A dimeric nickel(II) complex of 7-azaindole

Abstract

The synthesis and properties of the red dimeric nickel(11) complex [Ni₂(C₇H_,N₂)₄], where C₇H₅N₂^-is the anion of 7-azaindole (1H-pyrrolo[2,3-b]pyridine), are reported. The diamagnetism and electronic spectrum are consistent with a square-planar environment about each nickel atom. Adimeric molecular structure with four anionic 7-azaindole ligands bridging a pair of bonded nickel atoms is proposed.