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

Abstract

Three new 3D transition metal coordination complexes, namely, [Co(Aze)(L)] ( 1 ), [Cu(Aze)(L)] 2 ( 2 ) and [Cd(Aze)(L)]·3H 2 O ( 3 ) (Aze = azelaic acid, L = 1,4-bis (1-imidazolyl)-benzene) have been synthesized hydrothermally from the self-assembly of the transition metal ions (M 2 + ) 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 Cd 2 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. ► 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.