Three 3D complexes constructed from azelaic aci and rigid bis(imidazole) ligand: Syntheses, structures, thermal and photoluminescent properties

Three new 3D transition metal coordination complexes, namely, [Co(Aze)(L)] (1), [Cu(Aze)(L)]2 (2) and [Cd(Aze)(L)]·3H2O (3) (Aze = azelaic acid, L = 1,4-bis (1-imidazolyl)-benzene) have been synthesized hydrothermally from the self-assembly of the transition metal ions (M2 +) with flexible aliphatic dicarboxylate ligand (Aze) and the rigid bis(imidazole) ligand (L). All complexes display three-dimensional (3D) structures. Complex 1 shows a three-fold interpenetrating 4-connected dmp net. Complex 2 shows a noninterpenetrating 4-connected cds net. Complex 3 shows the pcu net built on 6-connected Cd2 units and particularly there exists weave-like water chains penetrating the channels of the pcu net along b direction. Furthermore, thermogravimetric studies of 1, 2 and 3, and photoluminescent property of 3 have also been investigated.

Three 3D complexes constructed from azelaic acid and rigid bis(imidazole) ligand are described. Complex 1 displays a 3-fold interpenetrating dmp net. Complex 2 shows a noninterpenetrating cds net. Complex 3 shows the pcu net with weave-like water chains along b direction. The thermogravimetric and photoluminescent properties have also been investigated.Figure optionsDownload as PowerPoint slideHighlights
► Three 3D complexes based on azelaic acid and bis(imidazole) ligands are described.
► Complex 1 displays a 3-fold interpenetrating dmp net.
► Complex 2 displays a noninterpenetrating cds net.
► Complex 3 shows a pcu net containing weave-like water chains with photoluminescence.