Paramagnetic Ru(bpy)22(μ-L3+ L = N,O;N',O'-coordinating 4,7-phenanthroline-5,6-semidione and P,O;P',O'-coordinating 2,5-bis(diphenylphosphino)-p-benzosemiquinone; bpy = 2,2'-bipyridine were obtained as redox-active yet stable species. UV-visible-near-IR spectrosocopic results were analyzed for the 3 chem. and electrochem. available oxidn. states (2+/3+/4+), and the ESR data of the (3+) intermediates show that these 1st binuclear semiquinone complexes are situated at the borderline between anion radical complexes and metal-centered mixed-valent dimers. on SciFinder(R)
%0 Journal Article
%1 Ernst.1989
%A Ernst, Sylvia
%A Haenel, Peter
%A Jordanov, Jeanne
%A Kaim, Wolfgang
%A Kasack, Volker
%A Roth, Eberhard.
%D 1989
%J Journal of the American Chemical Society
%K bipyridine configuration electrochem redox ruthenium semiquinone semiquinone;ESR semiquinone;UV semiquinone;electron semiquinone;phenanthrolinesemidione semiquinone;phosphinobenzosemiquinone
%N 5
%P 1733--1738
%R 10.1021/ja00187a026
%T Stable binuclear o- and p-semiquinone complexes of Ru(bpy)22+. Radical ion versus mixed-valence dimer formulation
%V 111
%X Paramagnetic Ru(bpy)22(μ-L3+ L = N,O;N',O'-coordinating 4,7-phenanthroline-5,6-semidione and P,O;P',O'-coordinating 2,5-bis(diphenylphosphino)-p-benzosemiquinone; bpy = 2,2'-bipyridine were obtained as redox-active yet stable species. UV-visible-near-IR spectrosocopic results were analyzed for the 3 chem. and electrochem. available oxidn. states (2+/3+/4+), and the ESR data of the (3+) intermediates show that these 1st binuclear semiquinone complexes are situated at the borderline between anion radical complexes and metal-centered mixed-valent dimers. on SciFinder(R)
@article{Ernst.1989,
abstract = {Paramagnetic {[Ru(bpy)2]2(μ-L}3+ [L = N,O;N',O'-coordinating 4,7-phenanthroline-5,6-semidione and P,O;P',O'-coordinating 2,5-bis(diphenylphosphino)-p-benzosemiquinone; bpy = 2,2'-bipyridine] were obtained as redox-active yet stable species. UV-visible-near-IR spectrosocopic results were analyzed for the 3 chem. and electrochem. available oxidn. states (2+/3+/4+), and the ESR data of the (3+) intermediates show that these 1st binuclear semiquinone complexes are situated at the borderline between anion radical complexes and metal-centered mixed-valent dimers. [on SciFinder(R)]},
added-at = {2019-07-15T13:41:23.000+0200},
author = {Ernst, Sylvia and Haenel, Peter and Jordanov, Jeanne and Kaim, Wolfgang and Kasack, Volker and Roth, Eberhard.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/271be9cd5ac966edd4ef3c6b7f8c53b63/b_schwederski},
doi = {10.1021/ja00187a026},
interhash = {eee42a6edcfa2ad9eb63266a540ac815},
intrahash = {71be9cd5ac966edd4ef3c6b7f8c53b63},
issn = {0002-7863},
journal = {Journal of the American Chemical Society},
keywords = {bipyridine configuration electrochem redox ruthenium semiquinone semiquinone;ESR semiquinone;UV semiquinone;electron semiquinone;phenanthrolinesemidione semiquinone;phosphinobenzosemiquinone},
number = 5,
pages = {1733--1738},
timestamp = {2019-07-15T11:42:10.000+0200},
title = {Stable binuclear o- and p-semiquinone complexes of [Ru(bpy)2]2+. Radical ion versus mixed-valence dimer formulation},
volume = 111,
year = 1989
}
