| | 1 | Author
| Dieter Sellmann, W. Olfgang, Soglowek, M. Atthias, Moll | Requires cookie* | | | Title
| Übergangsmetallkomplexe mit Schwefelliganden, XCI+ Fen-Komplexe des fünfzähnigen Thioether-Thiolat-Aminliganden 'buN HS4'-H2: Synthese, Charakterisierung, Reaktivität und Stereochemie ('buNHS4'-H2 = 2 ,2 -Bis(2-mercapto-3,5-di-tertiärbutyl-phenylthio)diethylamin)  | | | | Abstract
| Transition M etal Complexes with Sulfur Ligands, X C I+ Fe11 Complexes o f the Pentadentate Thioether-Thiolate-Amine Ligand 'buN HS4'-H 2: Synthesis, Characterization, Reactivity and Stereochemistry (,buN HS4'-H 2 = 2,2'-Bis(2-mercapto-3,5-di-tertiarybutyl-phenylthio)diethylamine) In search o f m odel com pounds for the active centers o f nitrogenases, [Fe(L)('buN HS4')] complexes o f the pentadentate thioether-thiolate-amine ligand 'buN HS4'2-('buN HS4'-H2 = 2,2'-bis(2-mercapto-3,5-di-tertiarybutyl-phenylthio)diethylamine) were obtained. A lkylation o f 'buS2'-H2 with (BrC2H4),N H yielded the new ligand 'buN HS4'-H2 as a mixture o f positional isomers. Isolation o f single isomers was achieved by reacting the mixture with FeCl2-4 H 20 and CO in order to give the corresponding [Fe(CO)] complexes which were se parated and hydrolyzed to yield the free ligands. R eaction o f 'buN HS4'-H2 with FeCl2 -4 H 20 led to the high-spin complex [Fe('buN HS4')] which is extremely air-sensitive in solution. It rapidly reacts with L = CO, NO, PM e3, and N 2H4, and is the m ost suitable starting material for syntheses o f [Fe(L)('buN HS4')l complexes which were characterized for L = CO, N O +, N O , PM e3 and N 2H4. All complexes are considerably better soluble in organic solvents than the corresponding parent compounds [Fe(L)('NHS4')], ('N hS4'-H 2 = 2,2'-bis(2-mercaptophenylthio)diethylamine), but have similar properties in most other respects. In the oxidation o f [F e(N 2H 4)('buN HS4')] at low temperatures, there is evidence for the form ation o f the diazene com plex [u-N 2H2{Fe('buN HS4')}2]. | | | |
Reference
| Z. Naturforsch. 47b, 1105 (1992); eingegangen am 10. April 1992 | | | |
Published
| 1992 | | | |
Keywords
| Iron Complexes, Thioether-Thiolate Ligand, Synthesis | | | |
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| ZNB-1992-47b-1105 | | | | Volume
| 47 | |
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