Bhowmik, Pallab ; Das, Lakshmi Kanta ; Chattopadhyay, Shouvik ; Ghosh, Ashutosh (2015) A dinuclear and a 1D zigzag chain of copper(II) complexes with N2O donor Schiff base ligand and psuedohalides (azide and dicyanamide): studies on catecholase-like activity Inorganica Chimica Acta, 430 . pp. 24-29. ISSN 0020-1693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.ica.2015.01.039
Abstract
Two copper(II) complexes, [Cu2L2(μ1,1-N3)2]•2CH2Cl2 (1) and [CuL(μ1,5-dca)]n(dca = dicyanamide) (2) have been synthesized using a tridentate Schiff base ligand, 1-[(3-methylamino-propylimino)-methyl]-naphthalen-2-ol (HL) and azide or dicyanamide as co-ligand. Both complexes are characterized by elemental analysis, IR and UV–vis spectroscopy and single crystal X-ray diffraction studies. The coordination geometry around the copper center in complex 1 is as an elongated (4 + 1) square pyramid and that in complex 2 is square planar with the tridentate Schiff base ligand in the basal plane. Complex 1 is a centrosymmetric dimer in which metal centers are connected by the double μ-1,1-azido bridges. On the other hand, complex 2 is a 1D zigzag chain in which metal centers are connected by μ1,5-N(CN)2 ligands. The catecholase like activity for both complexes have been studied by using 3,5-di-tert-butylcatechol (3,5-DTBC) as the substrate. Complex 1 shows higher activity (kcat = 40.8 h−1) than that of complex 2 (27.6 h−1) towards such oxidation reaction.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Crystal Structure; Schiff Base; Copper(II); Pseudohalide; Catechol-like Activity |
| ID Code: | 108202 |
| Deposited On: | 13 Oct 2017 13:05 |
| Last Modified: | 13 Oct 2017 13:05 |
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