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Description
  • The compound [{(acac)(2)Ru}(3)(L)] (1) undergoes three well-separated one-electron oxidation and reduction processes. The EPR results indicate electron removal from the ruthenium(II) centres on oxidation and the occupation of a largely L-based molecular orbital on reduction. In spite of well-separated (.Delta.E greater than or equal to 340 mV) oxidation no obvious intervalence charge transfer bands were detected in the Vis, NIR or IR regions, suggesting very weak electronic coupling between the metal centres in the mixed-valent intermediates 1(+) and 1(2+). The separated (.Delta.E greater than or equal to 540 mV) stepwise reduction produces weak near-infrared features associated with partially occupied pi* orbitals of L, the unusually high g anisotropy in the EPR spectrum of 1(-) is attributed to the occupation of a degenerate MO by the unpaired electron.
  • The compound [{(acac)(2)Ru}(3)(L)] (1) undergoes three well-separated one-electron oxidation and reduction processes. The EPR results indicate electron removal from the ruthenium(II) centres on oxidation and the occupation of a largely L-based molecular orbital on reduction. In spite of well-separated (.Delta.E greater than or equal to 340 mV) oxidation no obvious intervalence charge transfer bands were detected in the Vis, NIR or IR regions, suggesting very weak electronic coupling between the metal centres in the mixed-valent intermediates 1(+) and 1(2+). The separated (.Delta.E greater than or equal to 540 mV) stepwise reduction produces weak near-infrared features associated with partially occupied pi* orbitals of L, the unusually high g anisotropy in the EPR spectrum of 1(-) is attributed to the occupation of a degenerate MO by the unpaired electron. (en)
  • Sloučenina [{(acac)(2)Ru}(3)(L)] (1 ) podléhá třem dobře odděleným jednoelektronovým oxidačním a redukčním procesům. EPR výsledky ukazují odebrání elektronu z rutheniových(II) center během oxidace a obsazení molekulárního orbitalu příslušejícího k L během redukce. I přes dobře oddělenou oxidaci (.Delta.E větší než nebo rovná se 340 mV) nebyl detekován pozorovatelný intervalenční pás v Vis, NIR nebo IR oblasti, což ukazuje na velmi slabé elektronické propojení mezi kovovými centry v intermediátech se smíšeným valenčním stavem 1(+) a 1(2+). Oddělená (.Delta.E větší než nebo rovna 540 mV) postupná redukce produkuje slabé near-infrared charakteristiky spojené s částečně obsazenými pi* orbitaly L, neobvykle vysoká g anisotropie v EPR spektru 1( - ) je přičítána obsazení degenerovaného MO nepárovým elektronem. (cs)
Title
  • The Triruthenium Complex [{(acac)(2)Ru-II}(3)(L)] Containing a Conjugated Diquinoxaline[2,3-a : 2 '',3 ''-c]phenazine (L) Bridge and Acetylacetonate (acac) as Ancillary Ligands. Synthesis, Spectroelectrochemical and EPR Investigation
  • Třírutheniový komplex [{(acac)(2)Ru-II}(3)(L)] obsahovat konjugovaný dichinoxalin[2,3-a: 2 '', 3 ''-c]phenazinový (L ) můstek a acetylacetonát (acac) jak doplňkový ligand. Syntéza, spektroelektrochemické a EPR studium (cs)
  • The Triruthenium Complex [{(acac)(2)Ru-II}(3)(L)] Containing a Conjugated Diquinoxaline[2,3-a : 2 '',3 ''-c]phenazine (L) Bridge and Acetylacetonate (acac) as Ancillary Ligands. Synthesis, Spectroelectrochemical and EPR Investigation (en)
skos:prefLabel
  • The Triruthenium Complex [{(acac)(2)Ru-II}(3)(L)] Containing a Conjugated Diquinoxaline[2,3-a : 2 '',3 ''-c]phenazine (L) Bridge and Acetylacetonate (acac) as Ancillary Ligands. Synthesis, Spectroelectrochemical and EPR Investigation
  • Třírutheniový komplex [{(acac)(2)Ru-II}(3)(L)] obsahovat konjugovaný dichinoxalin[2,3-a: 2 '', 3 ''-c]phenazinový (L ) můstek a acetylacetonát (acac) jak doplňkový ligand. Syntéza, spektroelektrochemické a EPR studium (cs)
  • The Triruthenium Complex [{(acac)(2)Ru-II}(3)(L)] Containing a Conjugated Diquinoxaline[2,3-a : 2 '',3 ''-c]phenazine (L) Bridge and Acetylacetonate (acac) as Ancillary Ligands. Synthesis, Spectroelectrochemical and EPR Investigation (en)
skos:notation
  • RIV/61388955:_____/04:00101058!RIV/2005/AV0/A54005/N
http://linked.open.../vavai/riv/strany
  • 754;758
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(OC D14.20), P(OC D15.10), Z(AV0Z4040901)
http://linked.open...iv/cisloPeriodika
  • 5
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 590894
http://linked.open...ai/riv/idVysledku
  • RIV/61388955:_____/04:00101058
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • nonlinear-optical properties; electrochemical properties; spectroelectrochemistry (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [3E3BD9F68EE9]
http://linked.open...i/riv/nazevZdroje
  • Dalton Transactions
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • -
http://linked.open...iv/tvurceVysledku
  • Fiedler, Jan
  • Kaim, W.
  • Lahiri, G. K.
  • Sarkar, B.
  • Patra, S.
  • Ghumaan, S.
http://linked.open...n/vavai/riv/zamer
issn
  • 1477-9226
number of pages
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