0000000000267451
AUTHOR
Christian Köhler
showing 6 related works from this author
Functionalized phosphonates as building units for multi-dimensional homo- and heterometallic 3d-4f inorganic-organic hybrid-materials.
2016
Using the multifunctional ligand H4L (2,2'-bipyridinyl-5,5'-diphosphonic acid), a new family of inorganic-organic hybrid-materials was prepared. The ligand shows a very high flexibility regarding the coordination mode, leading to a large structural diversity. The compounds 1a, 1b ([M(H2L)(H2O)4]·2.5H2O; M = Co(2+) (a), Ni(2+) (b)), 2 ([Gd2(H2H'L)2(H2H'2L)(H2O)6]Cl4·14H2O), 3a, 3b, 3c ([MCo(iii)(H2L)3(H2O)2]·6.5H2O; M = Gd(3+) (a), Dy(3+) (b) and Tb(3+) (c)), and 4 ([GdNi(ii)(H2L)3(H2O)3]NaCl·6H2O) were isolated and characterized with single crystal X-ray diffraction. Depending on the used metal ions and on the stoichiometry, either discrete entities (0D), extended 2D layers or 3D frameworks…
The First 1,3,4‐Oxadiazole Based Dinuclear Iron(II) Complexes Showing Spin Crossover Behavior with Hysteresis
2015
Three new dinuclear complexes [FeII2(μ-L)2]X4 (L is the bis-tridentate ligand 2,5-bis{[(2-pyridylmethyl)amino]methyl}-1,3,4-oxadiazole and X = ClO4–, BF4– and CF3SO3–) have been synthesized and fully characterized by single-crystal X-ray diffraction, Mossbauer spectroscopy and magnetic susceptibility measurements. Upon cooling, a trapped [high-spin–low-spin] state of the iron(II) centres is detected. Depending on the counterion, a pronounced thermal hysteresis is found. In one case, it was possible to observe a space group change that accompanies the spin transition. This is the first system showing spin crossover based on an oxadiazole ligand.
CCDC 1434704: Experimental Crystal Structure Determination
2016
Related Article: Christian Köhler and Eva Rentschler|2016|Eur.J.Inorg.Chem.||1955|doi:10.1002/ejic.201501278
CCDC 1434702: Experimental Crystal Structure Determination
2016
Related Article: Christian Köhler and Eva Rentschler|2016|Eur.J.Inorg.Chem.||1955|doi:10.1002/ejic.201501278
CCDC 1434703: Experimental Crystal Structure Determination
2016
Related Article: Christian Köhler and Eva Rentschler|2016|Eur.J.Inorg.Chem.||1955|doi:10.1002/ejic.201501278
CCDC 1434701: Experimental Crystal Structure Determination
2016
Related Article: Christian Köhler and Eva Rentschler|2016|Eur.J.Inorg.Chem.||1955|doi:10.1002/ejic.201501278