TY - JOUR A1 - Walther, M. A1 - Matterna, M. A1 - Juran, S. A1 - Fähnemann, S. A1 - Stephan, H. A1 - Kraus, Werner A1 - Emmerling, Franziska T1 - Imidazole-containing bispidine ligands: synthesis, structure and Cu(II) complexation N2 - The preparation and characterization of tris-pyridyl bispidine (3,7-diazabicyclo[3.3.1]nonane) derivatives with benzimidazole and imidazole donor groups at the N-3 position of the bispidine Skeleton and their copper(II) complexes are reported. The impact of the hetaryl substituents on the configurational isomerism of piperidones and their corresponding bispidones has been studied by NMR spectroscopy, revealing the exclusive appearance in the enol form for the piperidones in solution and the trans-configuration regarding the two pyridyl substituents, as well as the sole formation of the unsymmetric exo-endo isomers for the corresponding bispidones. Thus, the bispidones are preorganized ligands for building pentacoordinated complexes, confirmed by the preparation and characterization of the corresponding Cu(II) complexes. Of the di-pyridyl piperidones with benzimidazole and imidazole substituents, and of the Cu(II) complex of the benzimidazole-containing bispidone, Crystals have become available for the analysis by X-ray diffraction, showing that the piperidones form the enol tautomers also in the solid state. KW - Piperidone KW - Bispidine KW - Copper(II) KW - Configuration isomerism PY - 2011 SN - 0932-0776 SN - 0340-5087 SN - 0044-3174 VL - 66b SP - 721 EP - 728 PB - Verl. d. Zeitschrift für Naturforschung CY - Tübingen AN - OPUS4-24091 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Juran, S. A1 - Schubert, R. A1 - Steinbach, J. A1 - Stephan, H. A1 - Kraus, Werner T1 - Synthese und Charakterisierung neuer sechszähniger 3,7-Diazabicyclo[3.3.1]nonan-Derivate und ihre Kupfer(II)-Komplexe T2 - 13. Arbeitstreffen der AG Radiochemie/Radiopharmazie CY - Seefeld, Austria DA - 2005-10-06 PY - 2005 AN - OPUS4-10874 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Juran, S. A1 - Stephan, H. A1 - Schubert, R. A1 - Geipel, G. A1 - Kraus, Werner A1 - Jakob, M. A1 - Kerscher, M. A1 - Comba, P. T1 - Synthese und Komplexbildungseigenschaften neuer sechszähniger Bispidinderivate mit Pyridin- und Imidazolgruppen T2 - GDCh-Jahrestagung CY - Düsseldorf, Germany DA - 2005-09-11 PY - 2005 AN - OPUS4-7472 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Juran, S. A1 - Walther, M. A1 - Stephan, H. A1 - Born, K. A1 - Comba, P. A1 - Kraus, Werner A1 - Emmerling, Franziska T1 - Bispidines as a new class of chelating agents for copper radionuclides T2 - 17. Internationale Symposium on Radiopharmaceutical Scienses CY - Aachen, Germany DA - 2007-04-30 PY - 2007 AN - OPUS4-14069 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Juran, S. A1 - Walther, M. A1 - Stephan, H. A1 - Bergmann, R. A1 - Steinbach, J. A1 - Kraus, Werner A1 - Emmerling, Franziska A1 - Comba, P. T1 - Hexadentate Bispidine derivatives as versatile bifunctional chelate agents for Copper(II) radioisotopes PY - 2009 DO - https://doi.org/10.1021/bc800461e SN - 1043-1802 SN - 1520-4812 VL - 20 IS - 2 SP - 347 EP - 359 CY - Washington, DC AN - OPUS4-19068 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -