1
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An investigation into the coordination chemistry of tripodal “click” triazole ligands with Mn, Ni, Co and Zn ions. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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2
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Abigail Jennifer G, Ebenezer C, Vijay Solomon R. Selective Complexation of trivalent Americium over Europium with substituted Triazolebipyridine-based Ligand in High Level-Liquid Waste- A DFT investigation. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Henwood AF, Hegarty IN, McCarney EP, Lovitt JI, Donohoe S, Gunnlaugsson T. Recent advances in the development of the btp motif: A versatile terdentate coordination ligand for applications in supramolecular self-assembly, cation and anion recognition chemistries. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214206] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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4
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Capel Berdiell I, Davies DJ, Woodworth J, Kulmaczewski R, Cespedes O, Halcrow MA. Structures and Spin States of Iron(II) Complexes of Isomeric 2,6-Di(1,2,3-triazolyl)pyridine Ligands. Inorg Chem 2021; 60:14988-15000. [PMID: 34547208 DOI: 10.1021/acs.inorgchem.1c02404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Iron(II) complex salts of 2,6-di(1,2,3-triazol-1-yl)pyridine (L1) are unexpectedly unstable in undried solvent. This is explained by the isolation of [Fe(L1)4(H2O)2][ClO4]2 and [Fe(NCS)2(L1)2(H2O)2]·L1, containing L1 bound as a monodentate ligand rather than in the expected tridentate fashion. These complexes associate into 44 grid structures through O-H···N hydrogen bonding; a solvate of a related 44 coordination framework, catena-[Cu(μ-L1)2(H2O)2][BF4]2, is also presented. The isomeric ligands 2,6-di(1,2,3-triazol-2-yl)pyridine (L2) and 2,6-di(1H-1,2,3-triazol-4-yl)pyridine (L3) bind to iron(II) in a more typical tridentate fashion. Solvates of [Fe(L3)2][ClO4]2 are low-spin and diamagnetic in the solid state and in solution, while [Fe(L2)2][ClO4]2 and [Co(L3)2][BF4]2 are fully high-spin. Treatment of L3 with methyl iodide affords 2,6-di(2-methyl-1,2,3-triazol-4-yl)pyridine (L4) and 2-(1-methyl-1,2,3-triazol-4-yl)-6-(2-methyl-1,2,3-triazol-4-yl)pyridine (L5). While salts of [Fe(L5)2]2+ are low-spin in the solid state, [Fe(L4)2][ClO4]2·H2O is high-spin, and [Fe(L4)2][ClO4]2·3MeNO2 exhibits a hysteretic spin transition to 50% completeness at T1/2 = 128 K (ΔT1/2 = 6 K). This transition proceeds via a symmetry-breaking phase transition to an unusual low-temperature phase containing three unique cation sites with high-spin, low-spin, and 1:1 mixed-spin populations. The unusual distribution of the spin states in the low-temperature phase reflects "spin-state frustration" of the mixed-spin cation site by an equal number of high-spin and low-spin nearest neighbors. Gas-phase density functional theory calculations reproduce the spin-state preferences of these and some related complexes. These highlight the interplay between the σ-basicity and π-acidity of the heterocyclic donors in this ligand type, which have opposing influences on the molecular ligand field. The Brønsted basicities of L1-L3 are very sensitive to the linkage isomerism of their triazolyl donors, which explains why their iron complex spin states show more variation than the better-known iron(II)/2,6-dipyrazolylpyridine system.
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Affiliation(s)
- Izar Capel Berdiell
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Daniel J Davies
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Jack Woodworth
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, E. C. Stoner Building, Leeds LS2 9JT, U.K
| | - Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
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5
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McCarney EP, Lovitt JI, Gunnlaugsson T. Mechanically Interlocked Chiral Self-Templated [2]Catenanes from 2,6-Bis(1,2,3-triazol-4-yl)pyridine (btp) Ligands. Chemistry 2021; 27:12052-12057. [PMID: 34106499 PMCID: PMC8457180 DOI: 10.1002/chem.202101773] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Indexed: 12/24/2022]
Abstract
We report the efficient self-templated formation of optically active 2,6-bis(1,2,3-triazol-4-yl)pyridine (btp) derived homocircuit [2]catenane enantiomers. This represents the first example of the enantiopure formation of chiral btp homocircuit [2]catenanes from starting materials consisting of a classical chiral element; X-ray diffraction crystallography enabled the structural characterization of the [2]catenane. The self-assembly reaction was monitored closely in solution facilitating the characterization of the pseudo-rotaxane reaction intermediate prior to mechanically interlocking the pre-organised system via ring-closing metathesis.
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Affiliation(s)
- Eoin P. McCarney
- School of Chemistryand SFI Synthesis and Solid State Pharmaceutical Centre (SSPC)Trinity Biomedical Sciences Institute (TBSI)Trinity College DublinThe University of DublinDublin 2Ireland
| | - June I. Lovitt
- School of Chemistryand SFI Synthesis and Solid State Pharmaceutical Centre (SSPC)Trinity Biomedical Sciences Institute (TBSI)Trinity College DublinThe University of DublinDublin 2Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistryand SFI Synthesis and Solid State Pharmaceutical Centre (SSPC)Trinity Biomedical Sciences Institute (TBSI)Trinity College DublinThe University of DublinDublin 2Ireland
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6
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Dierks P, Kruse A, Bokareva OS, Al-Marri MJ, Kalmbach J, Baltrun M, Neuba A, Schoch R, Hohloch S, Heinze K, Seitz M, Kühn O, Lochbrunner S, Bauer M. Distinct photodynamics of κ-N and κ-C pseudoisomeric iron(II) complexes. Chem Commun (Camb) 2021; 57:6640-6643. [PMID: 34126627 DOI: 10.1039/d1cc01716k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Two closely related FeII complexes with 2,6-bis(1-ethyl-1H-1,2,3-triazol-4yl)pyridine and 2,6-bis(1,2,3-triazol-5-ylidene)pyridine ligands are presented to gain new insights into the photophysics of bis(tridentate) iron(ii) complexes. The [Fe(N^N^N)2]2+ pseudoisomer sensitizes singlet oxygen through a MC state with nanosecond lifetime after MLCT excitation, while the bis(tridentate) [Fe(C^N^C)2]2+ pseudoisomer possesses a similar 3MLCT lifetime as the tris(bidentate) [Fe(C^C)2(N^N)]2+ complexes with four mesoionic carbenes.
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Affiliation(s)
- Philipp Dierks
- Faculty of Science, Chemistry Department and Centre for Sustainable Systems Design, Paderborn University, 33098 Paderborn, Germany.
| | - Ayla Kruse
- Institute of Physics and Department of Life, Light and Matter, University of Rostock, 18051 Rostock, Germany
| | - Olga S Bokareva
- Institute of Physics and Department of Life, Light and Matter, University of Rostock, 18051 Rostock, Germany and Department of Physical Chemistry, Kazan Federal University, 420008 Kazan, Russia
| | - Mohammed J Al-Marri
- Institute of Physics and Department of Life, Light and Matter, University of Rostock, 18051 Rostock, Germany and College of Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Jens Kalmbach
- Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Marc Baltrun
- Faculty of Science, Chemistry Department and Centre for Sustainable Systems Design, Paderborn University, 33098 Paderborn, Germany.
| | - Adam Neuba
- Faculty of Science, Chemistry Department and Centre for Sustainable Systems Design, Paderborn University, 33098 Paderborn, Germany.
| | - Roland Schoch
- Faculty of Science, Chemistry Department and Centre for Sustainable Systems Design, Paderborn University, 33098 Paderborn, Germany.
| | - Stephan Hohloch
- University of Innsbruck, Faculty of Chemistry and Pharmacy, Institute for General, Inorganic and Theoretical Chemistry, Innrain 80-82, Innsbruck 6020, Austria
| | - Katja Heinze
- Department of Chemistry, Johannes Gutenberg, University of Mainz, 55128 Mainz, Germany
| | - Michael Seitz
- Institute of Inorganic Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Oliver Kühn
- Institute of Physics and Department of Life, Light and Matter, University of Rostock, 18051 Rostock, Germany
| | - Stefan Lochbrunner
- Institute of Physics and Department of Life, Light and Matter, University of Rostock, 18051 Rostock, Germany
| | - Matthias Bauer
- Faculty of Science, Chemistry Department and Centre for Sustainable Systems Design, Paderborn University, 33098 Paderborn, Germany.
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7
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O'Reilly C, Blasco S, Parekh B, Collins H, Cooke G, Gunnlaugsson T, Byrne JP. Ruthenium-centred btp glycoclusters as inhibitors for Pseudomonas aeruginosa biofilm formation. RSC Adv 2021; 11:16318-16325. [PMID: 35479152 PMCID: PMC9030604 DOI: 10.1039/d0ra05107a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 04/26/2021] [Indexed: 11/21/2022] Open
Abstract
Carbohydrate-decorated clusters (glycoclusters) centred on a Ru(ii) ion were synthesised and tested for their activity against Pseudomonas aeruginosa biofilm formation. These clusters were designed by conjugating a range of carbohydrate motifs (galactose, glucose, mannose and lactose, as well as galactose with a triethylene glycol spacer) to a btp (2,6-bis(1,2,3-triazol-4-yl)pyridine) scaffold. This scaffold, which possesses a C2 symmetry, is an excellent ligand for d-metal ions, and thus the formation of the Ru(ii)-centred glycoclusters 7 and 8Gal was achieved from 5 and 6Gal; each possessing four deprotected carbohydrates. Glycocluster 8Gal, which has a flexible spacer between the btp and galactose moieties, showed significant inhibition of P. aeruginosa bacterial biofilm formation. By contrast, glycocluster 7, which lacked the flexible linker, didn't show significant antimicrobial effects and neither does the ligand 6Gal alone. These results are proposed to arise from carbohydrate–lectin interactions with LecA, which are possible for the flexible metal-centred multivalent glycocluster. Metal-centred glycoclusters present a structurally versatile class of antimicrobial agent for P. aeruginosa, of which this is, to the best of our knowledge, the first example. Ruthenium-centred glycoclusters based on carbohydrate-functionalised bis(triazolyl)pyridine ligands show Pseudomonas aeruginosa biofilm inhibition, with activity that is dependent on ligand structure.![]()
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Affiliation(s)
- Ciaran O'Reilly
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin Ireland.,School of Medicine, University College Dublin Belfield Dublin 4 Ireland
| | - Salvador Blasco
- School of Chemistry, Trinity Biomedical Sciences Institute, Trinity College Dublin Ireland
| | - Bina Parekh
- School of Medicine, University College Dublin Belfield Dublin 4 Ireland
| | - Helen Collins
- Department of Applied Science, Tallaght Campus, Technological University Dublin Ireland
| | - Gordon Cooke
- School of Medicine, University College Dublin Belfield Dublin 4 Ireland.,Department of Applied Science, Tallaght Campus, Technological University Dublin Ireland
| | | | - Joseph P Byrne
- School of Chemistry, National University of Ireland Galway University Road Galway Ireland
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8
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Kulmaczewski R, Bamiduro F, Shahid N, Cespedes O, Halcrow MA. Structural Transformations and Spin-Crossover in [FeL 2 ] 2+ Salts (L=4-{tert-Butylsulfanyl}-2,6-di{pyrazol-1-yl}pyridine): The Influence of Bulky Ligand Substituents. Chemistry 2021; 27:2082-2092. [PMID: 33073890 DOI: 10.1002/chem.202004072] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/16/2020] [Indexed: 11/06/2022]
Abstract
4-(tert-Butylsulfanyl)-2,6-di(pyrazol-1-yl)pyridine (L) was obtained in low yield from a one-pot reaction of 2,4,6-trifluoropyridine with 2-methylpropane-2-thiolate and sodium pyrazolate in a 1:1:2 ratio. The materials [FeL2 ][BF4 ]2 ⋅solv (1[BF4 ]2 ⋅solv) and [FeL2 ][ClO4 ]2 ⋅solv (1[ClO4 ]2 ⋅solv; solv=MeNO2 , MeCN or Me2 CO) exhibit a variety of structures and spin-state behaviors including thermal spin-crossover (SCO). Solvent loss on heating 1[BF4 ]2 ⋅x MeNO2 (x≈2.3) occurs in two steps. The intermediate phase exhibits hysteretic SCO around 250 K, involving a "reverse-SCO" step in its warming cycle at a scan rate of 5 K min-1 . The reverse-SCO is not observed in a slower 1 K min-1 measurement, however, confirming its kinetic nature. The final product [FeL2 ][BF4 ]2 ⋅0.75 MeNO2 was crystallographically characterized, and shows abrupt but incomplete SCO at 172 K which correlates with disorder of an L ligand. The asymmetric unit of 1[BF4 ]2 ⋅y Me2 CO (y≈1.6) contains five unique complex molecules, four of which undergo gradual SCO in at least two discrete steps. Low-spin 1[ClO4 ]2 ⋅0.5 Me2 CO is not isostructural with its BF4 - congener, and undergoes single-crystal-to-single-crystal solvent loss with a tripling of the crystallographic unit cell volume, while retaining the P 1 ‾ space group. Three other solvate salts undergo gradual thermal SCO. Two of these are isomorphous at room temperature, but transform to different low-temperature phases when the materials are fully low-spin.
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Affiliation(s)
- Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Faith Bamiduro
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Namrah Shahid
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, E. C. Stoner Building, Leeds, LS2 9JT, UK
| | - Malcolm A Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK
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9
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Colombo Dugoni G, Baggioli A, Famulari A, Sacchetti A, Martí-Rujas J, Mariani M, Macerata E, Mossini E, Mele A. Structural properties of the chelating agent 2,6-bis(1-(3-hydroxypropyl)-1,2,3-triazol-4-yl)pyridine: a combined XRD and DFT structural study. RSC Adv 2020; 10:19629-19635. [PMID: 35515445 PMCID: PMC9054079 DOI: 10.1039/d0ra04142d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 05/14/2020] [Indexed: 11/21/2022] Open
Abstract
The conformational isomerism of the chelating agent 2,6-bis(1-(3-hydroxypropyl)-1,2,3-triazol-4-yl)pyridine (PTD), exploited in fuel reprocessing in spent nuclear waste, has been studied by single crystal X-ray diffraction analysis in combination with an extensive DFT conformational investigation. In the solid-state, the elucidated crystal structure (i.e., not yet published) shows that by thermal treatment (DSC) no other phases are observed upon crystallization from the melt, indicating that the conformation observed by X-ray data is rather stable. Mapping of intermolecular and intramolecular noncovalent interactions has been used to elucidate the unusual arrangement of the asymmetric unit. Considerations relating to the stability of different conformational isomers in aqueous and non-aqueous solutions are also presented. The accurate structural description reported here might open various research topics such as the potential of PTD to act as an outer sphere ligand in the formation of second sphere coordination complexes and their interconversion by mechanochemical means.
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Affiliation(s)
- Greta Colombo Dugoni
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
| | - Alberto Baggioli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
| | - Antonino Famulari
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
| | - Alessandro Sacchetti
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
| | - Javier Martí-Rujas
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia Via Pascoli 70/3 20133 Milano Italy
| | - Mario Mariani
- Department of Energy, Nuclear Engineering Division (CeSNEF), Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
| | - Elena Macerata
- Department of Energy, Nuclear Engineering Division (CeSNEF), Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
| | - Eros Mossini
- Department of Energy, Nuclear Engineering Division (CeSNEF), Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
| | - Andrea Mele
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano Piazza L. da Vinci 32 20133 Milan Italy
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10
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van Hilst QVC, Vasdev RAS, Preston D, Findlay JA, Scottwell SØ, Giles GI, Brooks HJL, Crowley JD. Synthesis, Characterisation and Antimicrobial Studies of some 2,6‐
bis
(1,2,3‐Triazol‐4‐yl)Pyridine Ruthenium(II) “Click” Complexes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900088] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Quinn V. C. van Hilst
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Roan A. S. Vasdev
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pharmacology and ToxicologyUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Dan Preston
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pharmacology and ToxicologyUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - James A. Findlay
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
| | - Synøve Ø. Scottwell
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
| | - Gregory I. Giles
- Department of Pharmacology and ToxicologyUniversity of Otago PO Box 56 Dunedin 9054 New Zealand
| | - Heather J. L. Brooks
- Department of Pathology Dunedin School of MedicineUniversity of Otago PO Box 56 Dunedin 9054
| | - James D. Crowley
- Department of ChemistryUniversity of Otago PO Box 56 Dunedin 9054
- MacDiarmid Institute for Advanced Materials and Nanotechnology New Zealand
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11
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McPherson JN, Hogue RW, Akogun FS, Bondì L, Luis ET, Price JR, Garden AL, Brooker S, Colbran SB. Predictable Substituent Control of Co III/II Redox Potential and Spin Crossover in Bis(dipyridylpyrrolide)cobalt Complexes. Inorg Chem 2019; 58:2218-2228. [PMID: 30672281 DOI: 10.1021/acs.inorgchem.8b03457] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A family of five easily prepared tridentate monoanionic 2,5-dipyridyl-3-(R1)-4-(R2)-pyrrolide anions (dppR1,R2)-, varying in the nature of the R1 and R2 substituents [R1, R2 = CN, Ph; CO2Et, CO2Et; CO2Me, 4-Py; CO2Me, Me; Me, Me], has been used to generate the analogous family of neutral [CoII(dppR1,R2)2] complexes, two of which are structurally characterized at both 100 and 298 K. Both the oxidation and spin states of these complexes can be switched in response to appropriate external stimuli. All complexes, except [CoII(dppMe,Me)2], exhibit gradual spin crossover (SCO) in the solid state, and SCO activity is observed for three complexes in CDCl3 solution. The cobalt(II) centers in the low spin (LS) complexes are Jahn-Teller tetragonally compressed along the pyrrolide-Co-pyrrolide axis. The complexes in their high spin (HS) states are more distorted than in the LS states, as is also usually the case for SCO active iron(II) complexes. The reversible CoIII/II redox potentials are predictably tuned by choice of substituents R1 and R2, from -0.95 (Me,Me) to -0.45 (CN,Ph) V vs Fc+/Fc, with a linear correlation observed between E1/2(CoIII/II) and the Swain-Lupton parameters of the pyrrolide substituents.
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Affiliation(s)
- James N McPherson
- School of Chemistry , The University of New South Wales , Kensington , NSW 2052 , Australia
| | - Ross W Hogue
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Folaranmi Sunday Akogun
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Luca Bondì
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Ena T Luis
- School of Chemistry , The University of New South Wales , Kensington , NSW 2052 , Australia
| | - Jason R Price
- ANSTO, Australian Synchrotron , Clayton , VIC Australia
| | - Anna L Garden
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Sally Brooker
- Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Stephen B Colbran
- School of Chemistry , The University of New South Wales , Kensington , NSW 2052 , Australia
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12
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Rozen E, Erlich Y, Reesbeck ME, Holland PL, Sukenik CN. Functionalized Self-Assembled Monolayers Bearing Diiminate Complexes Immobilized through Covalently Anchored Ligands. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:13472-13480. [PMID: 29048903 DOI: 10.1021/acs.langmuir.7b00984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The application of synthetic organic chemistry to the surface chemistry of monolayer arrays adds a novel dimension to the power of these systems for surface modification. This paper describes the elaboration of simple functionalized monolayers into dialdimine and dialdiminate ligands tethered to the monolayer surface. These ligands are then used to coordinate metal ions in an effort to form diiminate complexes with control over their environment and orientation. Ligand anchoring is best achieved through either thiol-ene photochemistry or azide-acetylene "click" chemistry. There is an influence of ligand bulk on some surface transformations, and in some cases reactions that have been reported to be effective on simple, homogeneous monolayer surfaces are not applicable to a more complex monolayer environment. The large excess of solution reagents relative to monolayer surface functionality adds another measure of difficulty to the control of interfacial reactions. In instances where the anchoring chain includes functional groups that can directly interact with metal ions, the metalation of ligand-bearing surfaces resulted in a higher metal ion content than would have been expected from binding only to the diimine ligands.
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Affiliation(s)
- Elitsour Rozen
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials , Bar-Ilan University , Ramat-Gan 52900 , Israel
| | - Yaron Erlich
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials , Bar-Ilan University , Ramat-Gan 52900 , Israel
| | - Megan E Reesbeck
- Department of Chemistry , Yale University , 225 Prospect Street , New Haven , Connecticut 06520 , United States
| | - Patrick L Holland
- Department of Chemistry , Yale University , 225 Prospect Street , New Haven , Connecticut 06520 , United States
| | - Chaim N Sukenik
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials , Bar-Ilan University , Ramat-Gan 52900 , Israel
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13
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Galadzhun I, Kulmaczewski R, Cespedes O, Yamada M, Yoshinari N, Konno T, Halcrow MA. 2,6-Bis(pyrazol-1-yl)pyridine-4-carboxylate Esters with Alkyl Chain Substituents and Their Iron(II) Complexes. Inorg Chem 2018; 57:13761-13771. [DOI: 10.1021/acs.inorgchem.8b02289] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Iurii Galadzhun
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Rafal Kulmaczewski
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Oscar Cespedes
- School of Physics and Astronomy, University of Leeds, E. C. Stoner Building, Leeds LS2 9JT, U.K
| | - Mihoko Yamada
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Nobuto Yoshinari
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Malcolm A. Halcrow
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
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14
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Ossola A, Macerata E, Mossini E, Giola M, Gullo MC, Arduini A, Casnati A, Mariani M. 2,6-Bis(1-alkyl-1H-1,2,3-triazol-4-yl)-pyridines: selective lipophilic chelating ligands for minor actinides. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6253-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Solvent Effects on the Spin-Transition in a Series of Fe(II) Dinuclear Triple Helicate Compounds. CRYSTALS 2018. [DOI: 10.3390/cryst8100376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This work explores the effect of lattice solvent on the observed solid-state spin-transition of a previously reported dinuclear Fe(II) triple helicate series 1–3 of the general form [FeII2L3](BF4)4(CH3CN)n, where L is the Schiff base condensation product of imidazole-4-carbaldehyde with 4,4-diaminodiphenylmethane (L1), 4,4′-diaminodiphenyl sulfide (L2) and 4,4′-diaminodiphenyl ether (L3) respectively, and 1 is the complex when L = L1, 2 when L = L2 and 3 when L = L3 (Craze, A.R.; Sciortino, N.F.; Bhadbhade, M.M.; Kepert, C.J.; Marjo, C.E.; Li, F. Investigation of the Spin Crossover Properties of Three Dinuclear Fe(II) Triple Helicates by Variation of the Steric Nature of the Ligand Type. Inorganics. 2017, 5 (4), 62). Desolvation of 1 and 2 during measurement resulted not only in a decrease in T1/2 and completeness of spin-crossover (SCO) but also a change in the number of steps in the spin-profile. Compounds 1 and 2 were observed to change from a two-step 70% complete transition when fully solvated, to a single-step half complete transition upon desolvation. The average T1/2 value of the two-steps in the solvated materials was equivalent to the single T1/2 of the desolvated sample. Upon solvent loss, the magnetic profile of 3 experienced a transformation from a gradual SCO or weak antiferromagnetic interaction to a single half-complete spin-transition. Variable temperature single-crystal structures are presented and the effects of solvent molecules are also explored crystallographically and via a Hirshfeld surface analysis. The spin-transition profiles of 1–3 may provide further insight into previous discrepancies in dinuclear triple helicate SCO research reported by the laboratories of Hannon and Gütlich on analogous systems (Tuna, F.; Lees, M. R.; Clarkson, G. J.; Hannon, M. J. Readily Prepared Metallo-Supramolecular Triple Helicates Designed to Exhibit Spin-Crossover Behaviour. Chem. Eur. J. 2004, 10, 5737–5750 and Garcia, Y.; Grunert, C. M.; Reiman, S.; van Campenhoudt, O.; Gütlich, P. The Two-Step Spin Conversion in a Supramolecular Triple Helicate Dinuclear Iron(II) Complex Studied by Mössbauer Spectroscopy. Eur. J. Inorg. Chem. 2006, 3333–3339).
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16
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Fletcher JT, Hanson MD, Christensen JA, Villa EM. Revisiting ring-degenerate rearrangements of 1-substituted-4-imino-1,2,3-triazoles. Beilstein J Org Chem 2018; 14:2098-2105. [PMID: 30202463 PMCID: PMC6122373 DOI: 10.3762/bjoc.14.184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 07/26/2018] [Indexed: 11/23/2022] Open
Abstract
The 1-substituted-4-imino-1,2,3-triazole motif is an established component of coordination compounds and bioactive molecules, but depending on the substituent identity, it can be inherently unstable due to Dimroth rearrangements. This study examined parameters governing the ring-degenerate rearrangement reactions of 1-substituted-4-imino-1,2,3-triazoles, expanding on trends first observed by L’abbé et al. The efficiency of condensation between 4-formyltriazole and amine reactants as well as the propensity of imine products towards rearrangement was each strongly influenced by the substituent identity. It was observed that unsymmetrical condensation reactions conducted at 70 °C produced up to four imine products via a dynamic equilibrium of condensation, rearrangement and hydrolysis steps. Kinetic studies utilizing 1-(4-nitrophenyl)-1H-1,2,3-triazole-4-carbaldehyde with varying amines showed rearrangement rates sensitive to both steric and electronic factors. Such measurements were facilitated by a high throughput colorimetric assay to directly monitor the generation of a 4-nitroaniline byproduct.
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Affiliation(s)
- James T Fletcher
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, NE 68178, U.S.A
| | - Matthew D Hanson
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, NE 68178, U.S.A
| | - Joseph A Christensen
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, NE 68178, U.S.A
| | - Eric M Villa
- Department of Chemistry, Creighton University, 2500 California Plaza, Omaha, NE 68178, U.S.A
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17
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Pryjomska-Ray I, Zornik D, Pätzel M, Krause KB, Grubert L, Braun-Cula B, Hecht S, Limberg C. Comparing Isomeric Tridentate Carbazole-Based Click Ligands: Metal Complexes and Redox Chemistry. Chemistry 2018; 24:5341-5349. [PMID: 29265510 DOI: 10.1002/chem.201704858] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 11/11/2022]
Abstract
Two novel bis(triazolyl)carbazole ligands Hbtc1 (3,6-di(tert-butyl)-1,8-bis[(1-(3,5-di(tert-butyl)phenyl)-1,2,3-triazol-4-yl)]-9H-carbazole) and Hbtc2 (3,6-di(tert-butyl)-1,8-bis[(4-(3,5-di(tert-butyl)phenyl)-1,2,3-triazol-1-yl)]-9H-carbazole), differing in the regiochemistry of triazole attachment, have been synthesized by Cu-catalyzed azide-alkyne cycloaddition, the so-called "click-reactions". Metalation with Ru, Zn, and Ni precursors led to the formation of M(btc)2 complexes (M=Ru, Zn, Ni), with two deprotonated ligands coordinating to the metal center in tridentate fashion, forming almost perfectly octahedral coordination spheres. The redox properties of M(btc)2 complexes have been investigated by cyclic voltammetry, UV/Vis spectroscopy, spectroelectrochemistry, and chemically. The CV of the ruthenium complexes revealed three quasi-reversible one-electron oxidation processes, one assigned as the RuII/III couple and two originating from ligand-based oxidations. The CVs of both Zn and Ni complexes contained only two oxidation waves corresponding to the oxidation of the two ligands. The oxidation potentials of complexes derived from Hbtc1 ligands were found to be 300-400 mV lower than those of the corresponding complexes derived from Hbtc2, reflecting the significant difference in donation through the N(2) or N(3) atom of the triazole moiety.
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Affiliation(s)
- Iweta Pryjomska-Ray
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Denise Zornik
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Michael Pätzel
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Konstantin B Krause
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Lutz Grubert
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Beatrice Braun-Cula
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Stefan Hecht
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Christian Limberg
- Department of Chemistry and IRIS Adlershof, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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18
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Hosseinnejad T, Ebrahimpour-Malmir F, Fattahi B. Computational investigations of click-derived 1,2,3-triazoles as keystone ligands for complexation with transition metals: a review. RSC Adv 2018; 8:12232-12259. [PMID: 35539398 PMCID: PMC9079615 DOI: 10.1039/c8ra00283e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 01/04/2019] [Accepted: 03/02/2018] [Indexed: 01/05/2023] Open
Abstract
In recent years, metal complexes of organo 1,2,3-triazole click-derived ligands have attracted significant attention as catalysts in many chemical transformations and also as biological and pharmaceutical active agents. Regarding the important applications of these metal-organo 1,2,3-triazole-based complexes, in this review, we focused on the recently reported investigations of the structural, electronic, and spectroscopic aspects of the complexation process in transition metal complexes of 1,2,3-triazole-based click ligands. In line with this, the coordination properties of these triazole-based click ligands with transition metals were studied via several quantum chemistry calculations. Moreover, considering the complexation process, we have presented comparative discussions between the computational results and the available experimental data.
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Affiliation(s)
- Tayebeh Hosseinnejad
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University Vanak Tehran Iran +98-21-8804-1344 +98-9124775800
| | - Fatemeh Ebrahimpour-Malmir
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University Vanak Tehran Iran +98-21-8804-1344 +98-9124775800
| | - Bahareh Fattahi
- Department of Chemistry, Faculty of Physics & Chemistry, Alzahra University Vanak Tehran Iran +98-21-8804-1344 +98-9124775800
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19
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McCarney EP, Hawes CS, Kitchen JA, Byrne K, Schmitt W, Gunnlaugsson T. A Lanthanide Luminescent Cation Exchange Material Derived from a Flexible Tricarboxylic Acid 2,6-Bis(1,2,3-triazol-4-yl)pyridine (btp) Tecton. Inorg Chem 2018; 57:3920-3930. [DOI: 10.1021/acs.inorgchem.8b00080] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Eoin P. McCarney
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland D02 R590
| | - Chris S. Hawes
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland D02 R590
| | | | - Kevin Byrne
- School of Chemistry and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland D02 XR15
| | - Wolfgang Schmitt
- School of Chemistry and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland D02 XR15
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, The University of Dublin, Dublin 2, Ireland D02 R590
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20
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Birkenfelder I, Gurke J, Grubert L, Hecht S, Schmidt BM. Click Chemistry Derived Pyridazines: Electron-Deficient Building Blocks with Defined Conformation and Packing Structure. Chem Asian J 2017; 12:3156-3161. [PMID: 29083098 DOI: 10.1002/asia.201701277] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 10/19/2017] [Indexed: 01/21/2023]
Abstract
A series of 3,6-bis(4-triazolyl)pyridazines equipped with terminal phenyl substituents with varying degree of fluorination were synthesized by using the facile copper-catalyzed azide-alkyne cycloaddition and their structures were thoroughly investigated in the gas phase, in solution, and in the solid state by employing DFT calculations, NMR spectroscopy, and single-crystal X-ray diffraction, respectively. On the molecular level, their structure is governed by the strong preference of the triazole-pyridazine linkages for the anti-conformation. The supramolecular organization of the molecules in the crystalline solid is controlled by π-stacking, C-H⋅⋅⋅π as well as C-F⋅⋅⋅H interactions. The latter can conveniently be tuned by the number and position of fluorine substituents in the terminal phenyl units, giving rise to either herringbone-like, 1D or 2D lamellar packing. Electrochemistry and optical spectroscopy of all compounds suggest that they might find use as electron-transporting/hole-blocking materials in organic electronics.
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Affiliation(s)
- Irén Birkenfelder
- Department of Chemistry and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Johannes Gurke
- Department of Chemistry and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Lutz Grubert
- Department of Chemistry and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Stefan Hecht
- Department of Chemistry and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
| | - Bernd M Schmidt
- Department of Chemistry and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany
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21
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Wegeberg C, Donald WA, McKenzie CJ. Noncovalent Halogen Bonding as a Mechanism for Gas-Phase Clustering. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:2209-2216. [PMID: 28717931 DOI: 10.1007/s13361-017-1722-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 05/16/2017] [Accepted: 05/17/2017] [Indexed: 06/07/2023]
Abstract
Gas-phase clustering of nonionizable iodylbenzene (PhIO2) is attributed to supramolecular halogen bonding. Electrospray ionization results in the formation of ions of proton-charged and preferably sodium-charged clusters assignable to [H(PhIO2) n ]+, n = 1-7; [Na(PhIO2) n ]+, n = 1-6; [Na2(PhIO2) n ]2+, n = 7-20; [HNa(PhIO2) n ]2+, n = 6-19; [HNa2(PhIO2) n ]3+, n = 15-30; and [Na3(PhIO2) n ]3+, n = 14-30. The largest cluster detected has a supramolecular mass of 7147 Da. Electronic structure calculations using the M06-2X functional with the 6-311++G(d,p) basis set for C, H, and O, and LANL2DZ basis set for I and Na predict 298 K binding enthalpies for the protonated and sodiated iodylbenzene dimers and trimers are greater than 180 kJ/mol. This is exceptionally high in comparison with other protonated and sodiated clusters with well-established binding enthalpies. Strongly halogen-bonded motifs found in the crystalline phases of PhIO2 and its derivatives serve as models for the structures of larger gas-phase clusters, and calculations on simple model gas-phase dimer and trimer clusters result in similar motifs. This is the first account of halogen bonding playing an extensive role in gas-phase associations. Graphical Abstract ᅟ.
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Affiliation(s)
- Christina Wegeberg
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5320, Odense M, Denmark
| | - William A Donald
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Christine J McKenzie
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5320, Odense M, Denmark.
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22
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Suntrup L, Klenk S, Klein J, Sobottka S, Sarkar B. Gauging Donor/Acceptor Properties and Redox Stability of Chelating Click-Derived Triazoles and Triazolylidenes: A Case Study with Rhenium(I) Complexes. Inorg Chem 2017; 56:5771-5783. [DOI: 10.1021/acs.inorgchem.7b00393] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Lisa Suntrup
- Institut für Chemie und Biochemie,
Anorganische Chemie, Freie Universität Berlin, Fabeckstraße
34−36, D-14195 Berlin, Germany
| | - Sinja Klenk
- Institut für Chemie und Biochemie,
Anorganische Chemie, Freie Universität Berlin, Fabeckstraße
34−36, D-14195 Berlin, Germany
| | - Johannes Klein
- Institut für Chemie und Biochemie,
Anorganische Chemie, Freie Universität Berlin, Fabeckstraße
34−36, D-14195 Berlin, Germany
| | - Sebastian Sobottka
- Institut für Chemie und Biochemie,
Anorganische Chemie, Freie Universität Berlin, Fabeckstraße
34−36, D-14195 Berlin, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie,
Anorganische Chemie, Freie Universität Berlin, Fabeckstraße
34−36, D-14195 Berlin, Germany
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23
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Schweinfurth D, Hettmanczyk L, Suntrup L, Sarkar B. Metal Complexes of Click-Derived Triazoles and Mesoionic Carbenes: Electron Transfer, Photochemistry, Magnetic Bistability, and Catalysis. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700030] [Citation(s) in RCA: 131] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- David Schweinfurth
- Institut für Chemie und Biochemie, Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
| | - Lara Hettmanczyk
- Institut für Chemie und Biochemie, Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
| | - Lisa Suntrup
- Institut für Chemie und Biochemie, Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
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24
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Copper(II) complexes of chiral 1,2,3-triazole biheterocyclic ‘click’ ligands equipped in Cinchona alkaloid moiety. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.09.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Manck S, Röger M, van der Meer M, Sarkar B. Heterotri‐ and Heteropentanuclear Copper(I)–Ferrocenyl Complexes Assembled through a “Click” Strategy: A Structural, Electrochemical, and Spectroelectrochemical Investigation. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sinja Manck
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
| | - Marc Röger
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
| | - Margarethe van der Meer
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstraße 34‐3614195BerlinGermany
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26
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Lauko J, Kouwer PHJ, Rowan AE. 1
H
‐1,2,3‐Triazole: From Structure to Function and Catalysis. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2770] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ján Lauko
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Paul H. J. Kouwer
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Alan E. Rowan
- Institute for Molecules and MaterialsRadboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
- Australian Institute for Bioengineering and Nanotechnology (AIBN)The University of Queensland Brisbane QLD 4072 Australia
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27
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Zhong H, Liu C, Zhou H, Wang Y, Wang R. Prefunctionalized Porous Organic Polymers: Effective Supports of Surface Palladium Nanoparticles for the Enhancement of Catalytic Performances in Dehalogenation. Chemistry 2016; 22:12533-41. [DOI: 10.1002/chem.201601956] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Hong Zhong
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Caiping Liu
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Hanghui Zhou
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Yangxin Wang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Ruihu Wang
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
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28
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Byrne JP, Blasco S, Aletti AB, Hessman G, Gunnlaugsson T. Formation of Self-Templated 2,6-Bis(1,2,3-triazol-4-yl)pyridine [2]Catenanes by Triazolyl Hydrogen Bonding: Selective Anion Hosts for Phosphate. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Joseph P. Byrne
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
- Departement für Chemie und Biochemie; Universität Bern; Freiestrasse 3 3012 Bern Switzerland
| | - Salvador Blasco
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Anna B. Aletti
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Gary Hessman
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
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29
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Byrne JP, Blasco S, Aletti AB, Hessman G, Gunnlaugsson T. Formation of Self-Templated 2,6-Bis(1,2,3-triazol-4-yl)pyridine [2]Catenanes by Triazolyl Hydrogen Bonding: Selective Anion Hosts for Phosphate. Angew Chem Int Ed Engl 2016; 55:8938-43. [DOI: 10.1002/anie.201603213] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Joseph P. Byrne
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
- Departement für Chemie und Biochemie; Universität Bern; Freiestrasse 3 3012 Bern Switzerland
| | - Salvador Blasco
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Anna B. Aletti
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Gary Hessman
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI); Trinity College Dublin; The University of Dublin; Dublin 2 Ireland
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30
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Schweinfurth D, Demeshko S, Sommer MG, Dechert S, Meyer F, Sarkar B. FeII and CoII Complexes with Click-Derived Tripodal Ligands: Influence of the Peripheral Substituents on Geometric Structures and Magnetic Properties. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501385] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- David Schweinfurth
- Institut für Chemie und Biochemie; Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie; Anorganische Chemie; Georg-August-Universität Göttingen; Tammannstraße 4 37077 Göttingen Germany
| | - Michael G. Sommer
- Institut für Chemie und Biochemie; Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
| | - Sebastian Dechert
- Institut für Anorganische Chemie; Anorganische Chemie; Georg-August-Universität Göttingen; Tammannstraße 4 37077 Göttingen Germany
| | - Franc Meyer
- Institut für Anorganische Chemie; Anorganische Chemie; Georg-August-Universität Göttingen; Tammannstraße 4 37077 Göttingen Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie; Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
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31
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McCarney EP, Hawes CS, Blasco S, Gunnlaugsson T. Synthesis and structural studies of 1,4-di(2-pyridyl)-1,2,3-triazole dpt and its transition metal complexes; a versatile and subtly unsymmetric ligand. Dalton Trans 2016; 45:10209-21. [DOI: 10.1039/c6dt01416j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Structural analysis of the 1,4-di(2-pyridyl)-1,2,3-triazole ligand and its transition metal complexes of varying lability demonstrate the coordination chemistry selectivity of this subtly unsymmetric ligand.
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Affiliation(s)
- Eoin P. McCarney
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Chris S. Hawes
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Salvador Blasco
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
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32
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Xu L, Zhang A, Lu Y, Yang H, Liu Z. A phenanthroline-derived ligand and its complexation with Pd(ii): from ligand design, synthesis and Pd(ii) complexes structures to its application. RSC Adv 2016. [DOI: 10.1039/c6ra20484h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper reports the first example of a phenanthroline-derived bis-opened-triazine ligand showing high selectivity and fast extraction rate toward Pd(ii).
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Affiliation(s)
- Lei Xu
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Anyun Zhang
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yanchao Lu
- College of Materials Science and Engineering
- China Jiliang University
- Hangzhou 310018
- China
| | - Hua Yang
- College of Materials Science and Engineering
- China Jiliang University
- Hangzhou 310018
- China
| | - Ziyang Liu
- College of Materials Science and Engineering
- China Jiliang University
- Hangzhou 310018
- China
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33
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van der Meer M, Rechkemmer Y, Breitgoff FD, Dechert S, Marx R, Dörfel M, Neugebauer P, van Slageren J, Sarkar B. Probing bistability in FeIIand CoIIcomplexes with an unsymmetrically substituted quinonoid ligand. Dalton Trans 2016; 45:8394-403. [DOI: 10.1039/c6dt00757k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A quinone ligand with a [O,O,O,N] donor set is presented. Its FeIIcomplex displays bistability as a function of temperature, pressure and photoexcitation and its CoIIcomplex displays a redox-induced spin-state change.
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Affiliation(s)
| | - Yvonne Rechkemmer
- Institut für Physikalische Chemie
- Universität Stuttgart
- D-70569 Stuttgart
- Germany
| | - Frauke D. Breitgoff
- Institut für Physikalische Chemie
- Universität Stuttgart
- D-70569 Stuttgart
- Germany
| | - Sebastian Dechert
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- D-37077 Göttingen
- Germany
| | - Raphael Marx
- Institut für Physikalische Chemie
- Universität Stuttgart
- D-70569 Stuttgart
- Germany
| | - María Dörfel
- Institut für Physikalische Chemie
- Universität Stuttgart
- D-70569 Stuttgart
- Germany
| | - Petr Neugebauer
- Institut für Physikalische Chemie
- Universität Stuttgart
- D-70569 Stuttgart
- Germany
| | - Joris van Slageren
- Institut für Physikalische Chemie
- Universität Stuttgart
- D-70569 Stuttgart
- Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- D-14195 Berlin
- Germany
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34
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Liu Y, Huo JZ, Liu YY, Su X, Guo JH, Ding B, Wang XG, Xia J. Synthesis, Structure, and Magnetic Characterization of a Series of Iron(II) Coordination Frameworks with 2, 6-Bis(1, 2,4-triazole-4-yl)pyridine. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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Joshi K, Krishnamurty S, Singh I, Selvaraj K. A DFT based assay for tailor-made terpyridine ligand–metal complexation properties. MOLECULAR SIMULATION 2015. [DOI: 10.1080/08927022.2015.1067368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Byrne JP, Kitchen JA, Gunnlaugsson T. The btp [2,6-bis(1,2,3-triazol-4-yl)pyridine] binding motif: a new versatile terdentate ligand for supramolecular and coordination chemistry. Chem Soc Rev 2015; 43:5302-25. [PMID: 24871484 DOI: 10.1039/c4cs00120f] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Ligands containing the btp [2,6-bis(1,2,3-triazol-4-yl)pyridine] motif have appeared with increasing regularity over the last decade. This class of ligands, formed in a one pot ‘click’ reaction, has been studied for various purposes, such as for generating d and f metal coordination complexes and supramolecular self-assemblies, and in the formation of dendritic and polymeric networks, etc. This review article introduces btp as a novel and highly versatile terdentate building block with huge potential in inorganic supramolecular chemistry. We will focus on the coordination chemistry of btp ligands with a wide range of metals, and how it compares with other classical pyridyl and polypyridyl based ligands, and then present a selection of applications including use in catalysis, enzyme inhibition, photochemistry, molecular logic and materials, e.g. polymers, dendrimers and gels. The photovoltaic potential of triazolium derivatives of btp and its interactions with anions will also be discussed.
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Affiliation(s)
- Joseph P Byrne
- School of Chemistry and Trinity Biomedical Sciences Institute, Trinity College Dublin, University of Dublin, Pearse St, Dublin 2, Ireland.
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37
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Byrne JP, Kitchen JA, O’Brien JE, Peacock RD, Gunnlaugsson T. Lanthanide Directed Self-Assembly of Highly Luminescent Supramolecular “Peptide” Bundles from α-Amino Acid Functionalized 2,6-Bis(1,2,3-triazol-4-yl)pyridine (btp) Ligands. Inorg Chem 2015; 54:1426-39. [DOI: 10.1021/ic502384w] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Joseph P. Byrne
- School of Chemistry and Trinity Biomedical
Sciences Institute, Trinity College Dublin, University of Dublin, Pearse Street, Dublin 2, Ireland
| | - Jonathan A. Kitchen
- School of Chemistry and Trinity Biomedical
Sciences Institute, Trinity College Dublin, University of Dublin, Pearse Street, Dublin 2, Ireland
- Chemistry, Faculty of Natural & Environmental Sciences, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - John E. O’Brien
- School of Chemistry and Trinity Biomedical
Sciences Institute, Trinity College Dublin, University of Dublin, Pearse Street, Dublin 2, Ireland
| | - Robert D. Peacock
- School of Chemistry, University of Glasgow, Glasgow, G12 8QQ, Scotland, U.K
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical
Sciences Institute, Trinity College Dublin, University of Dublin, Pearse Street, Dublin 2, Ireland
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38
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McCarney EP, Byrne JP, Twamley B, Martínez-Calvo M, Ryan G, Möbius ME, Gunnlaugsson T. Self-assembly formation of a healable lanthanide luminescent supramolecular metallogel from 2,6-bis(1,2,3-triazol-4-yl)pyridine (btp) ligands. Chem Commun (Camb) 2015; 51:14123-6. [DOI: 10.1039/c5cc03139g] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The self-assembly and rheological studies of self-healing Eu(iii) luminescent metallogels from a btp (2,6-bis(1,2,3-triazol-4-yl)pyridine) ligand is described.
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Affiliation(s)
- Eoin P. McCarney
- School of Chemistry and Trinity Biomedical Science Institute
- University of Dublin
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Joseph P. Byrne
- School of Chemistry and Trinity Biomedical Science Institute
- University of Dublin
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Brendan Twamley
- School of Chemistry and Trinity Biomedical Science Institute
- University of Dublin
- Trinity College Dublin
- Dublin 2
- Ireland
| | | | - Gavin Ryan
- Sami Nasr Institute of Advanced Materials (SNIAM)
- School of Physics
- Trinity College Dublin
- University of Dublin
- Dublin 2
| | - Matthias E. Möbius
- Sami Nasr Institute of Advanced Materials (SNIAM)
- School of Physics
- Trinity College Dublin
- University of Dublin
- Dublin 2
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Science Institute
- University of Dublin
- Trinity College Dublin
- Dublin 2
- Ireland
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39
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You X, Wei Z. Two multidentate ligands utilizing triazolyl, pyridinyl and phenolate groups as donors for constructing dinuclear copper(II) and iron(III) complexes: Syntheses, structures, and electrochemistry. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.08.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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40
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del Rosso MG, Ciesielski A, Colella S, Harrowfield JM, Samorì P. Isothermal titration calorimetry study of a bistable supramolecular system: reversible complexation of cryptand[2.2.2] with potassium ions. Chemphyschem 2014; 15:2743-8. [PMID: 24986754 DOI: 10.1002/cphc.201402296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Indexed: 11/11/2022]
Abstract
Isothermal titration calorimetry (ITC) is used to investigate the thermodynamics of the complexation of potassium ions by 1,10-diaza-4,7,13,16,21,24-hexaoxabicyclo[8.8.8]hexacosane (cryptand[2.2.2]) in aqueous solution. By changing the pH of the solution it was possible to trigger the reversible complexation/decomplexation of the cryptand in consecutive in situ experiments and to assess for the first time the use of ITC to monitor the thermodynamics of a bistable system.
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Affiliation(s)
- Maria G del Rosso
- ISIS & icFRC, Université de Strasbourg & CNRS, 8 allée Gaspard Monge, 67000 Strasbourg (France)
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41
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Selmeczi K, Joly JP, Allali M, Yeguas V, Henry B, Ruiz-Lopez M. Evolution of the Coordination-Sphere Symmetry in Copper(II), Nickel(II), and Zinc(II) Complexes withN,N′-Double-Armed Diaza-Crown Ethers: Experimental and Theoretical Approaches. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402432] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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42
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Schweinfurth D, Demeshko S, Hohloch S, Steinmetz M, Brandenburg JG, Dechert S, Meyer F, Grimme S, Sarkar B. Spin Crossover in Fe(II) and Co(II) Complexes with the Same Click-Derived Tripodal Ligand. Inorg Chem 2014; 53:8203-12. [DOI: 10.1021/ic500264k] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- David Schweinfurth
- Institut für Chemie und Biochemie, Anorganische
Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077, Göttingen, Germany
| | - Stephan Hohloch
- Institut für Chemie und Biochemie, Anorganische
Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
| | - Marc Steinmetz
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße 4, D-53115, Bonn, Germany
| | - Jan Gerit Brandenburg
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße 4, D-53115, Bonn, Germany
| | - Sebastian Dechert
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077, Göttingen, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, D-37077, Göttingen, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße 4, D-53115, Bonn, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische
Chemie, Fabeckstraße 34-36, D-14195, Berlin, Germany
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43
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A multidentate ligand based on two triazole groups from “click chemistry” and its copper(II) and iron(II) complexes: synthesis, structure, and electrochemistry. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9849-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Hohloch S, Hettmanczyk L, Sarkar B. Introducing Potential Hemilability into “Click” Triazoles and Triazolylidenes: Synthesis and Characterization of d6-Metal Complexes and Oxidation Catalysis. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402178] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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45
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Weisser F, Hohloch S, Plebst S, Schweinfurth D, Sarkar B. Ruthenium complexes of tripodal ligands with pyridine and triazole arms: subtle tuning of thermal, electrochemical, and photochemical reactivity. Chemistry 2014; 20:781-93. [PMID: 24403171 DOI: 10.1002/chem.201303640] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 10/30/2013] [Indexed: 01/02/2023]
Abstract
Electrochemical and photochemical bond-activation steps are important for a variety of chemical transformations. We present here four new complexes, [Ru(L(n) )(dmso)(Cl)]PF6 (1-4), where L(n) is a tripodal amine ligand with 4-n pyridylmethyl arms and n-1 triazolylmethyl arms. Structural comparisons show that the triazoles bind closer to the Ru center than the pyridines. For L(2) , two isomers (with respect to the position of the triazole arm, equatorial or axial), trans-2sym and trans-2un , could be separated and compared. The increase in the number of the triazole arms in the ligand has almost no effect on the Ru(II) /Ru(III) oxidation potentials, but it increases the stability of the RuSdmso bond. Hence, the oxidation waves become more reversible from trans-1 to trans-4, and whereas the dmso ligand readily dissociates from trans-1 upon heating or irradiation with UV light, the RuS bond of trans-4 remains perfectly stable under the same conditions. The strength of the RuS bond is not only influenced by the number of triazole arms but also by their position, as evidenced by the difference in redox behavior and reactivity of the two isomers, trans-2sym and trans-2un . A mechanistic picture for the electrochemical, thermal, and photochemical bond activation is discussed with data from NMR spectroscopy, cyclic voltammetry, and spectroelectrochemistry.
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Affiliation(s)
- Fritz Weisser
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195 Berlin (Germany), Fax: (+49) 30-838-53310
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46
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Byrne JP, Kitchen JA, Kotova O, Leigh V, Bell AP, Boland JJ, Albrecht M, Gunnlaugsson T. Synthesis, structural, photophysical and electrochemical studies of various d-metal complexes of btp [2,6-bis(1,2,3-triazol-4-yl)pyridine] ligands that give rise to the formation of metallo-supramolecular gels. Dalton Trans 2014; 43:196-209. [DOI: 10.1039/c3dt52309h] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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47
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Hohloch S, Schweinfurth D, Sommer MG, Weisser F, Deibel N, Ehret F, Sarkar B. The redox series [Ru(bpy)2(L)]n, n = +3, +2, +1, 0, with L = bipyridine, “click” derived pyridyl-triazole or bis-triazole: a combined structural, electrochemical, spectroelectrochemical and DFT investigation. Dalton Trans 2014; 43:4437-50. [DOI: 10.1039/c3dt52898g] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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48
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Schulze B, Schubert US. Beyond click chemistry – supramolecular interactions of 1,2,3-triazoles. Chem Soc Rev 2014; 43:2522-71. [DOI: 10.1039/c3cs60386e] [Citation(s) in RCA: 583] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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49
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Mendoza-Espinosa D, Negrón-Silva GE, Ángeles-Beltrán D, Álvarez-Hernández A, Suárez-Castillo OR, Santillán R. Copper(ii) complexes supported by click generated mixed NN, NO, and NS 1,2,3-triazole based ligands and their catalytic activity in azide–alkyne cycloaddition. Dalton Trans 2014; 43:7069-77. [DOI: 10.1039/c4dt00323c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Four copper complexes supported by mixed NO, NN and NS-1,2,3-triazoles are reported. Their catalytic activity in the CuAAC process is demonstrated.
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Affiliation(s)
- Daniel Mendoza-Espinosa
- Departamento de Ciencias Básicas
- Universidad Autónoma Metropolitana-Azcapotzalco
- México D.F. 02200, México
| | | | - Deyanira Ángeles-Beltrán
- Departamento de Ciencias Básicas
- Universidad Autónoma Metropolitana-Azcapotzalco
- México D.F. 02200, México
| | | | | | - Rosa Santillán
- Departamento de Química
- CINVESTAV-IPN
- México D.F. 07000, México
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50
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Saccone M, Terraneo G, Pilati T, Cavallo G, Priimagi A, Metrangolo P, Resnati G. Azobenzene-based difunctional halogen-bond donor: towards the engineering of photoresponsive co-crystals. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2013; 70:149-56. [DOI: 10.1107/s205252061302622x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 09/23/2013] [Indexed: 11/10/2022]
Abstract
Halogen bonding is emerging as a powerful non-covalent interaction in the context of supramolecular photoresponsive materials design, particularly due to its high directionality. In order to obtain further insight into the solid-state features of halogen-bonded photoactive molecules, three halogen-bonded co-crystals containing an azobenzene-based difunctional halogen-bond donor molecule, (E)-bis(4-iodo-2,3,5,6-tetrafluorophenyl)diazene, C12F8I2N2, have been synthesized and structurally characterized by single-crystal X-ray diffraction. The crystal structure of the non-iodinated homologue (E)-bis(2,3,5,6-tetrafluorophenyl)diazene, C12H2F8N2, is also reported. It is demonstrated that the studied halogen-bond donor molecule is a reliable tecton for assembling halogen-bonded co-crystals with potential photoresponsive behaviour. The azo group is not involved in any specific intermolecular interactions in any of the co-crystals studied, which is an interesting feature in the context of enhanced photoisomerization behaviour and photoactive properties of the material systems.
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