Isovalent and Mixed-Valent Diruthenium Complexes (acac)2RuII(m-bpytz)RuII(acac)2 and (acac)2RuII(m-bpytz)RuIII(acac)2(ClO4) (acac = Acetylacetonate and bpytz = 3,6-Bis(3,5-dimethylpyrazolyl)-1,2,4,5-tetrazine): Synthesis, Spectroelectrochemical, and EPR Investigation
The title compds. involving the structurally characterized bridging ligand bpytz were characterized, showing very strong electrochem. stabilization of the mixed-valent RuIIRuIII state (Kc = 1013.9) but no detectable (e \textless 20 M-1 cm-1) intervalence charge-transfer band in the IR region. In situ redn. of the neutral precursor produces a diruthenium(II) complex of the bpytz radical anion according to EPR spectroscopy, whereas oxidn. of the mixed-valent form leads to a diruthenium(III) species. on SciFinder(R)
%0 Journal Article
%1 Patra.2004c
%A Patra, Srikanta
%A Sarkar, Biprajit
%A Ghumaan, Sandeep
%A Fiedler, Jan
%A Kaim, Wolfgang
%A Lahiri, Goutam Kumar.
%D 2004
%J Inorganic Chemistry
%K ESR;ruthenium acetylacetonate comproportionation crystal electrochem prepn pyrazolyltetrazine pyrazolyltetrazine;mixed ruthenium spectroelectrochem structure valent
%N 19
%P 6108--6113
%R 10.1021/ic049346r
%T Isovalent and Mixed-Valent Diruthenium Complexes (acac)2RuII(m-bpytz)RuII(acac)2 and (acac)2RuII(m-bpytz)RuIII(acac)2(ClO4) (acac = Acetylacetonate and bpytz = 3,6-Bis(3,5-dimethylpyrazolyl)-1,2,4,5-tetrazine): Synthesis, Spectroelectrochemical, and EPR Investigation
%V 43
%X The title compds. involving the structurally characterized bridging ligand bpytz were characterized, showing very strong electrochem. stabilization of the mixed-valent RuIIRuIII state (Kc = 1013.9) but no detectable (e \textless 20 M-1 cm-1) intervalence charge-transfer band in the IR region. In situ redn. of the neutral precursor produces a diruthenium(II) complex of the bpytz radical anion according to EPR spectroscopy, whereas oxidn. of the mixed-valent form leads to a diruthenium(III) species. on SciFinder(R)
@article{Patra.2004c,
abstract = {The title compds. involving the structurally characterized bridging ligand bpytz were characterized, showing very strong electrochem. stabilization of the mixed-valent RuIIRuIII state (Kc = 1013.9) but no detectable (\textgreek{e} {\textless} 20 M-1 cm-1) intervalence charge-transfer band in the IR region. In situ redn. of the neutral precursor produces a diruthenium(II) complex of the bpytz radical anion according to EPR spectroscopy, whereas oxidn. of the mixed-valent form leads to a diruthenium(III) species. [on SciFinder(R)]},
added-at = {2022-06-15T11:26:56.000+0200},
author = {Patra, Srikanta and Sarkar, Biprajit and Ghumaan, Sandeep and Fiedler, Jan and Kaim, Wolfgang and Lahiri, Goutam Kumar.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/27ab5e996dcab034048d323e920e35b0f/huebleriac},
doi = {10.1021/ic049346r},
interhash = {31fe0fb0bcba3e69baccd67170e47422},
intrahash = {7ab5e996dcab034048d323e920e35b0f},
issn = {0020-1669},
journal = {Inorganic Chemistry},
keywords = {ESR;ruthenium acetylacetonate comproportionation crystal electrochem prepn pyrazolyltetrazine pyrazolyltetrazine;mixed ruthenium spectroelectrochem structure valent},
number = 19,
pages = {6108--6113},
timestamp = {2022-06-15T09:26:56.000+0200},
title = {Isovalent and Mixed-Valent Diruthenium Complexes [(acac)2RuII(\textgreek{m}-bpytz)RuII(acac)2] and [(acac)2RuII(\textgreek{m}-bpytz)RuIII(acac)2](ClO4) (acac = Acetylacetonate and bpytz = 3,6-Bis(3,5-dimethylpyrazolyl)-1,2,4,5-tetrazine): Synthesis, Spectroelectrochemical, and EPR Investigation},
volume = 43,
year = 2004
}
