A paramagnetic copper(III) complex containing an octahedral Cu(III)S6 coordination polyhedron

Carsten Krebs, Thorsten Glaser, Eckhard Bill, Thomas Weyhermüller, Wolfram Meyer-Klaucke, Karl Wieghardt

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Only the second octahedral, paramagnetic copper(III) complex (S=1) has now been synthesized and characterized. Six thiolato bridging ligands in the heterotrinuclear species [LCo(III)Cu(III)Co(III)L]-(ClO4)3·2Me2CO (L = 1,4,7-tris(4-tert-butyl-2-sulfidobenzyl)-1,4,7-triazacyclononane) stabilize this rare electron configuration. A section of the structure of the reduced form (Cu(II), S = 1/2 ) is shown. XAS, EXAFS, and EPR spectroscopy prove unambiguously that the one-electron oxidation to the copper(III) is metal- rather than ligand-centered.

Original languageEnglish (US)
Pages (from-to)359-361
Number of pages3
JournalAngewandte Chemie - International Edition
Volume38
Issue number3
DOIs
StatePublished - Feb 1 1999

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Copper
Ligands
Electrons
Paramagnetic resonance
Metals
Spectroscopy
Oxidation
1,4,7-triazacyclononane
perchlorate

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Krebs, Carsten ; Glaser, Thorsten ; Bill, Eckhard ; Weyhermüller, Thomas ; Meyer-Klaucke, Wolfram ; Wieghardt, Karl. / A paramagnetic copper(III) complex containing an octahedral Cu(III)S6 coordination polyhedron. In: Angewandte Chemie - International Edition. 1999 ; Vol. 38, No. 3. pp. 359-361.
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A paramagnetic copper(III) complex containing an octahedral Cu(III)S6 coordination polyhedron. / Krebs, Carsten; Glaser, Thorsten; Bill, Eckhard; Weyhermüller, Thomas; Meyer-Klaucke, Wolfram; Wieghardt, Karl.

In: Angewandte Chemie - International Edition, Vol. 38, No. 3, 01.02.1999, p. 359-361.

Research output: Contribution to journalArticle

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T1 - A paramagnetic copper(III) complex containing an octahedral Cu(III)S6 coordination polyhedron

AU - Krebs, Carsten

AU - Glaser, Thorsten

AU - Bill, Eckhard

AU - Weyhermüller, Thomas

AU - Meyer-Klaucke, Wolfram

AU - Wieghardt, Karl

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AB - Only the second octahedral, paramagnetic copper(III) complex (S=1) has now been synthesized and characterized. Six thiolato bridging ligands in the heterotrinuclear species [LCo(III)Cu(III)Co(III)L]-(ClO4)3·2Me2CO (L = 1,4,7-tris(4-tert-butyl-2-sulfidobenzyl)-1,4,7-triazacyclononane) stabilize this rare electron configuration. A section of the structure of the reduced form (Cu(II), S = 1/2 ) is shown. XAS, EXAFS, and EPR spectroscopy prove unambiguously that the one-electron oxidation to the copper(III) is metal- rather than ligand-centered.

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