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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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Molecules 2017, 22(10), 1762; https://doi.org/10.3390/molecules22101762
Received: 29 September 2017 / Revised: 14 October 2017 / Accepted: 14 October 2017 / Published: 19 October 2017
(This article belongs to the Section Organic Chemistry)
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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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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