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rdf:type
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Description
| - The tppz-bridged diruthenium complex [{(L)ClRuII}(2)(mu-tppz)](ClO4)(2), [1](ClO4), {tppz=2,3,5,6-tetrakis(2-pyridyl)-pyrazine, L=2,2''-dipyridylamine} and its mononuclear counterpart [(L)ClRuII(tppz)]ClO4, [2](ClO4) have been synthesized. The 380 mV separation between successive Ru-II/Ru-III couples in [1](2+) leads to a comproportionation constant (K-c) of 2.7x10(6). Consequently, the (RuRuIII)-Ru-II species [1](3+) exhibits a rather narrow intervalence charge transfer band at 1700 run, suggesting a class III mixed-valence state, the electronic coupling constant (V-ab) is calculated at 2940 cm(-1). Complex [1](3+) displays a rhombic EPR spectrum at 4 K (g(1)=3.390, g(2)=2.278, g(3)=1.697), characteristic of ruthenium(III) in a distorted octahedral environment. Both complexes show two successive tppz-based reduction processes [(tppz)(0/-1) and (tppz)(-1/-2)].
- The tppz-bridged diruthenium complex [{(L)ClRuII}(2)(mu-tppz)](ClO4)(2), [1](ClO4), {tppz=2,3,5,6-tetrakis(2-pyridyl)-pyrazine, L=2,2''-dipyridylamine} and its mononuclear counterpart [(L)ClRuII(tppz)]ClO4, [2](ClO4) have been synthesized. The 380 mV separation between successive Ru-II/Ru-III couples in [1](2+) leads to a comproportionation constant (K-c) of 2.7x10(6). Consequently, the (RuRuIII)-Ru-II species [1](3+) exhibits a rather narrow intervalence charge transfer band at 1700 run, suggesting a class III mixed-valence state, the electronic coupling constant (V-ab) is calculated at 2940 cm(-1). Complex [1](3+) displays a rhombic EPR spectrum at 4 K (g(1)=3.390, g(2)=2.278, g(3)=1.697), characteristic of ruthenium(III) in a distorted octahedral environment. Both complexes show two successive tppz-based reduction processes [(tppz)(0/-1) and (tppz)(-1/-2)]. (en)
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Title
| - Multistep Redox Sequences of Azopyridyl (L) Bridged Reaction Centres in Stable Radical Complex Ions {(.mu.-L)[MCl(.eta.5-C5Me5)]2}.+, M = Rh or Ir: Spectroelectrochemistry and High-frequency EPR Spectroscopy.
- Multistep Redox Sequences of Azopyridyl (L) Bridged Reaction Centres in Stable Radical Complex Ions {(.mu.-L)[MCl(.eta.5-C5Me5)]2}.+, M = Rh or Ir: Spectroelectrochemistry and High-frequency EPR Spectroscopy. (en)
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skos:prefLabel
| - Multistep Redox Sequences of Azopyridyl (L) Bridged Reaction Centres in Stable Radical Complex Ions {(.mu.-L)[MCl(.eta.5-C5Me5)]2}.+, M = Rh or Ir: Spectroelectrochemistry and High-frequency EPR Spectroscopy.
- Multistep Redox Sequences of Azopyridyl (L) Bridged Reaction Centres in Stable Radical Complex Ions {(.mu.-L)[MCl(.eta.5-C5Me5)]2}.+, M = Rh or Ir: Spectroelectrochemistry and High-frequency EPR Spectroscopy. (en)
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skos:notation
| - RIV/61388955:_____/03:54030213!RIV/2004/AV0/A54004/N
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA203/03/0821), P(OC D15.10), Z(AV0Z4040901)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/03:54030213
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - EPR spectroscopy; radical complex ions (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...ocetUcastnikuAkce
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http://linked.open...nichUcastnikuAkce
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Fiedler, Jan
- Kaim, W.
- Greulich, S.
- Reinhardt, R.
- Frantz, S.
- Wanner, M.
- Duboc-Toia, C.
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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