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Doubly phenoxo-bridged M-Na (M = Cu(II), Ni(II)) complexes of tetradentate Schiff base: Structure, photoluminescence, EPR, electrochemical studies and DFT computation

Das, Kuheli and Datta, Amitabha and Roy, Suman and Clegg, Jack K. and Garribba, Eugenio and Sinha, Chittaranjan and Kara, Hulya (2014) Doubly phenoxo-bridged M-Na (M = Cu(II), Ni(II)) complexes of tetradentate Schiff base: Structure, photoluminescence, EPR, electrochemical studies and DFT computation. Polyhedron, Vol. 78 , p. 62-71. ISSN 0277-5387. Article.

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DOI: 10.1016/j.poly.2014.04.032

Abstract

Phenoxo-bridged complexes [M(μ-L)Na(ClO4)(CH3OH)] (M = Cu(II) (1) and Ni(II) (2)) (H2L = N,N′-bis(3-methoxysalicylidenimino)-1,3-diaminopropane, C6H3(OMe)(OH)-CH = N-(CH2)3-N = CH-C6H3(OMe)(OH)) are structurally characterised by single-crystal X-ray diffraction study. M(II) appears in the square-plane geometry with MN2O2 coordination sphere, while the sodium ion exists with NaO6 distorted octahedral environment. The molecules pack in the solid-state forming three-dimensional arrays through C–H- - -O, O–H- - -O, C–H- - -π, and π- - -π interactions. The spectral and redox properties are theoretically explained by DFT computation of optimised geometry of the complexes.

Item Type:Article
ID Code:10003
Status:Published
Refereed:Yes
Uncontrolled Keywords:Schiff base, Cu(II) and Ni(II) complexes, EPR, cyclic voltammetry, photoluminescence
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:Pergamon / Elsevier
ISSN:0277-5387
Deposited On:07 Aug 2014 08:51

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