Lewis basicity of the [Co4O4]4+cubane core. Preparation of a mixed-valence (4CoII, 4CoIII) cluster with an unusual [Co8(µ4-O)4]2+core, and new [Co4O3(OH)]5+and [Co4O2(OH)2]6+cubane complexes
Authors:
- Katerina DimitrouKDKaterina Dimitrou
- Kirsten FoltingKFKirsten Folting
- William E. StreibWSWilliam E. Streib
- George ChristouGCGeorge Christou
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 11,p. 1385-1386
Abstract
[Co8O4(O2CPh)12(MeCN)3(H2O)]1b is formed on oxidation of cobalt(II) benzoate in MeCN or dmf with aqueous H2O2, and contains a [Co4O4]4+ cubane unit with each oxide attached to an additional Co atom; studies stimulated by this result show that preformed [Co4O4(O2CR)2(bipy)4]2+(bipy = 2,2′-bipyridine) can be mono- and doubly-protonated to [Co4O3(OH)(O2CR)2(bipy)4]3+ and [Co4O2(OH)2(O2CR)2(bipy)4]4+, respectively.Keywords
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