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Synthesis, crystal structure and fluorescence properties of two dinuclear zinc(II) complexes incorporating tridentate (NNO) Schiff bases

Shit, Shyamapada and Nandy, Madhusudan and Saha, Dipankar and Zhang, Lei and Schmitt, Wolfgang and Rizzoli, Corrado and Row, Guru Tayur N (2016) Synthesis, crystal structure and fluorescence properties of two dinuclear zinc(II) complexes incorporating tridentate (NNO) Schiff bases. In: JOURNAL OF COORDINATION CHEMISTRY, 69 (16). pp. 2403-2414.

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Official URL: http://dx.doi.org/10.1080/00958972.2016.1197390

Abstract

Reactions of hydrated zinc(II) trifluoroacetate and sodium azide with two tridentate Schiff bases HL1 (2-((E)-(2-(dimethylamino)ethylimino)methyl)-4-chlorophenol) and HL2 (2-((E)-(2-(dimethylamino)ethylimino)methyl)-4-bromophenol) under the same reaction conditions yielded two dinuclear isostructural zinc(II) complexes, Zn(L-1)(N-3)](2) (1) and Zn(L-2)(N-3)](2) (2), respectively. The complexes were characterized systematically by elemental analysis, UV-Vis, FT-IR, and H-1 NMR spectroscopic methods. Single-crystal X-ray diffraction studies reveal that each of the dinuclear complexes consists of two crystallographically independent zinc(II) ions connected by double bridging phenoxides. All zinc(II) ions in 1 and 2 are surrounded by similar donor sets and display distorted square-pyramidal coordination geometries. The ligands and complexes reveal intraligand (1)(*) flourescence. The enhancement of the fluorescence intensities for the complexes compared to the ligands indicates their potential to serve as photoactive materials. GRAPHICS] .

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the TAYLOR & FRANCIS LTD, 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Id for Latest eprints
Date Deposited: 22 Oct 2016 07:04
Last Modified: 22 Oct 2016 07:04
URI: http://eprints.iisc.ac.in/id/eprint/54671

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