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| rdf:type
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| Description
| - Based on a new, potentially tridentate radical ligand Qy•-, a semiquinoneimine with additional thioether S donor function, it has been possible to obtain a three-spin system (radical/metal/radical, [(Qy•-)CuII(Qy•-)]) with sterically unenforced non-planar copper(II) at the center. This unusual situation is caused by weak Cu-S interaction, an effect reminiscent of type 1 copper sites in proteins. In comparison to planar analogues (Chaudhuri, Wieghardt et al., J. Am. Chem. Soc. 2001, 123, 2213) the distortion of the metal is responsible for a changed spin ground state as detected by EPR. Spectroelectrochemistry reveals a very strong ligand-to-ligand inter-valence charge transfer band at about 2000 nm for the anion [(Qy•-)CuII(Qy2-)]-. While anion radical ligands yield already unusual complexes with transition metals in %22normal%22 configurations, the possible distortion adds another dimension, as shown here, allowing for a striking switch of spin combinations.
- Based on a new, potentially tridentate radical ligand Qy•-, a semiquinoneimine with additional thioether S donor function, it has been possible to obtain a three-spin system (radical/metal/radical, [(Qy•-)CuII(Qy•-)]) with sterically unenforced non-planar copper(II) at the center. This unusual situation is caused by weak Cu-S interaction, an effect reminiscent of type 1 copper sites in proteins. In comparison to planar analogues (Chaudhuri, Wieghardt et al., J. Am. Chem. Soc. 2001, 123, 2213) the distortion of the metal is responsible for a changed spin ground state as detected by EPR. Spectroelectrochemistry reveals a very strong ligand-to-ligand inter-valence charge transfer band at about 2000 nm for the anion [(Qy•-)CuII(Qy2-)]-. While anion radical ligands yield already unusual complexes with transition metals in %22normal%22 configurations, the possible distortion adds another dimension, as shown here, allowing for a striking switch of spin combinations. (en)
- Na základě nového, potenciálně tridentátního radikálového ligandu Qy•-, semichinoniminu s přídavnou thioetherickou S-donorovou funkcí, to bylo možné získat tří-spinový systém (radikál/kov/radikál, [(Qy•-) CuII(Qy•-)]) se nerovinnným Cu(II) centrem. Tato neobvyklá situace je způsobena slabou interakcí Cu-S, efekt připomíná měď v pozicích typu 1 v proteinech. Ve srovnání s rovinnými analogiemi (Chaudhuri, Wieghardt et al., J. Am. Chem. Soc. 2001, 123, 2213 ) distorze kovu má za následek změněný spinový základní stav, což bylo prokázáno EPR spektroskopií. Spektroelektrochemie ukázuje intenzívní intervalenční pás přenosu náboje ligand-ligand u 2000 nm pro anion [(Qy•-) CuII(Qy2-)]-. Zatímco aniontové radikálové ligandy poskytují neobvyklé komplexy I s přechodovými kovy v %22normálních %22 konfiguracích, možná distorse přidává další rozměr, jak ukázáno zde, dovolující neobyčejné nastavení spinových kombinací. (cs)
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| Title
| - Three-Spin System with a Twist: A Bis(semiquinonato)copper Complex with Non-Planar Copper(II) Center
- Tří-spinový systém s deformací geometrie: bis(semichononato)měďnatý komplex s neplanární mědí(II) (cs)
- Three-Spin System with a Twist: A Bis(semiquinonato)copper Complex with Non-Planar Copper(II) Center (en)
|
| skos:prefLabel
| - Three-Spin System with a Twist: A Bis(semiquinonato)copper Complex with Non-Planar Copper(II) Center
- Tří-spinový systém s deformací geometrie: bis(semichononato)měďnatý komplex s neplanární mědí(II) (cs)
- Three-Spin System with a Twist: A Bis(semiquinonato)copper Complex with Non-Planar Copper(II) Center (en)
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| skos:notation
| - RIV/61388955:_____/05:00022045!RIV06-AV0-61388955
|
| http://linked.open.../vavai/riv/strany
| |
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(1P05OC068), P(GA203/03/0821), P(IAA400400505), P(OC D15.10), Z(AV0Z40400503)
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| http://linked.open...iv/cisloPeriodika
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/05:00022045
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - copper; electrochemistry; EPR spectroscopy; radical ligands; spin-spin interactions (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
|
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| - Angewandte Chemie. International Edition in English
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| 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.
- Sarkar, B.
- Lissner, F.
- van Slageren, J.
- Schleid, T.
- Ye, S.
|
| http://linked.open...n/vavai/riv/zamer
| |
| issn
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| number of pages
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| is http://linked.open...avai/riv/vysledek
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