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Molecules 2017, 22(10), 1762; doi:10.3390/molecules22101762

Self-Assembly with 2,6-Bis(1-(pyridin-4-ylmethyl)-1H-1,2,3-triazol-4-yl)pyridine: Silver(I) and Iron(II) Complexes

Department of Chemistry, University of Otago, P.O. Box 56, Dunedin 9016, Otago, New Zealand
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Received: 29 September 2017 / Revised: 14 October 2017 / Accepted: 14 October 2017 / Published: 19 October 2017
(This article belongs to the Section Organic Synthesis)
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Abstract

A new “click” ligand, 2,6-bis(1-(pyridin-4-ylmethyl)-1H-1,2,3-triazol-4-yl)pyridine (L) featuring a tridentate 2,6-bis(1,2,3-triazol-4-yl)pyridine (tripy) pocket and two pyridyl (py) units was synthesized in modest yield (42%) using the copper(I) catalyzed azide-alkyne cycloaddition (CuAAC) reaction. The coordination chemistry of the ligand with silver(I) and iron(II) ions was examined using a battery of solution (1H and DOSY (diffusion ordered spectroscopy) nuclear magnetic resonance (NMR), infrared and absorption spectroscopies, high-resolution electrospray ionization mass spectrometry (HR-ESI-MS)), and solid state (X-ray crystallography, elemental analysis) techniques. When treated with silver(I) ions, the ligand forms discrete [Ag(L)]+ (X, where X = BF4, NO3 or SbF6) complexes in dimethyl sulfoxide (DMSO) solution but these complexes crystallize as coordination polymers. The addition of [Fe(H2O)6](BF4)2 to an acetonitrile solution of the ligand forms the expected monomeric octahedral [Fe(L)2]2+ complex and treatment of the iron(II) complex with AgBF4 generates a heterometallic linear coordination polymer. View Full-Text
Keywords: silver(I); CuAAC “click”; iron(II); metallosupramolecular; co-ordination polymer; self-assembly silver(I); CuAAC “click”; iron(II); metallosupramolecular; co-ordination polymer; self-assembly
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ross, D.A.W.; Preston, D.; Crowley, J.D. Self-Assembly with 2,6-Bis(1-(pyridin-4-ylmethyl)-1H-1,2,3-triazol-4-yl)pyridine: Silver(I) and Iron(II) Complexes. Molecules 2017, 22, 1762.

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