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)55+ (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)
%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)55+ (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
}