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http://hdl.handle.net/2445/154910
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DC Field | Value | Language |
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dc.contributor.author | Paul, Aparup | - |
dc.contributor.author | Bertolasi, Valerio | - |
dc.contributor.author | Figuerola i Silvestre, Albert | - |
dc.contributor.author | Manna, Subal Chandra | - |
dc.date.accessioned | 2020-04-03T11:08:46Z | - |
dc.date.available | 2020-04-03T11:08:46Z | - |
dc.date.issued | 2016-09-23 | - |
dc.identifier.issn | 0277-5387 | - |
dc.identifier.uri | http://hdl.handle.net/2445/154910 | - |
dc.description.abstract | ID copper(II) complex, [Cu2(L)2(fum)]∙H2O}n (1) has been synthesized using fumarate (fum2-) and a Schiff base (HL), derived from the condensation reaction of 2-amino-1-butanol and salicyldehyde. Complex 1 has been characterized by X-ray crystal structure, FT-IR, electronic absorption and fluorescence spectroscopic methods. The structural determination reveals that complex 1 crystallizes in the monoclinic system with space group P21/n and form 1D polymeric chain, built by bridging fum. Weak π¿π and C-H¿π interactions in 1, lead to a 3D supramolecular architecture. Complex 1 exhibits fluorescence at room temperature with a quantum yield (Φs) of 0.257. The interactions of complex 1 with bovine serum albumin (BSA) and human serum albumin (HSA) were studied using electronic absorption and fluorescence spectroscopic techniques and the analysis shows that complex 1 interaction with BSA / HSA occurs mainly with ground state association process. Calculated values of apparent association constants are 1.34 × 104 M-1 and 1.81 × 104 M-1 for BSA and HAS, respectively, at 300 K. The number of binding sites and binding constants were calculated using double logarithm regression equation. The interaction of complex 1 with the calf thymus DNA (CT-DNA) was also investigated using electronic absorption and fluorescence spectroscopic methods. The results show that complex 1 has binding affinity to CT-DNA in the order of 2.96×105 M-1. Low temperature magnetic measurements reveal existence of antiferromagnetic interaction in complex 1. The magnetic data have been fitted considering complex 1 as a pseudo-dinuclear system, with the two copper(II) atoms bridged by two carboxylate oxygen atoms, since the coupling through long fum bridge is almost nil. The best-fit parameters obtained with this model are J = - 60 cm-1, gCu = 2.20. | - |
dc.format.extent | 11 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier Ltd | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.poly.2016.09.028 | - |
dc.relation.ispartof | Polyhedron, 2016, vol. 119, p. 460-470 | - |
dc.relation.uri | https://doi.org/10.1016/j.poly.2016.09.028 | - |
dc.rights | cc-by-nc-nd (c) Elsevier Ltd, 2016 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es | - |
dc.source | Articles publicats en revistes (Química Inorgànica i Orgànica) | - |
dc.subject.classification | ADN | - |
dc.subject.classification | Estructura cristal·lina (Sòlids) | - |
dc.subject.classification | Propietats magnètiques | - |
dc.subject.classification | Lligands | - |
dc.subject.other | DNA | - |
dc.subject.other | Layer structure (Solids) | - |
dc.subject.other | Magnetic properties | - |
dc.subject.other | Ligands | - |
dc.title | DNA/protein binding and magnetic properties of a 1D Cu(II) complex containing fumarate and tridentate Schiff base ligands | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 668152 | - |
dc.date.updated | 2020-04-03T11:08:46Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Química Inorgànica i Orgànica) |
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668152.pdf | 1.66 MB | Adobe PDF | View/Open |
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