About: First Crystal Structure Determination and High-Frequency EPR Study of an Organoarsanecopper Radical Complex.     Goto   Sponge   NotDistinct   Permalink

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  • The red radical complex {(mu-bptz)[Cu(AsPh3)(2)](2)}(BF4) 1, bptz=3,6-bis(2-pyridyl)-1,2,4,5-tetrazine, was obtained as a stable species and characterized by X-ray crystallography, spectroelectrochemistry and EPR at 9.5 and 285 GHz. Comparison with the previously reported {(mu-bptz)[Cu(PPh3)(2)](2)}(BF4) 2 reveals longer Cu-element bonds by about 0.1 Angstrom but otherwise a similar 'organic sandwich' structure involving intramolecular pi(phenyl)-pi(tetrazine)-pi(phenyl) interactions, a 3+1 coordination at the copper(I) centers, and averaged tetrazine intraring bond distances. Reversible oxidation to a blue dication with an intense MLCT band at 650 nm occurs at -0.24 V vs. Fc(+/o). EPR studies show the effect of the higher spin-orbit coupling constant of the As vs. P atoms through slightly larger g anisotropy as determined through high frequency measurements. (C) 2003 Elsevier B.V. All rights reserved.
  • The red radical complex {(mu-bptz)[Cu(AsPh3)(2)](2)}(BF4) 1, bptz=3,6-bis(2-pyridyl)-1,2,4,5-tetrazine, was obtained as a stable species and characterized by X-ray crystallography, spectroelectrochemistry and EPR at 9.5 and 285 GHz. Comparison with the previously reported {(mu-bptz)[Cu(PPh3)(2)](2)}(BF4) 2 reveals longer Cu-element bonds by about 0.1 Angstrom but otherwise a similar 'organic sandwich' structure involving intramolecular pi(phenyl)-pi(tetrazine)-pi(phenyl) interactions, a 3+1 coordination at the copper(I) centers, and averaged tetrazine intraring bond distances. Reversible oxidation to a blue dication with an intense MLCT band at 650 nm occurs at -0.24 V vs. Fc(+/o). EPR studies show the effect of the higher spin-orbit coupling constant of the As vs. P atoms through slightly larger g anisotropy as determined through high frequency measurements. (C) 2003 Elsevier B.V. All rights reserved. (en)
Title
  • First Crystal Structure Determination and High-Frequency EPR Study of an Organoarsanecopper Radical Complex.
  • First Crystal Structure Determination and High-Frequency EPR Study of an Organoarsanecopper Radical Complex. (en)
skos:prefLabel
  • First Crystal Structure Determination and High-Frequency EPR Study of an Organoarsanecopper Radical Complex.
  • First Crystal Structure Determination and High-Frequency EPR Study of an Organoarsanecopper Radical Complex. (en)
skos:notation
  • RIV/61388955:_____/03:54030221!RIV/2004/AV0/A54004/N
http://linked.open.../vavai/riv/strany
  • 1196;1200
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA203/03/0821), P(OC D15.10), Z(AV0Z4040901)
http://linked.open...iv/cisloPeriodika
  • N/A
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
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http://linked.open...dnocenehoVysledku
  • 607362
http://linked.open...ai/riv/idVysledku
  • RIV/61388955:_____/03:54030221
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • arsane ligands; copper complex; EPR (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [8C7D58D5010A]
http://linked.open...i/riv/nazevZdroje
  • Inorganic Chemistry Communications
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...ocetUcastnikuAkce
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http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 6
http://linked.open...iv/tvurceVysledku
  • Fiedler, Jan
  • Kaim, W.
  • Sarkar, B.
  • Schwederski, B.
  • Lissner, F.
  • Schleid, T.
  • Duboc-Toia, C.
  • Ye, S.
http://linked.open...n/vavai/riv/zamer
issn
  • 1387-7003
number of pages
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