TY - JOUR A1 - Segebade, Christian A1 - Lutz, G. J. A1 - Schmitt, B. F. T1 - Bestimmung von Pd, Ag, Pt und Au in Elektrolytkupfer durch Aktivierung mit hochenergetischen Photonen PY - 1979 SN - 0016-1152 VL - 296 SP - 263 EP - 265 PB - Springer CY - Berlin AN - OPUS4-9201 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Segebade, Christian A1 - Lutz, G. J. T1 - Aktivierungsanalytische Untersuchungen an Keramik (Terra Sigillata) PY - 1976 SN - 0342-4510 VL - 7 SP - 4,1 EP - 4,20 PB - Habelt CY - Bonn AN - OPUS4-8561 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Reimers, Peter A1 - Lutz, G. J. A1 - Segebade, Christian T1 - The Non-Destructive Determination of Gold, Silver and Copper by Photon Activation Analysis of Coins and Art Objects PY - 1977 SN - 0003-813X SN - 1475-4754 SN - 0365-6004 VL - 19 IS - 1 SP - 167 EP - 172 PB - Blackwell CY - Oxford AN - OPUS4-8783 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Segebade, C. A1 - Lutz, G. J. A1 - Weise, Hans-Peter A1 - Fusban, H.-U. T1 - Quantitative Evaluation of Interference Reactions in Photon Activation Analysis PY - 1981 SN - 0134-0719 SN - 0022-4081 VL - 67 IS - 1 SP - 205 EP - 214 PB - Elsevier Sequoia CY - Lausanne AN - OPUS4-33361 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Nöll, G. A1 - Daub, J. A1 - Lutz, M. A1 - Rurack, Knut T1 - Synthesis, spectroscopic properties, and electropolymerization of azulene dyads N2 - Four azulene dyads have been synthesized and studied by spectroscopic and electrochemical methods. A triarylamine, a boron-dipyrromethene (BDP or BODIPY), a porphyrin, and an isoalloxazine moiety have been linked to an extended π electron system at the 2-position of azulene, leading to the dyads 1–4, respectively. For the synthesis of 1–4, first 2-(4-ethynyl-phenyl)azulene (EPA) was prepared, which was further reacted with the halogenated chromophores by Pd-catalyzed cross-coupling reactions. The dyads 1–4 exhibit strong absorption bands in the visible range, which are dominated by the absorption spectra of the individual subchromophores. Fluorometric studies of 2–4 revealed that after excitation of the subchromophoric unit attached to the parent azulene moiety, quenching mainly through energy transfer to azulene is effective, whereas possible charge-transfer interactions play only a minor role. Potentiodynamic oxidation of the dyads 1–4 leads to the formation of polymer films, which are deposited at the electrode. The polymer film derived from 1 was further characterized by spectroelectrochemistry. During positive doping of poly-1, a strong absorption band appears at 13,200 cm–1, which is typical for triarylamine radical cations. This band is overlapping with a broad absorption band in the low-energy region that might be caused by charge-transfer interactions within the polymer. KW - Azulen KW - Elektropolymerisation KW - Energietransfer KW - Farbstoffe KW - Fluoreszenz PY - 2011 DO - https://doi.org/10.1021/jo200080v SN - 0022-3263 SN - 1520-6904 VL - 76 IS - 12 SP - 4859 EP - 4873 PB - American Chemical Society CY - Washington, DC AN - OPUS4-23987 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -