|
|||||
|
|
Preferential azido bridging regulating the structural aspects in cobalt(III) and copper(II)-Schiff base complexes: Syntheses, magnetostructural correlations and catalytic studies |
|
| Authors: | Aurkie Ray Guillaume Pilet Carlos J Gómez-García Sebastián Bellú |
| Institution: | a Department of Chemistry, Jadavpur University, Raja S.C. Mullick Road, Kolkata 700 032, India b School of Engineering and Physical Sciences, Heriot Watt University, Edinburgh EH14 4AS, UK c Groupe de Cristallographie et Ingénierie Moléculaire Laboratoire des Multimatériaux et Interfaces UMR 5615 CNRS, Université Claude Bernard Lyon 1, Bât. Jules Raulin, 43 bd du 11 Novembre, 1918 69622 Villeurbanne, Cedex, France d Department of Chemistry, Faculty of Arts and Sciences, Süleyman Demirel University, Isparta, Turkey e Instituto de Ciencia Molecular (ICMol), Universidad de of Valencia, Parque Científico, 46980 Paterna, Spain f Instituto de Química Rosario (IQUIR), CONICET, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK Rosario, Argentina |
| Abstract: | A tridentate NNO donor Schiff base ligand (1Z,3E)-3-((pyridin-2-yl)methylimino)-1-phenylbut-1-en-1-ol = LH] in presence of azide ions coordinates with cobalt(II) and copper(II) ions giving rise to three new coordination complexes Co2(L)2(μ1,1-N3)2(N3)2] (1), Cu2(L)2(μ1,3-N3)]·ClO4 (2) and (μ1,1-N3)2Cu5(μ-OL)2(μ1,1-N3)4(μ1,1,1-N3)2]n (3). The complexes have been characterized by elemental analysis, FT-IR, UV-Vis spectral studies, and single crystal X-ray diffraction studies. These complexes demonstrate that under different synthetic conditions the azide ions and the Schiff base ligand (LH) show different coordination modes with cobalt(II) and copper(II) ions, giving rise to unusual dinuclear and polynuclear species (1, 2 and 3) whose structural variations are discussed. Magneto-structural correlation for the very rare singly μ1,3-N3 bridged CuII-Schiff base dinuclear species (2) has been studied. In addition, the catalytic properties of 1 for alkene oxidation and the general catalase-like activity behavior of 2 have been discussed. |
| Keywords: | μ1 1- μ1 1 1- μ1 3-Azide M = CoIII CuII Schiff base Crystal structures VTM Alkene oxidation |
| 本文献已被 ScienceDirect 等数据库收录！ | |