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  1. No Access

    Article

    Structure of a novel nitrido technetium complex with the peptide chelate ligand KYCAR

    A novel nitrido technetium complex was synthesized by the reaction of the KYCAR (lysyl-tyrosyl-cystyl-alanyl-arginine) ligand with [(n-C4H9)4N][99TcNCl4]. The structure of the complex was analyzed by 1H- and 13C-...

    S. Sato, T. Takayama, T. Sekine… in Journal of Radioanalytical and Nuclear Chemistry (2003)

  2. No Access

    Article

    Substituent effect on redox potential of nitrido technetium complexes with Schiff base ligand: Theoretical calculations

    Theoretical calculations based on the density functional theory (DFT) were performed to understand the effect of substituents on the molecular and electronic structures of technetium nitrido complexes with sal...

    T. Takayama, T. Sekine, H. Kudo in Journal of Radioanalytical and Nuclear Chemistry (2003)

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    Article

    Selective formation of thecis isomer of the nitridotechnetium(V) complex with 2,2′:6′,2″-terpyridine

    The reaction of [TcNCl2(PPh3)2] with 2,2′:6′,2″-terpyridine producedcis-[TcNCl2(terpy)] selectively. The resulting complexes were characterized by1H NMR and IR spectroscopy. The geometries of thecis andtrans isom...

    T. Takayama, S. Oshikiri, T. Sekine, H. Kudo in Journal of Radioanalytical and Nuclear Che… (1999)

  4. No Access

    Article

    Formation of nitridotechnetium (VI) μ-oxo dimer complexes with EDTA and EDDA

    Reactions of [99TcNCl4]− with ethylenediaminetetraacetic acid (EDTA) and ethylenediamine-N, N′-diacetic acid (EDDA) in a mixture of water and acetone gave TcVIN-EDTA and TcVIN-EDDA complexes. The infrared spectra...

    T. Takayama, Y. Kani, T. Sekine, H. Kudo… in Journal of Radioanalytical and Nuclear Che… (1995)

  5. No Access

    Article

    Synthesis and characterization of new nitridotechnetium-EDTA complex

    TcN-EDTA has been synthesized for the first time starting from TcNCl4 −. Elemental analysis shows that this compound has three molecules of water of crystallization: TcN(Hedta) · 3H2O. Its optical spectrum has an...

    T. Takayama, T. Sekine, K. Yoshihara in Journal of Radioanalytical and Nuclear Chemistry (1993)