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Strukturelle Untersuchungen an Varianten des Ecballium elaterium Trypsin Inhibitors-II (EETI-II) / Structural characterization of variants of the Ecballium elaterium trypsin inhibitor EETI-IIKrätzner, Ralph 27 June 2001 (has links)
No description available.
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Electronic Structure and Magnetic Properties of a High-Spin MnIII Complex: [Mn(mesacac)3] (mesacac = 1,3-Bis(2,4,6-trimethylphenyl)-propane-1,3-dionato)Strassner, Nina M., Stipurin, Sergej, Koželj, Primož, Grin, Yuri, Strassner, Thomas 01 March 2024 (has links)
Metal acetylacetonates of the general formula [M(acac)3] (MIII=Cr, Mn, Fe, Co) are among the best investigated coordination compounds. Many of these first-row transition metal complexes are known to have unique electronic properties. Independently, photophysical research with different β-diketonate ligands pointed towards the possibility of a special effect of the 2,4,6-trimethylphenyl substituted acetylacetonate (mesacac) on the electron distribution between ligand and metal (MLCT). We therefore synthesized and fully characterized the previously unknown octahedral title complex. Its solid-state structure shows a Jahn-Teller elongation with two Mn−O bonds of 2.12/2.15 Å and four Mn−O bonds of 1.93 Å. Thermogravimetric data show a thermal stability up to 270 °C. High-resolution mass spectroscopy helped to identify the decomposition pathways. The electronic state and spin configuration of manganese were characterized with a focus on its magnetic properties by measurement of the magnetic susceptibility and triple-zeta density functional theory (DFT) calculations. The high-spin state of manganese was confirmed by the determination of an effective magnetic moment of 4.85 μB for the manganese center.
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