Two new 1D cadmium(II) azido complexes: catina-Poly[di-μ1,1-azido(2,2'-bipyridyl)cadmium(II)] and a new polymorph of catina-Poly[di-μ1,1-azido (2-acetylpyridine)cadmium(II)]
Titel:
Two new 1D cadmium(II) azido complexes: catina-Poly[di-μ1,1-azido(2,2'-bipyridyl)cadmium(II)] and a new polymorph of catina-Poly[di-μ1,1-azido (2-acetylpyridine)cadmium(II)]
Auteur:
Abu-Youssef, M. A. M.
Verschenen in:
Journal of coordination chemistry
Paginering:
Jaargang 58 (2005) nr. 15 pagina's 1377-1386
Jaar:
2005-10
Inhoud:
Two new cadmium(II) azido complexes, [Cd(2,2'-bipy)(N3)2]n (1) and [Cd(2-acpy)(N3)2]n (2) (2,2'-bipy = 2,2'-bipyridyl and 2-acpy = 2-acetylpyridine), have been synthesized and structurally characterized by single-crystal X-ray diffraction methods. The coordination environment of the central cadmium atom is distorted octahedral (MN6) in 1 and (MN5O) in 2, with one-dimensional chains formed through Cd2N2 units and alternatively chelating N,N'-bipyridyl or N,O-2-acetylpyridine groups. The central Cd(II) ion is coordinated to two nitrogen atoms of a chelating bipyridyl group or one nitrogen atom and one acetyl oxygen of 2-acetylpyridine and four nitrogen atoms of four different end-on bridging (μ1,1-N3) groups. Chains in the c direction in 1 are stabilized in b direction by π-π interactions involving the aromatic rings of bipyridyl ligands. IR and NMR spectra of the two complexes are reported.
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