[Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological Activity

A series of metallosupramolecular [Fe2L3](BF4)4 “click” cylinders have been synthesized in excellent yields (90%–95%) from [Fe(H2O)6](BF4)2 and bis(bidentate) pyridyl-1,2,3-triazole ligands. All complexes were characterized by elemental analysis, IR, UV-vis, 1H-, 13C- and DOSY-NMR spectroscopies and...

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Main Authors: James D. Crowley, Christopher M. Fitchett, Lyall R. Hanton, Brian C. Monk, Alia Sagatova, Joel D. A. Tyndall, Madhu Shankar, James E. M. Lewis, Sreedhar K. Vellas
Format: Article
Language:English
Published: MDPI AG 2013-05-01
Series:Molecules
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Online Access:http://www.mdpi.com/1420-3049/18/6/6383
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author James D. Crowley
Christopher M. Fitchett
Lyall R. Hanton
Brian C. Monk
Alia Sagatova
Joel D. A. Tyndall
Madhu Shankar
James E. M. Lewis
Sreedhar K. Vellas
author_facet James D. Crowley
Christopher M. Fitchett
Lyall R. Hanton
Brian C. Monk
Alia Sagatova
Joel D. A. Tyndall
Madhu Shankar
James E. M. Lewis
Sreedhar K. Vellas
author_sort James D. Crowley
collection DOAJ
description A series of metallosupramolecular [Fe2L3](BF4)4 “click” cylinders have been synthesized in excellent yields (90%–95%) from [Fe(H2O)6](BF4)2 and bis(bidentate) pyridyl-1,2,3-triazole ligands. All complexes were characterized by elemental analysis, IR, UV-vis, 1H-, 13C- and DOSY-NMR spectroscopies and, in four cases, the structures confirmed by X-ray crystallography. Molecular modeling indicated that some of these “click” complexes were of similar size and shape to related biologically active pyridylimine-based iron(II) helicates and suggested that the “click” complexes may bind both duplex and triplex DNA. Cell-based agarose diffusion assays showed that the metallosupramolecular [Fe2L3](BF4)4 “click” cylinders display no antifungal activity against S. cerevisiae. This observed lack of antifungal activity appears to be due to the poor stability of the “click” complexes in DMSO and biological media.
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spelling doaj.art-41a265ce929c4888a94475e580927c952022-12-22T01:11:27ZengMDPI AGMolecules1420-30492013-05-011866383640710.3390/molecules18066383[Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological ActivityJames D. CrowleyChristopher M. FitchettLyall R. HantonBrian C. MonkAlia SagatovaJoel D. A. TyndallMadhu ShankarJames E. M. LewisSreedhar K. VellasA series of metallosupramolecular [Fe2L3](BF4)4 “click” cylinders have been synthesized in excellent yields (90%–95%) from [Fe(H2O)6](BF4)2 and bis(bidentate) pyridyl-1,2,3-triazole ligands. All complexes were characterized by elemental analysis, IR, UV-vis, 1H-, 13C- and DOSY-NMR spectroscopies and, in four cases, the structures confirmed by X-ray crystallography. Molecular modeling indicated that some of these “click” complexes were of similar size and shape to related biologically active pyridylimine-based iron(II) helicates and suggested that the “click” complexes may bind both duplex and triplex DNA. Cell-based agarose diffusion assays showed that the metallosupramolecular [Fe2L3](BF4)4 “click” cylinders display no antifungal activity against S. cerevisiae. This observed lack of antifungal activity appears to be due to the poor stability of the “click” complexes in DMSO and biological media.http://www.mdpi.com/1420-3049/18/6/6383iron(II)CuAACmetallosupramolecular cylindersbiological activity
spellingShingle James D. Crowley
Christopher M. Fitchett
Lyall R. Hanton
Brian C. Monk
Alia Sagatova
Joel D. A. Tyndall
Madhu Shankar
James E. M. Lewis
Sreedhar K. Vellas
[Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological Activity
Molecules
iron(II)
CuAAC
metallosupramolecular cylinders
biological activity
title [Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological Activity
title_full [Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological Activity
title_fullStr [Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological Activity
title_full_unstemmed [Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological Activity
title_short [Fe2L3]4+ Cylinders Derived from Bis(bidentate) 2-Pyridyl-1,2,3-triazole “Click” Ligands: Synthesis, Structures and Exploration of Biological Activity
title_sort fe2l3 4 cylinders derived from bis bidentate 2 pyridyl 1 2 3 triazole click ligands synthesis structures and exploration of biological activity
topic iron(II)
CuAAC
metallosupramolecular cylinders
biological activity
url http://www.mdpi.com/1420-3049/18/6/6383
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