Synthesis, characterization, and luminescence of zinc(II) and cadmium(II) coordination complexes: [Zn(phen) 2 (CH3COO)](ClO4), [Zn(bpy)2 (ClO4)](ClO4), and [Cd(phen)2 (NO3)2 ]

Authors : Ibrahim Kani, Mehmet Kurtça

Pages : 993-1006

Doi:10.3906/kim-1303-39

View : 18 | Download : 9

Publication Date : 9999-12-31

Article Type : Makaleler

Abstract :Three metal complexes, [Zn(phen)2(CH3COO)](ClO4) (1), [Zn(bpy)2(ClO4)](ClO4) (2), and [Cd(phen)2 (NO3)2] (3) (phen = 1,10-phenanthroline, bpy = 2,2 {Abedini, 2005 #222} -bipyridine), were synthesized and their structures were determined by single-crystal X-ray diffraction analyses. In 1, Zn(II) is coordinated by 4 nitrogen atoms from 2 phen molecules and 2 oxygen atoms from 1 acetato to form an octahedral configuration. In 2, Zn(II) has pentacoordination geometry with chelating 2 bpy and 1 perchlorato ion. In 3, phen and NO3- serve as bidentate ligands coordinating to Cd(II) through their nitrogen and oxygen atoms to form 8 coordination. Three-dimensional frameworks of complexes 1--3 are produced by hydrogen bonding, and p - p and C-H ... p interactions. Additionally, complexes 1--3 exhibit strong solid state fluorescent emission at room temperature.
Keywords : Coordination complex, cadmium, zinc, 1, 10-phenanthroline, photoluminescence, 2, 2'-bipyridine