Ralf A1 - Neubert, Dietmar A1 - Mehner, Hartmut A1 - Feist, M. A1 - Kemnitz, E. T1 - Two oxidation states and four different coordinations of iron in an unusual chloro complex: TG-MS, Raman and Mössbauer spectroscopic investigations of the thermal behaviour JF - Thermochimica Acta N2 - Conventional simultaneous thermal analysis, capillary-coupled TG–MS, in situ and ex situ Raman and Mössbauer spectroscopy, as well as chemical analysis have been used for the investigation of the first decomposition step of the mixed valence chloroferrate (dmpipzH2)6[Fe(II)Cl4]2[Fe(III)Cl4]2[Fe(II)Cl5][Fe(III)Cl6]. Under argon at ca. 200°C, an almost complete reduction proceeds in a solid state reaction forming Fe(II). It is accompanied by the release of HCl and, to a minor degree, carbon containing species. A multi-phase product with at least two chloroferrate species, coke, and C,H,N-containing polymers is formed. Binuclear iron complexes, such as (dmpipzH)2[Fe(II)2Cl6], and small amounts of (dmpipzH)[Fe(III)Cl4] have been proposed to be the major and minor component of the product mixture, respectively. KW - Mixed valence chloroferrate KW - Thermal decomposition KW - Intramolecular reduction PY - 2000 DO - https://doi.org/10.1016/S0040-6031(00)00546-3 SN - 0040-6031 SN - 1872-762X VL - 361 IS - 1-2 SP - 53 EP - 60 PB - Elsevier CY - Amsterdam AN - OPUS4-988 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mehner, Hartmut A1 - Witke, Klaus A1 - Feist, M. A1 - Troyanov, S.I. A1 - Kemnitz, E. T1 - Halogenometallate von Übergangselementen mit Kationen stickstoffhaltiger heterozyklischer Basen. VII Zwei Oxidationsstufen und vier verschiedene Koordinationen von Eisen in einer Verbindung. Synthese, Kristallstruktur und spektroskopische Charakterisierung von 1,4-Dimethylpiperazinium-Chloroferrat(II, III), (dmpipzH2)6[FeIICl4]2[FeIIICl4]2[FeIICl5] [FeIIICl6] JF - Zeitschrift für anorganische und allgemeine Chemie = Journal of inorganic and general chemistry KW - Halogenometallate KW - Spektroskopische Charakterisierung PY - 1999 SN - 0044-2313 SN - 1521-3749 SN - 0372-7874 SN - 0863-1786 SN - 0863-1778 N1 - Sprachen: Deutsch/Englisch - Languages: German/English VL - 625 IS - 1 SP - 141 EP - 146 PB - Wiley-VCH CY - Weinheim AN - OPUS4-738 LA - mul AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Feist, M. A1 - Troyanov, S.I. A1 - Mehner, Hartmut A1 - Witke, Klaus A1 - Kemnitz, E. T1 - Zwei Oxidationsstufen und vier verschiedene Koordinationen von Eisen in einer Verbindung. Synthese, Kristallstruktur und spektroskopische Charakterisierung von 1,4-Dimethylpiperazinium-Chloroferrat(II, III), (dmpipzH2)6[FeIICl4]2[FeIIICl4]2[FeIICl5] [FeIIICl6] JF - Zeitschrift für anorganische und allgemeine Chemie = Journal of inorganic and general chemistry KW - 1,4-Dimethylpiperazinium chloroferrate(II,III) KW - Crystal Structure KW - Trigonal-bipyramidal pentachloroferrate(II) KW - Mössbauer, Raman spectroscopy PY - 1999 SN - 0044-2313 SN - 1521-3749 SN - 0372-7874 SN - 0863-1786 SN - 0863-1778 IS - 625 SP - 141 EP - 146 PB - Wiley-VCH CY - Weinheim AN - OPUS4-2305 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Grohmann, I. A1 - Hess, A. A1 - Kemnitz, E. A1 - Frentrup, W. A1 - Unger, Wolfgang T1 - XANES-Investigations of coprecipitated AIF3/MgF2 phases T2 - BESSY Jahresbericht 1995 KW - XANES-Spektrum KW - Kalzienieren KW - Magnesium PY - 1996 SN - 0179-4159 SP - 222 EP - 223 PB - Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung CY - Berlin AN - OPUS4-682 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Grohmann, I. A1 - Kemnitz, E. A1 - Lippitz, Andreas A1 - Unger, Wolfgang T1 - Curve Fitting of Cr2p Photoelectron Spectra of Cr2O3 and CrF3 JF - Surface and interface analysis KW - Photoelektronenspektroskopie KW - Kurvenglättung KW - Chrom PY - 1995 SN - 0142-2421 SN - 1096-9918 VL - 23 SP - 887 EP - 891 PB - Wiley CY - Chichester AN - OPUS4-678 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -