Frank T. Edelmann

Otto-von-Guericke University Magdeburg | OvGU · Institute of Physics (IfP)

For decades, the organometallic chemistry of the rare earth elements was largely dominated by the cyclopentadienyl ligand and its ring-substituted derivatives. A hot topic in current organolanthanide chemistry is the search for alternative ligand sets which are able to satisfy the coordination requirements of the large lanthanide cations. Among the...

This Tutorial Review presents an overview on the synthesis, characterization and applications of metal complexes containing curcumin (=1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione) and its derivatives as ligands. Innovative synthetic strategies leading to soluble and crystallizable metal curcumin complexes are outlined in detail. Spe...

Although little known to the general public, Thomas Midgley Jr., an American chemist and inventor, made two inventions which had fatal impacts on the Earth's atmosphere, namely tetraethyl lead as an additive to fuels and Freon 12 as a refrigerant.

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Lightweight design is an essential part of the overall Volkswagen strategy for reducing the CO2 emission. The use of carbon fiber reinforced polymers (CFRP) offers an enormous lightweight potential in comparison to aluminum, enabling a weight reduction, if a load-adapted (unidirectional) CFRP-design is used, of up to 60% in automobile parts without...

The syntheses of the new ligands 3‐(pyrazol‐1‐yl)methylpropanoate (L1) and 3‐(2,4‐dimethylpyrazol‐1‐yl)methylpropanoate (L2) and their complexation with palladium(II) have been instigated. In our hands L1 is best prepared by a Michael addition catalyzed by CaCO3 and L2 by a catalyst and solvent free reaction. Both L1 and L2 react with PdCl2(COD) to...

In this contribution, the first amidinate and amidine derivatives of p-carborane are described. Double lithiation of p-carborane (1) with n-butyllithium followed by treatment with 1,3-diorganocarbodiimides, R–N=C=N–R (R = iPr, Cy (= cyclohexyl)), in DME or THF afforded the new p-carboranylamidinate salts p-C2H10B10[C(NiPr)2Li(DME)]2 (2) and p-C2H10...

A series of new alkynylamidinate complexes of selected first and second row transition metals has been synthesized and fully characterized. Treatment of MCl2 precursors (M=Mn, Fe, Co) with 2 equiv. of the lithium alkynylamidinates Li[c‐C3H5−C≡C−C(NR′)2] ⋅ THF (R′=ⁱPr (2), Cy (cyclohexyl) (2)) afforded a series of binuclear complexes of the type M2[...

The current library of amidinate ligands has been extended by the synthesis of two novel dimethylamino‐substituted alkynylamidinate anions of the composition [Me 2 N–CH 2 –C≡C–C(NR) 2 ] – (R = i Pr, cyclohexyl (Cy)). The unsolvated lithium derivatives Li[Me 2 N–CH 2 –C≡C–C(NR) 2 ] ( 1 : R = i Pr, 2 : R = Cy) were obtained in good yields by treatmen...

A series of brightly colored alkaline earth metal 1,3-dimethylviolurates M(Me2Vio)2 have been prepared and fully characterized. The title compounds AE(Me2Vio)2·nH2O (AE = Mg, n = 6 (3); AE = Ca, n = 8 (4), AE = Sr, n = 6 (5); AE = Ba, n = 4 (6)) were obtained by neutralizing 1,3-dimethylvioluric acid monohydrate (=H(Me2Vio)·H2O; 2) with 0.5 equiv....

A series of new homoleptic first‐row transition metal and yttrium tris(alkynylamidinate) complexes have been synthesized and fully characterized. The starting materials [c‐C3H5–C≡C–C(NR)2]Li·THF (1: R = iPr, 2: R = Cy; Cy = cyclohexyl) were obtained in high yields by employing a modified literature procedure. In the course of this study, the unprec...