TY - BOOK A1 - Zundel, Stefan A1 - Blättel-Mink, Birgit A1 - Brohmann, Bettina A1 - Defila, Rico A1 - Di Giulio, Antonietta A1 - Fischer, Daniel A1 - Fuchs, Doris A1 - Gölz, Sebastian A1 - Götz, Konrad A1 - Homburg, Andreas A1 - Kaufmann-Hayoz, Ruth A1 - Matthies, Ellen A1 - Michelsen, Gerd A1 - Schäfer, Martina A1 - Tews, Kerstin A1 - Wassermann, Sandra T1 - Konsum-Botschaften : was Forschende für die gesellschaftliche Gestaltung nachhaltigen Konsums empfehlen Y1 - 2013 SN - 978-3-7776-2371-9 PB - Hirzel Verlag CY - Stuttgart ET - 1. Auflage ER - TY - CHAP A1 - Wälder, Konrad A1 - Schäfer, Bertram T1 - Custom designs based on general I-optimality T2 - ENBIS 9, September 21 - 23, 2009, Göteborg, SwedenGöteborg, 2009, Book of abstracts N2 - This talk presents an overview about different optimization criteria for the construction of experimental designs. All of these criteria refer to the information matrix, which depends on the sampling points. For example, D-optimal designs minimize the volume of the confidence ellipsoid of the estimated coefficients whereas I-optimal designs minimize the average variance of the estimated response. However, there may be regions of the response surface which are more interesting from some practical point of view than others. In this case it is convenient to introduce a user defined weighting function for the standard deviation of the response. Therefore, a more general I-optimal optimization criterion will be discussed which utilizes such weighting functions. In the framework of “custom designs” the determination of suitable weighting schemes for the design creation is going to be an important subject for future research. Designs fulfilling different optimization criteria are compared on the basis of examples. KW - Design of Experiments Y1 - 2009 UR - http://www.enbis.org/activities/events/current/81_ENBIS9_Goteborg/programmeitem/491_Custom_designs_based_on_general_I_optimality PB - European Network for Business and Industrial Statistics ER - TY - GEN A1 - Benndorf, Christopher A1 - Hohmann, Andrea A1 - Schmidt, Peer A1 - Eckert, Hellmut A1 - Johrendt, Dirk A1 - Schäfer, Konrad A1 - Pöttgen, Rainer T1 - 2D 31P Solid state NMR spectroscopy, electronic structure and thermochemistry of PbP7 T2 - Journal of Solid State Chemistry N2 - Phase pure polycrystalline PbP7 was prepared from the elements via a lead flux. Crystalline pieces with edge-lengths up to 1 mm were obtained. The assignment of the previously published 31P solid state NMR spectrum to the seven distinct crystallographic sites was accomplished by radio-frequency driven dipolar recoupling (RFDR) experiments. As commonly found in other solid polyphosphides there is no obvious correlation between the 31P chemical shift and structural parameters. PbP7 decomposes incongruently under release of phosphorus forming liquid lead as remainder. The thermal decomposition starts at T>550 K with a vapor pressure almost similar to that of red phosphorus. Electronic structure calculations reveal PbP7 as a semiconductor according to the Zintl description and clearly shows the stereo-active Pb-6s2 lone pairs in the electron localization function ELF. KW - Polyphosphide KW - Solid state NMR spectroscopy KW - Thermochemistry Y1 - 2016 UR - http://www.sciencedirect.com/science/article/pii/S0022459615302942 U6 - https://doi.org/10.1016/j.jssc.2015.12.028 VL - 235 SP - 139 EP - 144 ER - TY - GEN A1 - Pfister, Daniela A1 - Schäfer, Konrad A1 - Ott, Claudia A1 - Gerke, Birgit A1 - Pöttgen, Rainer A1 - Janka, Oliver A1 - Baumgartner, Maximilian A1 - Efimova, Anastasia A1 - Hohmann, Andrea A1 - Schmidt, Peer A1 - Venkatachalam, Sabarinathan A1 - Wüllen, Leo van A1 - Schürmann, Ulrich A1 - Kienle, Lorenz A1 - Duppel, Viola A1 - Parzinger, Eric A1 - Miller, Bastian A1 - Becker, Jonathan A1 - Holleitner, Alexander A1 - Weihrich, Richard A1 - Nilges, Tom T1 - Inorganic double helices in semiconducting SnIP T2 - Advanced Materials N2 - SnIP is the first atomic-scale double helical semiconductor featuring a 1.86 eV bandgap, high structural and mechanical flexibility, and reasonable thermal stability up to 600 K. It is accessible on a gram scale and consists of a racemic mixture of right- and left-handed double helices composed by [SnI] and [P] helices. SnIP nanorods <20 nm in diameter can be accessed mechanically and chemically within minutes. KW - Helical semiconductor Y1 - 2016 UR - http://onlinelibrary.wiley.com/doi/10.1002/adma.201603135/full U6 - https://doi.org/10.1002/adma.201603135 SN - 1521-4095 VL - 28 IS - 44 SP - 9783 EP - 9791 ER -