| | 1 | Author
| Von Galvinoxyl-Mehrspinsystemen, W. Gierke, W. Harrer, B. Kirste, H. Kurreck, J. Reusch, Herrn Prof, G. Dr, Manecke | Requires cookie* | | | Title
| Über Galvinole und Galvinoxyle, II EPR-HFS-und elektronen-spektroskopische Untersuchung On Galvinols and Galvinoxyls, II EPR and Electronic Absorption Spectra of Oligo Galvinoxyl Radicals in Solution  | | | | Abstract
| The synthesis of several so far unknown mono-and oligo-galvinols and galvinoxyls is described. The ESR hyperfine splitting measurements in liquid solution indicate that the spin exchange frequency is greater than the hyperfine splitting in the galvinoxyl biradicals (J^>a). The electronic absorption spectra of the galvinols and galvinoxyls are discussed taking into account the different prototropic and redox equilibria, respectively. Using magnetic susceptibility measurements the singlet-triplet and doublet-quartet splitting is studied. | | | |
Reference
| (Z. Naturforsch. 31b, 965—973 [1976]; eingegangen am 5. März 1976) | | | |
Published
| 1976 | | | |
Keywords
| EPR, UV, Galvinols, Galvinoxyls | | | |
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| default:Reihe_B/31/ZNB-1976-31b-0965.pdf | | | | Identifier
| ZNB-1976-31b-0965 | | | | Volume
| 31 | |
| 2 | Author
| A. Scheffler, UndW. Preetz | Requires cookie* | | | Title
| Halogenokomplexe von Osmium(III) mit Pyridin, Pyrazin, Pyrimidin und einigen Methylhomologen Halogeno-Complexes of Osmium(III) with Pyridine, Pyrazine, Pyrimidine and Some Methyl-Homologes Mer-trihalogeno-tris(N-donor)osmium(III) Complexes | | | | Abstract
| The preparation of mer-[OsX3B3], X = C1, Br, I; B = pyridine, 3-resp. 4-picoline, pyrimidine, pyrazine, methylpyrazine, and the chromatographic isolation of four base-mixed stereoisomers mer-[OsX3(py)n(mepyz)3_ n ], n— 1, 2, as solid crystalline products is described. Mass spectra and ligand exchange reactions confirm the structure of these complexes. The UV and IR spectra are discussed. | | | |
Reference
| (Z. Naturforsch. 31b, 1099—1105 [1976]; eingegangen am 29. März/30. April 1976) | | | |
Published
| 1976 | | | |
Keywords
| Chromatographie Separation, UV, IR, Mutual Ligand Influences | | | |
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| default:Reihe_B/31/ZNB-1976-31b-1099.pdf | | | | Identifier
| ZNB-1976-31b-1099 | | | | Volume
| 31 | |
| 3 | Author
| G. Schätzel, W. Preetz | Requires cookie* | | | Title
| Tetrahalogeno -acetylacetonato -osmate (IV) Tetrahalogeno-acetylacetonato-osmates(IV) | | | | Abstract
| The complexes K[OsX4acac], X = Cl, Br, I, are prepared by treatment of K^fOsXß] with acetylacetone. The new compounds are characterized by their IR resp. visible and UV spectra which are highly resolved when measured on transparent pellets of the tetra-ethylammonium salts with KBr at 10 K. The influence of the different halide ligands on the bonding of the acac-group is discussed. | | | |
Reference
| (Z. Naturforsch. 31b, 749—753 [1976]; eingegangen am 11. März 1976) | | | |
Published
| 1976 | | | |
Keywords
| Halogeno-acetylacetonato-osmates(IV), Synthesis, UV, IR, Mutual Ligand Influences | | | |
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| default:Reihe_B/31/ZNB-1976-31b-0749.pdf | | | | Identifier
| ZNB-1976-31b-0749 | | | | Volume
| 31 | |
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