Abstract
Bis(tetraazabutadiene)nickel complexes, [Ni(Ar,N4),], have been prepared by reactions of bis( 1,s-cyc1ooctadiene)nickel
or bis(cyclopentadieny1)nickel with aryl azides (Ar = 4-MeC6H4, 4-MeOC6H4, 4-ClC6H4, and 3,5-Me). The reaction
with bis(cyclopentadieny1)nickel proceeds via [Ni(Ar2N4)($-CSH5)]. The crystal and molecular structure of bis[ 1,4-
bis(3,5-dimethylphenyl)tetraazabutadiene]nickel, which is the first example of a bis(tetraazabutadiene)metal complex,
have been determined by a single-crystal
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