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 language||English (US)|
|Number of pages||3|
|Journal||Angewandte Chemie - International Edition|
|State||Published - Feb 1 1999|
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