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Crystal Structure and Photoluminescence of a Tetranuclear Cadmium Complex

Crystal Structure and Photoluminescence of a Tetranuclear Cadmium Complex A novel tetranuclear cadmium complex ([{Cd(C15H8O7S)(H2O)(DMSO)}3{Cd(C15H8O7S)(H2O)2}]·3DMSO·H2O) was obtained by the self‐assembly of Cd(II) with 5,7‐dihydroxyflavone‐6‐sulfonate. The complex was characterized by 1H NMR, IR, elemental analysis and X‐ray single‐crystal diffraction studies. It crystallizes in triclinic, space group $ P {\bar 1} $. In the complex, the chelate atoms of Cd(II) are all from oxygen. Four Cd(II) are connected via the carbonyl and 5‐hydroxyanion of four ligands and form an approximate square. Four ligands locate at two sides of the square, and two of them at the same side are almost parallel and exist aromatic π‐π stacking. Ligands on the opposite side of the square are nearly perpendicular. The result of the luminescent studies indicated that the solid of the complex shwed photoluminescent properties because of a combination of coordination, hydrogen bonding and π‐π stacking interaction in the molecule structure. The complex emits green fluorescence (λem=496 nm) when it is excited at the wavelength of 440 nm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Chemistry Wiley

Crystal Structure and Photoluminescence of a Tetranuclear Cadmium Complex

Chinese Journal of Chemistry , Volume 30 (5) – May 1, 2012

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References (16)

Publisher
Wiley
Copyright
Copyright © 2012 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1001-604X
eISSN
1614-7065
DOI
10.1002/cjoc.201100411
Publisher site
See Article on Publisher Site

Abstract

A novel tetranuclear cadmium complex ([{Cd(C15H8O7S)(H2O)(DMSO)}3{Cd(C15H8O7S)(H2O)2}]·3DMSO·H2O) was obtained by the self‐assembly of Cd(II) with 5,7‐dihydroxyflavone‐6‐sulfonate. The complex was characterized by 1H NMR, IR, elemental analysis and X‐ray single‐crystal diffraction studies. It crystallizes in triclinic, space group $ P {\bar 1} $. In the complex, the chelate atoms of Cd(II) are all from oxygen. Four Cd(II) are connected via the carbonyl and 5‐hydroxyanion of four ligands and form an approximate square. Four ligands locate at two sides of the square, and two of them at the same side are almost parallel and exist aromatic π‐π stacking. Ligands on the opposite side of the square are nearly perpendicular. The result of the luminescent studies indicated that the solid of the complex shwed photoluminescent properties because of a combination of coordination, hydrogen bonding and π‐π stacking interaction in the molecule structure. The complex emits green fluorescence (λem=496 nm) when it is excited at the wavelength of 440 nm.

Journal

Chinese Journal of ChemistryWiley

Published: May 1, 2012

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