To cite this article: Alshima'a A. Massoud , Vratislav Langer , Lars Öhrstrom & Morsy A.M. Abu-Youssef (2009) Two 2-D copper(II) azido compounds: catena -poly[ di -µ 1,1 -azido, di -µ N,O -(quinolinecarboxylato)(aqua)copper(II)] and 1-D catena -poly[ di -µ N,N′ -(quinoxaline)copper(II)nitrate], Journal of Coordination Chemistry, 62:4, 519-530To link to this article: http://dx.We synthesized three copper(II) complexes with two structurally related polydentate ligands, quinoline-4-carboxylic acid (quCOOH) and quinoxaline (qux). The structures of these complexes were determined using X-ray single crystal crystallography. Complex 1, [Cu(quCOO)(N 3 )(H 2 O)] n , has a 2-D polymeric structure through di-1,1 azido groups forming (Cu 2 N 2 ) dimeric units and di-N,O quinoline carboxylate bridging the binuclear copper units. [Cu(quCOO)(N 3 )(H 2 O)] n Á 0.87MeOH, (2), has the same structure as 1 in addition to MeOH molecules separating the 2-D sheets of [Cu(quCOO)(N 3 )(H 2 O)] n . [Cu(qux)(NO 3 ) 2 ] n , (3), has no coordinated azido groups, but the quinoxaline is a bidentate bridging ligand giving a 1-D chain, while the O,O 0 chelating nitrato groups stabilize the chain structure by forming a square planar coordination sphere around copper. IR and UV-Vis spectra of the complexes are in agreement with the crystal structures.