Bis(1,4-di-tert-butyl-1,4-diazabutadiene)gallium is not a gallium(II) compound
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 8,p. 597-598
- https://doi.org/10.1039/c39910000597
Abstract
The recently reported paramagnetic compounds (dbdab)2M (dbdab = 1,4-di-tert-butyl-1,4-diazabutadiene, M = Ga, Al), both contain trivalent metal bound to one singly and one doubly reduced dbdab ligand; the larger metal hyperfine coupling in the EPR spectrum of the gallium complex is not due to a gallium(II) oxidation state, it is simply a result Of the quite large isotropic hyperfine coupling constants of 69Ga and 71Ga as demonstrated previously for the related radicals (bpy–˙)MIIIMe2(bpy = 2,2′-bipyridine).Keywords
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