Zl. Lu et al., SYNTHESIS AND CRYSTAL-STRUCTURE OF AN IMIDAZOLATE-BRIDGED DICOPPER TRIS(2-AMINOETHYL)AMINE COMPLEX, Transition metal chemistry, 22(6), 1997, pp. 549-552
The [Cu(tren)(Im)Cu(tren)](ClO4)(3) . MeCN complex [tren = tris(2-amin
oethyl)amine; Im = imidazolate anion] has been synthesized and charact
erized spectrally. The X-ray crystal structure analysis reveals that t
he imidazolate anion serves as a bridge to form a noncentrosymmetric d
imeric structure in the complex. The coordination geometry about each
copper(II) ion is a distorted trigonal bipyramid with three primary am
ine groups of the tren ligand forming the equatorial plane. The tertia
ry amine group and the imidazolate anion are in the axial positions.