%0 Journal Article %1 Kaim.1988b %A Kaim, Wolfgang %A Kasack, Volker %A Binder, Herbert %A Roth, Eberhard %A Jordanov, Jeanne. %D 1988 %J Angewandte Chemie %K azodicarbonato azodicarbonato;electron azodicarbonato;redox bipyridine comproportionation configuration dinuclear ruthenium %N 9 %P 1229--1230 %T A stable bis(chelate) analog of Creutz-Taube ions %V 100 %X [Ru2(bpy)4(m-L)](PF6)3 (I; bpy = 2,2'-bipyridine; H2L = Et2 azodicarbonate) was prepd. from cis-[Ru(bpy)2Cl2].2H2O, H2L and KPF6 in refluxing ClCH2CH2Cl and was characterized by elemental anal., cyclic voltammetry, ESR, XPS, and electronic spectral methods. The comproportionation const. is 4.4 $\times$ 108. An ESR spectrum (rhombic, no hyperfine structure) was observable only $łeq$50 K. Spectral comparisons of I and [(H3N)5Ru(pyz)Ru(NH3)5]5+ (pyz = pyrazine) show that I is an electronic intermediate between a metal-centered mixed-valence complex and a ligand-centered radical complex. [on SciFinder(R)]

@article{Kaim.1988b, abstract = {[Ru2(bpy)4(\textgreek{m}-L)](PF6)3 (I; bpy = 2,2'-bipyridine; H2L = Et2 azodicarbonate) was prepd. from cis-[Ru(bpy)2Cl2].2H2O, H2L and KPF6 in refluxing ClCH2CH2Cl and was characterized by elemental anal., cyclic voltammetry, ESR, XPS, and electronic spectral methods. The comproportionation const. is 4.4 $\times$ 108. An ESR spectrum (rhombic, no hyperfine structure) was observable only $\leq$50 K. Spectral comparisons of I and [(H3N)5Ru(pyz)Ru(NH3)5]5+ (pyz = pyrazine) show that I is an electronic intermediate between a metal-centered mixed-valence complex and a ligand-centered radical complex. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Kaim, Wolfgang and Kasack, Volker and Binder, Herbert and Roth, Eberhard and Jordanov, Jeanne.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/274e0b8bbeca2271bcbbf3cc450341d6b/huebleriac}, interhash = {b09faaccda4d017ef5fa4178d59c5957}, intrahash = {74e0b8bbeca2271bcbbf3cc450341d6b}, issn = {0044-8249}, journal = {Angewandte Chemie}, keywords = {azodicarbonato azodicarbonato;electron azodicarbonato;redox bipyridine comproportionation configuration dinuclear ruthenium}, number = 9, pages = {1229--1230}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {A stable bis(chelate) analog of Creutz-Taube ions}, volume = 100, year = 1988 }