نتایج جستجو برای: coiii complexes
تعداد نتایج: 137228 فیلتر نتایج به سال:
Die ersten oktaedrisch koordinierten CoII-Komplexe mit redoxaktivem Bisguanidin-Liganden und acac-Coliganden wurden synthetisiert hinsichtlich ihrer Redoxchemie analysiert. N-H-Funktionen in einem partiell alkylierten Guanidino-Gruppen bilden N-H⋅⋅⋅O-Brücken zu den beeinflussen dadurch stark die Redoxchemie. Bei allen Komplexen ist erste 1 e−-Oxidation metallzentriert führt CoIII-Komplexen neut...
A cobalamin (Cbl) cofactor in corrinoid iron-sulfur protein (CoFeSP) is the primary methyl group donor and acceptor in biological carbon oxide conversion along the reductive acetyl-CoA pathway. Changes of the axial coordination of the cobalt ion within the corrin macrocycle upon redox transitions in aqua-, methyl-, and cyano-Cbl bound to CoFeSP or in solution were studied using X-ray absorption...
Context. There have been recent claims that a significant fraction of type 2 AGN accrete close or even above the Eddington limit. In type 2 AGN the bolometric luminosity (Lb) is generally inferred from the [OIII] emission line luminosity (LOIII). The key issue, in order to estimate the bolometric luminosity in these AGN, is therefore to know the bolometric correction to be applied to LOIII. A c...
in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...
Die Umsetzung des CoI-Komplexes [(TIMMNmes)CoI](PF6) (1) (TIMMNmes=tris-[2-(3-Mesityl-imidazolin-2-yliden)-methyl]amin) mit Mesitylazid ergibt das CoIII-Imid [(TIMMNmes)CoIII(NMes)](PF6) (2). Folgende Oxidation [FeCp2](PF6) ermöglicht den Zugang zu dem seltenen CoIII-Imidylkomplex [(TIMMNmes)Co(NMes)](PF6)2 (3). Einkristall-Röntgenstrukturanalyse und ESR-Spektroskopie bestätigen die molekulare ...
abstract the cr(iii) and zn(ii) complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl)benzoic acid as ligand have been prepared by reacting cr(no3) and zn(no3)2 and ligand in cloroform. the cr and zn complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl) were also prepared in chloroform and aceton solutions. the uv-visible and ft-ir spectra of...
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