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Tołoczko A, Kaźmierczak M, Książek M, Weselski M, Siczek M, Kusz J, Bronisz R. Expanding the dimensionality of bis(tetrazolyl)alkane-based Fe(II) coordination polymers by the application of dinitrile coligands. Dalton Trans 2024; 53:7163-7174. [PMID: 38573306 DOI: 10.1039/d4dt00462k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Reactions between 1,2-di(tetrazol-2-yl)ethane (ebtz), 1,6-di(tetrazol-2-yl)hexane (hbtz) or 1,1'-di(tetrazol-1-yl)methane (1ditz) and Fe(BF4)2 in the presence of adiponitrile (ADN), glutaronitrile (GLN) or suberonitrile (SUN) resulted in the formation of coordination polymers [Fe(μ-ebtz)2(μ-ADN)](BF4)2 (1), [Fe(μ-hbtz)2(μ-ADN)](BF4)2 (2), [Fe(μ-1ditz)2(GLN)2](BF4)2·GLN (3) and [Fe(μ-1ditz)2(μ-SUN)](BF4)2·SUN (4). It was established that the application of dinitriles allows an increase in the dimensionality of the ebtz and hbtz based systems while maintaining the structure of the polymeric units characteristic of previously studied mononitrile based analogues. In 3 and 4, regardless of the type of dinitrile coligand, the motif of 2D polymeric layers constituted by 1ditz molecules remains preserved. However, the dimensionality of 1ditz based networks is governed by the coordination modes of dinitriles. 3, based on a shorter molecule of glutaronitrile, crystallizes as a two-dimensional (2D) coordination polymer. In this compound, dinitriles coordinate monodentately or play the role of guest molecules. The substitution of glutaronitrile with suberonitrile enables the bridging of neighboring polymeric layers, resulting in a 3D network. The intentional selection of bis(tetrazoles) and dinitriles as building blocks has led, as expected, to obtaining systems with the structure of the first coordination sphere consisting of four tetrazole rings and two axially coordinated nitrile molecules. It created the conditions required for the occurrence of thermally induced spin crossover. Magnetic measurements and single crystal X-ray diffraction studies were used for the characterization of the spin crossover properties of 1-4.
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Affiliation(s)
- Aleksandra Tołoczko
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
| | - Marcin Kaźmierczak
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
| | - Maria Książek
- Institute of Physics, University of Silesia, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - Marek Weselski
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
| | - Miłosz Siczek
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
| | - Joachim Kusz
- Institute of Physics, University of Silesia, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
| | - Robert Bronisz
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.
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Ebrahimi B, Notash B, Matar T, Dinnebier R. In Situ Conversion of Ligand to a Coordination Polymer via a Core@Shell Crystal: A Multi-Step Phase-Dependent Structural Transformation. Inorg Chem 2024; 63:983-999. [PMID: 38157417 DOI: 10.1021/acs.inorgchem.3c03044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Two pseudopolymorphic 1D coordination polymers of the formulas [Cd(3,3'-pytz)(CH3OH)2(ClO4)2]n (1) and [Cd(3,3'-pytz)(CH3CN)2(ClO4)2]n (2) have been prepared using the electron-deficient 3,6-bis(pyridin-3-yl)-1,2,4,5-tetrazine (3,3'-pytz) ligand and cadmium perchlorate in the chloroform/methanol and chloroform/acetonitrile solvent system, respectively. It was observed that compounds 1 and 2 experienced one-step (CPreagent → CPproduct) single-crystal-to-powder structural transformation to the pure water-coordinated compound [Cd(3,3'-pytz)(H2O)2(ClO4)2]n (3) by absorbing water vapor from air (solid-gas phase transformation). Interestingly, compounds 1, 2, and 3 undergo a different transformation path and show an in situ unique three-step (CPreagent → CPproduct → Ligandintermediate → CPproduct) single-crystal-to-single-crystal (SCSC) structural transformation process through soaking in deionized water (solid-liquid phase transformation). In this fascinating transformation, we report for the first time the direct conversion of a ligand into a coordination polymer by a rare core-shell pathway in a solid-liquid phase transformation. In this process, we obtained compound {[Cd(3,3'-pytz)(H2O)4](3,3'-pytz)2(ClO4)2(H2O)6}n (4) (single-crystal = S, crystal = C, or microcrystal = P) as mixed compounds of core-shell L@4C and 4S or core-shell L@4P and 4P for compounds (1 and 2) and 3, respectively.
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Affiliation(s)
- Bahare Ebrahimi
- Department of Inorganic Chemistry, Shahid Beheshti University, 1983969411 Tehran, Iran
| | - Behrouz Notash
- Department of Inorganic Chemistry, Shahid Beheshti University, 1983969411 Tehran, Iran
| | - Toka Matar
- Max Planck Institute for Solid State Research, Heisenberg strasse 1, D-70569 Stuttgart, Germany
| | - Robert Dinnebier
- Max Planck Institute for Solid State Research, Heisenberg strasse 1, D-70569 Stuttgart, Germany
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3
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Rupf SM, Moshtaha AL, Malischewski M. A decacationic ferrocene-based metallostar. Chem Sci 2023; 14:1132-1137. [PMID: 36756324 PMCID: PMC9891387 DOI: 10.1039/d2sc06151a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/27/2022] [Indexed: 12/29/2022] Open
Abstract
Decacationic metallostars have been prepared by the reaction of permercurated ferrocene FeC10(HgO2CCF3)10 with superacidic (C5F5NH)(SbF6) (pK a = -11 estimated in H2O) in multigram scale. In the resulting compound, [FeC10Hg10(NC5F5) n ][SbF6]10, the labile pentafluoropyridine ligands are readily displaced by acetonitrile (MeCN) or tetrahydrothiophene (THT). In the X-ray structure of [FeC10Hg10(THT)10][SbF6]10·24 MeCN no cation-anion contacts between mercury and fluorine were observed. Moreover, cyclic voltammetry measurements of [FeC10(Hg(MeCN))10]10+ and [FeC10(Hg(THT))10]10+ revealed a (quasi)reversible one-electron oxidation of Fe(ii) to Fe(iii). From the reaction of [FeC10(Hg(MeCN))10]10+ with MoF6 as oxidant the ferrocenium cation [FeC10(Hg(MeCN))10]11+ was obtained and characterized via single crystal XRD. These electrophilic metallostars are promising potential building blocks for the synthesis of dendritic architectures containing a robust, tenfold functionalized ferrocene core.
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Mono- and Binuclear Copper(II) and Nickel(II) Complexes with the 3,6-Bis(picolylamino)-1,2,4,5-Tetrazine Ligand. Molecules 2021; 26:molecules26082122. [PMID: 33917122 PMCID: PMC8067877 DOI: 10.3390/molecules26082122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 11/30/2022] Open
Abstract
Four new compounds of formulas [Cu(hfac)2(L)] (1), [Ni(hfac)2(L)] (2), [{Cu(hfac)2}2(µ-L)]·2CH3OH (3) and [{Ni(hfac)2}2(µ-L)]·2CH3CN (4) [Hhfac = hexafluoroacetylacetone and L = 3,6-bis(picolylamino)-1,2,4,5-tetrazine] have been prepared and their structures determined by X-ray diffraction on single crystals. Compounds 1 and 2 are isostructural mononuclear complexes where the metal ions [copper(II) (1) and nickel(II) (2)] are six-coordinated in distorted octahedral MN2O4 surroundings which are built by two bidentate hfac ligands plus another bidentate L molecule. This last ligand coordinates to the metal ions through the nitrogen atoms of the picolylamine fragment. Compounds 3 and 4 are centrosymmetric homodinuclear compounds where two bidentate hfac units are the bidentate capping ligands at each metal center and a bis-bidentate L molecule acts as a bridge. The values of the intramolecular metal···metal separation are 7.97 (3) and 7.82 Å (4). Static (dc) magnetic susceptibility measurements were carried out for polycrystalline samples 1–4 in the temperature range 1.9–300 K. Curie law behaviors were observed for 1 and 2, the downturn of χMT in the low temperature region for 2 being due to the zero-field splitting of the nickel(II) ion. Very weak [J = −0.247(2) cm−1] and relatively weak intramolecular antiferromagnetic interactions [J = −4.86(2) cm−1] occurred in 3 and 4, respectively (the spin Hamiltonian being defined as H = −JS1·S2). Simple symmetry considerations about the overlap between the magnetic orbitals across the extended bis-bidentate L bridge in 3 and 4 account for their magnetic properties.
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Palo A, La Ganga G, Nastasi F, Guelfi M, Bortoluzzi M, Pampaloni G, Puntoriero F, Campagna S, Marchetti F. Unsymmetrical Dinuclear Ru
II
Complexes with Bridging Polydentate Nitrogen Ligands as Potential Water Oxidation Catalysts. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202000931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alice Palo
- Università di Pisa Dipartimento di Chimica e Chimica Industriale Via G. Moruzzi 13 56124 Pisa Italy
| | - Giuseppina La Ganga
- Università di Messina Dipartimento di Scienze Chimiche Biologiche Farmaceutiche ed Ambientali
- Interuniversitary Research Center for Artificial Photosynthesis (SOLAR-CHEM) Via F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Francesco Nastasi
- Università di Messina Dipartimento di Scienze Chimiche Biologiche Farmaceutiche ed Ambientali
- Interuniversitary Research Center for Artificial Photosynthesis (SOLAR-CHEM) Via F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Massimo Guelfi
- Università di Pisa Dipartimento di Chimica e Chimica Industriale Via G. Moruzzi 13 56124 Pisa Italy
| | - Marco Bortoluzzi
- Ca' Foscari Università di Venezia Dipartimento di Scienze Molecolari e Nanosistemi Via Torino 155 30170 Mestre (VE) Italy
| | - Guido Pampaloni
- Università di Pisa Dipartimento di Chimica e Chimica Industriale Via G. Moruzzi 13 56124 Pisa Italy
| | - Fausto Puntoriero
- Università di Messina Dipartimento di Scienze Chimiche Biologiche Farmaceutiche ed Ambientali
- Interuniversitary Research Center for Artificial Photosynthesis (SOLAR-CHEM) Via F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Sebastiano Campagna
- Università di Messina Dipartimento di Scienze Chimiche Biologiche Farmaceutiche ed Ambientali
- Interuniversitary Research Center for Artificial Photosynthesis (SOLAR-CHEM) Via F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Fabio Marchetti
- Università di Pisa Dipartimento di Chimica e Chimica Industriale Via G. Moruzzi 13 56124 Pisa Italy
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Mavragani N, Kitos AA, Brusso JL, Murugesu M. Enhancing Magnetic Communication between Metal Centres: The Role of s-Tetrazine Based Radicals as Ligands. Chemistry 2021; 27:5091-5106. [PMID: 33079452 DOI: 10.1002/chem.202004215] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/19/2020] [Indexed: 12/31/2022]
Abstract
Although 1,2,4,5-tetrazines or s-tetrazines have been known in the literature for more than a century, their coordination chemistry has become increasingly popular in recent years due to their unique redox activity, multiple binding sites and their various applications. The electron-poor character of the ring and stabilization of the radical anion through all four nitrogen atoms in their metal complexes provide new aspects in molecular magnetism towards the synthesis of new high performing Single Molecule Magnets (SMMs). The scope of this review is to examine the role of s-tetrazine radical ligands in transition metal and lanthanide based SMMs and provide a critical overview of the progress thus far in this field. As well, general synthetic routes and new insights for the preparation of s-tetrazines are discussed, along with their redox activity and applications in various fields. Concluding remarks along with the limitations and perspectives of these ligands are discussed.
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Affiliation(s)
- Niki Mavragani
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Alexandros A Kitos
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Jaclyn L Brusso
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
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Chowdhury B, Sinha S, Dutta R, Mondal S, Karmakar S, Ghosh P. Discriminative Behavior of a Donor-Acceptor-Donor Triad toward Cyanide and Fluoride: Insights into the Mechanism of Naphthalene Diimide Reduction by Cyanide and Fluoride. Inorg Chem 2020; 59:13371-13382. [PMID: 32870665 DOI: 10.1021/acs.inorgchem.0c01738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new molecular donor-acceptor-donor (D-A-D) triad, comprised of an electron deficient 1,4,5,8-naphthalene tetracarboxylic diimide (NDI) unit covalently connected to two flanking photosensitizers, i.e., a bis-heteroleptic Ru(II) complex of 1,10-phenanthroline and pyridine triazole hybrid ligand, is described. The single crystal X-ray structure of the perchlorate salt of the triad demonstrates that the electron deficient NDI unit can act as a host for anions via anion-π interaction. Detailed solution-state studies indicate that fluoride selectively interacts with the D-A-D triad to form a dianionic NDI, NDI2-, via a radical anion, NDI•-. On the contrary, cyanide reduces the NDI moiety to NDI•-, as confirmed by UV-vis, NMR, and EPR spectroscopy. Further, femtosecond transient absorption spectroscopic studies reveal a low luminescence quantum yield of the D-A-D triad attributable to the photoinduced electron transfer (PET) process from the photoactive Ru(II) center to the NDI unit. Interestingly, the triad displays "OFF-ON" luminescence behavior in the presence of fluoride by restoring the Ru(II) to phenanthroline/pyridine-triazole-based MLCT emission, whereas cyanide fails to show a similar property due to a different redox process operational in the latter. The reduction of NDI in the presence of fluoride and cyanide in different polar solvents indicates that involvement of such deprotonated solvents in the electron transfer mechanism may not be operative in our present system. Low-temperature kinetic studies support the formation of a charge transfer associative transient species, which likely allows overcoming the thermodynamically uphill barrier for the direct electron transfer mechanism.
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Affiliation(s)
- Bijit Chowdhury
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Sanghamitra Sinha
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Ranjan Dutta
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Sahidul Mondal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Shreetama Karmakar
- Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road Colaba, Mumbai 400005, India
| | - Pradyut Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Kolkata 700 032, India
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8
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Stetsiuk O, Abhervé A, Avarvari N. 1,2,4,5-Tetrazine based ligands and complexes. Dalton Trans 2020; 49:5759-5777. [PMID: 32239040 DOI: 10.1039/d0dt00827c] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One of the most intriguing nitrogen based aromatic heterocycles is 1,2,4,5-tetrazine or s-tetrazine (TTZ) thanks to its electron acceptor character and fluorescence properties and the possibilities of functionalization in the 3 and 6 positions allowing access to various ligands. In this review we focus on the two main families of TTZ based ligands, i.e. ditopic symmetric and monotopic non-symmetric, together with their metal complexes, with a special emphasis on their solid state structures and physical properties. After a description of the most representative complexes containing unsubstituted TTZ as a ligand, symmetric TTZ ligands and complexes derived thereof are discussed in the order: 3,6-bis(2-pyridyl)-tetrazine, 3,6-bis(3-pyridyl)-tetrazine, 3,6-bis(4-pyridyl)-tetrazine, 3,6-bis(2-pyrimidyl)-tetrazine, 3,6-bis(2-pyrazinyl)-tetrazine, 3,6-bis(monopicolylamine)-tetrazine, 3,6-bis(vanillin-hydrazinyl)-tetrazine and TTZ containing carboxylic acids. Remarkable results have been obtained in recent years for metal-organic frameworks and magnetic compounds in which magnetic coupling is enhanced when the tetrazine bridge is reduced to radical anions. Non-symmetric ligands, such as dipicolylamine-TTZ and monopicolylamine-TTZ, are comparatively more recent than the symmetric ones. They allow in principle the preparation of mononuclear complexes in a controlled manner, although binuclear complexes have been isolated as well. Moreover, in the monopicolylamine-TTZ-Cl ligand, deprotonation of the amine, thanks to the electron acceptor character of TTZ, afforded a negatively charged ligand equivalent of a guanidinate.
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Affiliation(s)
- Oleh Stetsiuk
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France.
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Khotchasanthong K, Jittirattanakun S, Chainok K. Crystal structure and Hirshfeld surface analysis of 3,6-bis-(pyrimidin-2-yl)-1,4-di-hydro-1,2,4,5-tetra-zine dihydrate. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2020; 76:473-476. [PMID: 32280486 PMCID: PMC7133042 DOI: 10.1107/s2056989020002765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 02/27/2020] [Indexed: 11/22/2022]
Abstract
In the crystal of the title compound, the packing is driven by O—H⋯O, O—H⋯N and N—H⋯N hydrogen-bond interactions along with π–π stacking interactions. In the title compound, C10H8N8·2H2O or H2bmtz·2H2O [bmtz = 3,6-bis(2′-pyrimidyl)-1,2,4,5-tetrazine], the asymmetric unit consists of one-half molecule of H2bmtz and one water molecule, the whole H2bmtz molecule being generated by a crystallographic twofold rotation axis passing through the middle point of the 1,4-dihydro-1,2,4,5-tetrazine moiety. In the crystal, N—H⋯O, N—H⋯N, O—H⋯O hydrogen bonds and aromatic π–π stacking interactions link the components into a three-dimensional supramolecular network. Hirshfeld surface analysis was used to further investigate the intermolecular interactions in the crystal structure.
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Affiliation(s)
- Kenika Khotchasanthong
- Multifunctional Crystalline Materials and Applications, Division of Chemistry, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani, 12121, Thailand
| | - Siripak Jittirattanakun
- Multifunctional Crystalline Materials and Applications, Division of Chemistry, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani, 12121, Thailand
| | - Kittipong Chainok
- Multifunctional Crystalline Materials and Applications, Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani, 12121, Thailand
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de Bettencourt-Dias A, Beeler RM, Zimmerman JR. Secondary-Sphere Chlorolanthanide(III) Complexes with a 1,3,5-Triazine-Based Ligand Supported by Anion-π, π-π, and Hydrogen-Bonding Interactions. Inorg Chem 2020; 59:151-160. [PMID: 31509390 DOI: 10.1021/acs.inorgchem.9b01804] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
2,4,6-Dipicolylamine-functionalized 1,3,5-triazine (dpat) was isolated. When reacted with LaCl3, compound [(LaCl6)(H3dpat)][H2O]2 (1) formed, which crystallized in the monoclinic P21/n space group with parameters a = 11.47 Å, b = 19.22 Å, c = 20.98 Å, V = 4652.02 Å, and β = 90.53°. When reacted with NdCl3, the complex [NdCl3(H2O)4(H3dpat)][Cl]3(MeOH)2 (2) crystallized in the monoclinic P21/n space group with unit cell parameters a = 20.05 Å, b = 12.81 Å, c = 20.64 Å, V = 5004.40 Å, and β = 110.20°. In both cases, the dpat ligand forms a bowl-shaped cavity that partially envelops the LnIII-containing central unit, which is anionic in 1 and neutral in 2. The formation of these outer-sphere complexes is supported by secondary interactions, including π-π stacking, hydrogen bonding, and anion-π between the chlorolanthanide(III) fragment and the electron-deficient 1,3,5-triazine ring. Evidence of protonation of the pyridine rings in dpat was substantiated through the isolation of [H2dpat][Cl]2 (3). This compound crystallized in the monoclinic C2/c space group with parameters a = 11.93 Å, b = 20.22 Å, c = 15.28 Å, V = 3664.97 Å, and β = 94.35°. Four pyridine rings are pairwise protonated in 3. dpat showed a moderate ability to extract LaIII from an aqueous to an organic phase, indicating its potential, through judicious manipulation of secondary-sphere interactions, as the starting point for efficient extractants for LnIII ions.
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Affiliation(s)
| | - Rose M Beeler
- Department of Chemistry , University of Nevada , Reno , Nevada 89557-0216 , United States
| | - Joshua R Zimmerman
- Department of Chemistry , University of Nevada , Reno , Nevada 89557-0216 , United States
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de Bettencourt-Dias A, Beeler RM, Zimmerman JR. Anion-π and H-Bonding Interactions Supporting Encapsulation of [Ln(NO3)6/5]3–/2– (Ln = Nd, Er) with a Triazine-Based Ligand. J Am Chem Soc 2019; 141:15102-15110. [DOI: 10.1021/jacs.9b05566] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Rose M. Beeler
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
| | - Joshua R. Zimmerman
- Department of Chemistry, University of Nevada, Reno, Nevada 89557-0216, United States
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12
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Dipicolylamino-methoxy-1,2,4,5-tetrazine ligand and its metal complexes: Structural and photophysical studies. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.05.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Stetsiuk O, Petrusenko SR, Sorace L, Lupan A, Attia AAA, Kokozay VN, El-Ghayoury A, Avarvari N. Versatile coordination behaviour of the chloro-tetrazine-picolylamine ligand: mixed-valence binuclear Cu(i)/Cu(ii) complexes. Dalton Trans 2019; 48:11966-11977. [PMID: 31313787 DOI: 10.1039/c9dt02379h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The 3-Cl-6-amino-(2'-picolyl)-1,2,4,5-tetrazine ligand HL1 has been synthesized and structurally characterized. Its versatile coordination behavior has been evidenced through reactions with Cu(Hfac)2 and Cu(triflate)2 precursors, which provided mixed-valence bimetallic Cu1.5Cu1.5 complexes [Cu2(μ-Cl)(L1)2] 2 and [Cu2(μ-triflate)(L1)2] 5. Changing the Cu(ii) precursor and the solvent leads to the formation of mononuclear octahedral Cu(ii) complexes [CuCl2(HL1)2]·2CH3CN 3 and [Cu(Hfac)2(HL1)] 4, in which only the amino-pyridine unit is involved in the coordination of the metal center. In contrast, in complexes 2 and 5, the ligands are deprotonated and bridge the metal centers as pyridine-amido-tetrazine fragments, while a bridging chloride or triflate ligand completes the coordination sphere of the metal ions. The Cu-Cu distances of 2.4313(4) Å in 2 and 2.5198(10) Å in 5 lie among the shorter values within mixed-valence bimetallic Cu complexes. Mixed-valence character is strongly supported by DFT calculations, showing the equal repartition of the unpaired electron between the two metal centers.
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Affiliation(s)
- Oleh Stetsiuk
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France. and Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, Kyiv 01601, Ukraine
| | - Svitlana R Petrusenko
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, Kyiv 01601, Ukraine
| | - Lorenzo Sorace
- Dipartimento di Chimica "Ugo Schiff" and UdR INSTM, Università di Firenze, 50019 Sesto Fiorentino, Italy
| | - Alexandru Lupan
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Amr A A Attia
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Vladimir N Kokozay
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, Kyiv 01601, Ukraine
| | - Abdelkrim El-Ghayoury
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France.
| | - Narcis Avarvari
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France.
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14
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Ben Saad I, Hannachi N, Roisnel T, Hlel F. Ionic organic-inorganic (C6H10N2) (Hg2Cl5)2·3H2O compound: Structural study, hirshfeld surface, thermal behavior and spectroscopic studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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Structural, spectral and theoretical study of the coordination of 3,6-bis(2-pyridyl)tetrazine ligand with zinc(II) and mercury(II). Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.08.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Stetsiuk O, El-Ghayoury A, Lloret F, Julve M, Avarvari N. Mononuclear and One-Dimensional Cobalt(II) Complexes with the 3,6-Bis(picolylamino)-1,2,4,5-tetrazine Ligand. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Oleh Stetsiuk
- Laboratoire MOLTECH-Anjou, UMR 6200; CNRS Université d'Angers, UFR Sciences, Bât. K; 2 Bd. Lavoisier 49045 Angers France
- Department of Inorganic Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska str. 64/13 01601 Kyiv Ukraine
| | - Abdelkrim El-Ghayoury
- Laboratoire MOLTECH-Anjou, UMR 6200; CNRS Université d'Angers, UFR Sciences, Bât. K; 2 Bd. Lavoisier 49045 Angers France
| | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica; Universitat de València; C/Catedrático José Beltrán 2 46980 Paterna (Valencia) Spain
| | - Miguel Julve
- Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica; Universitat de València; C/Catedrático José Beltrán 2 46980 Paterna (Valencia) Spain
| | - Narcis Avarvari
- Laboratoire MOLTECH-Anjou, UMR 6200; CNRS Université d'Angers, UFR Sciences, Bât. K; 2 Bd. Lavoisier 49045 Angers France
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17
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Haynes CJE, Zhu J, Chimerel C, Hernández-Ainsa S, Riddell IA, Ronson TK, Keyser UF, Nitschke JR. Blockable Zn10
L15
Ion Channels through Subcomponent Self-Assembly. Angew Chem Int Ed Engl 2017; 56:15388-15392. [DOI: 10.1002/anie.201709544] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Cally J. E. Haynes
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Jinbo Zhu
- Cavendish Laboratory; University of Cambridge; JJ Thompson Avenue Cambridge CB3 0HE UK
| | - Catalin Chimerel
- Cavendish Laboratory; University of Cambridge; JJ Thompson Avenue Cambridge CB3 0HE UK
| | | | - Imogen A. Riddell
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
- Current address: School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Tanya K. Ronson
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Ulrich F. Keyser
- Cavendish Laboratory; University of Cambridge; JJ Thompson Avenue Cambridge CB3 0HE UK
| | - Jonathan R. Nitschke
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
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18
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Haynes CJE, Zhu J, Chimerel C, Hernández-Ainsa S, Riddell IA, Ronson TK, Keyser UF, Nitschke JR. Blockable Zn10
L15
Ion Channels through Subcomponent Self-Assembly. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709544] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cally J. E. Haynes
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Jinbo Zhu
- Cavendish Laboratory; University of Cambridge; JJ Thompson Avenue Cambridge CB3 0HE UK
| | - Catalin Chimerel
- Cavendish Laboratory; University of Cambridge; JJ Thompson Avenue Cambridge CB3 0HE UK
| | | | - Imogen A. Riddell
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
- Current address: School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Tanya K. Ronson
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Ulrich F. Keyser
- Cavendish Laboratory; University of Cambridge; JJ Thompson Avenue Cambridge CB3 0HE UK
| | - Jonathan R. Nitschke
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
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19
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Structural diversity of copper(I) cyclodiene complexes bridged by 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.08.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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20
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Woods TJ, Stout HD, Dolinar BS, Vignesh KR, Ballesteros-Rivas MF, Achim C, Dunbar KR. Strong Ferromagnetic Exchange Coupling Mediated by a Bridging Tetrazine Radical in a Dinuclear Nickel Complex. Inorg Chem 2017; 56:12094-12097. [PMID: 28945087 DOI: 10.1021/acs.inorgchem.7b01812] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The radical bridged compound [(Ni(TPMA))2-μ-bmtz•-](BF4)3·3CH3CN (bmtz = 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine, TPMA = tris(2-pyridylmethyl)amine) exhibits strong ferromagnetic exchange between the S = 1 NiII centers and the bridging S = 1/2 bmtz radical with J = 96 ± 5 cm-1 (-2JNi-radSNiSrad). DFT calculations support the existence of strong ferromagnetic exchange.
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Affiliation(s)
- Toby J Woods
- Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States
| | - Heather D Stout
- Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States
| | - Brian S Dolinar
- Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States
| | - Kuduva R Vignesh
- Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States
| | | | - Catalina Achim
- Department of Chemistry, Carnegie Mellon University , Pittsburgh, Pennsylvania 15213, United States
| | - Kim R Dunbar
- Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States
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21
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Alexandropoulos DI, Dolinar BS, Vignesh KR, Dunbar KR. Putting a New Spin on Supramolecular Metallacycles: Co 3 Triangle and Co 4 Square Bearing Tetrazine-Based Radicals as Bridges. J Am Chem Soc 2017; 139:11040-11043. [PMID: 28728414 DOI: 10.1021/jacs.7b06925] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of two new radical-bridged compounds [Co3(bptz)3(dbm)3]·2toluene (1) and [Co4(bptz)4(dbm)4]·4MeCN (2) (bptz = 3,6-bis(pyridyl)-1,2,4,5-tetrazine; dbm = 1,3-diphenyl-1,3-propanedionate) is reported. The presence of the ligand-centered radical has been confirmed by X-ray crystallography and SQUID magnetometry. These complexes are the first metallacycles bearing nitrogen heterocyclic radicals as bridges. Magnetic studies reveal strong antiferromagnetic metal···radical coupling with coupling constants of J = -67.5 and -66.8 cm-1 for 1 and 2, respectively. DFT calculations further support the strong antiferromagnetic coupling between CoII ions and bptz radicals and confirm S = 3 and S = 4 spin ground states for 1 and 2, respectively.
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Affiliation(s)
| | - Brian S Dolinar
- Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States
| | - Kuduva R Vignesh
- Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States
| | - Kim R Dunbar
- Department of Chemistry, Texas A&M University , College Station, Texas 77842-3012, United States
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22
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Lemes MA, Brunet G, Pialat A, Ungur L, Korobkov I, Murugesu M. Strong ferromagnetic exchange coupling in a {Ni} cluster mediated through an air-stable tetrazine-based radical anion. Chem Commun (Camb) 2017; 53:8660-8663. [PMID: 28718476 DOI: 10.1039/c7cc04554a] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A planar tetradentate 3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine (BpymTz) templating chelate affords the formation of an unprecedented BpymTz˙- radical anion bridged {Ni} complex. Detailed magnetic measurements performed on the isolated air stable [Ni(BpymTz˙-)Cl6(DMF)8]Cl·0.5(H2O) compound reveal strong ferromagnetic NiII-BpymTz˙- interactions with a coupling constant of J = 98.84 cm-1.
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Affiliation(s)
- Maykon A Lemes
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, ON K1N 6N5, Canada.
| | - Gabriel Brunet
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, ON K1N 6N5, Canada.
| | - Amélie Pialat
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, ON K1N 6N5, Canada.
| | - Liviu Ungur
- Theory of Nanomaterials Group and INPC - Institute for Nanoscale Physics and Chemistry, Katholieke Universitiet Leuven, Celestijnenlaan, 200F, 3001 Leuven, Belgium
| | - Ilia Korobkov
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, ON K1N 6N5, Canada.
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, ON K1N 6N5, Canada.
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23
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Dolinar BS, Gómez-Coca S, Alexandropoulos DI, Dunbar KR. An air stable radical-bridged dysprosium single molecule magnet and its neutral counterpart: redox switching of magnetic relaxation dynamics. Chem Commun (Camb) 2017; 53:2283-2286. [DOI: 10.1039/c6cc09824j] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Addition of a radical to the bridging tetrazine ligand of a Dy2 complex dramatically alters the magnetic properties. The radical complex undergoes magnetic relaxation via a thermal relaxation pathway, whereas the neutral compound relaxes via quantum tunneling of the magnetization.
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Affiliation(s)
| | | | | | - Kim R. Dunbar
- Department of Chemistry
- Texas A&M University
- College Station
- USA
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24
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Mononuclear, tetranuclear and polymeric cadmium(II) complexes with the 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine ligand: Synthesis, crystal structure, spectroscopic and DFT studies. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.08.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Savastano M, Bazzicalupi C, Giorgi C, García-Gallarín C, López de la Torre MD, Pichierri F, Bianchi A, Melguizo M. Anion Complexes with Tetrazine-Based Ligands: Formation of Strong Anion-π Interactions in Solution and in the Solid State. Inorg Chem 2016; 55:8013-24. [PMID: 27454810 DOI: 10.1021/acs.inorgchem.6b01138] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ligands L1 and L2, consisting of a tetrazine ring decorated with two morpholine pendants of different lengths, show peculiar anion-binding behaviors. In several cases, even the neutral ligands, in addition to their protonated HL(+) and H2L(2+) (L = L1 and L2) forms, bind anions such as F(-), NO3(-), PF6(-), ClO4(-), and SO4(2-) to form stable complexes in water. The crystal structures of H2L1(PF6)2·2H2O, H2L1(ClO4)2·2H2O, H2L2(NO3)2, H2L2(PF6)2·H2O, and H2L2(ClO4)2·H2O show that anion-π interactions are pivotal for the formation of these complexes, although other weak forces may contribute to their stability. Complex stability constants were determined by means of potentiometric titration in aqueous solution at 298.1 K, while dissection of the free-energy change of association (ΔG°) into its enthalpic (ΔH°) and entropic (TΔS°) components was accomplished by means of isothermal titration calorimetry measurements. Stability constants are poorly regulated by anion-ligand charge-charge attraction. Thermodynamic data show that the formation of complexes with neutral ligands, which are principally stabilized by anion-π interactions, is enthalpically favorable (-ΔG°, 11.1-17.5 kJ/mol; ΔH°, -2.3 to -0.5 kJ/mol; TΔS°, 9.0-17.0 kJ/mol), while for charged ligands, enthalpy changes are mostly unfavorable. Complexation reactions are invariably promoted by large and favorable entropic contributions. The importance of desolvation phenomena manifested by such thermodynamic data was confirmed by the hydrodynamic results obtained by means of diffusion NMR spectroscopy. In the case of L2, complexation equilibria were also studied in a 80:20 (v/v) water/ethanol mixture. In this mixed solvent of lower dielectric constant than water, the stability of anion complexes decreases, relative to water. Solvation effects, mostly involving the ligand, are thought to be responsible for this peculiar behavior.
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Affiliation(s)
- Matteo Savastano
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Carla Bazzicalupi
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Claudia Giorgi
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | | | | | - Fabio Pichierri
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University , 980-8579 Sendai, Japan
| | - Antonio Bianchi
- Department of Chemistry "Ugo Schiff", University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Manuel Melguizo
- Department of Inorganic and Organic Chemistry, University of Jaén , 23071 Jaén, Spain
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26
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Study of a novel hepta-coordinated FeIII bimetallic complex with an unusual 1,2,4,5-tetrazine-ring opening. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.11.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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One-dimensional mercury(II) halide coordination polymers of 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine ligand: Synthesis, crystal structure, spectroscopic and DFT studies. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2015.11.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Farajpour E, Sohrabi B, Beheshtian J. Selective separation behavior of graphene flakes in interaction with halide anions in the presence of an external electric field. Phys Chem Chem Phys 2016; 18:7293-9. [DOI: 10.1039/c5cp07710a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The adsorption of halide anions in the absence, and presence, of a perpendicularly external electric field on the C54H18 graphene surface has been investigated using M06-2X/6-31G(d,p) density functional theory (DFT).
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Affiliation(s)
- E. Farajpour
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
| | - B. Sohrabi
- Department of Chemistry
- Surface Chemistry Research Laboratory
- Iran University of Science and Technology
- Tehran
- Iran
| | - J. Beheshtian
- Chemistry Department
- Faculty of Sciences
- Shahid Rajaee Teacher Training University
- Tehran
- Iran
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29
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Ronson TK, Roberts DA, Black SP, Nitschke JR. Stacking Interactions Drive Selective Self-Assembly and Self-Sorting of Pyrene-Based M(II)4L6 Architectures. J Am Chem Soc 2015; 137:14502-12. [PMID: 26509841 DOI: 10.1021/jacs.5b09920] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Subcomponent self-assembly of two isomeric bis(3-aminophenyl)pyrenes, 2-formylpyridine and the metal ions Fe(II), Co(II), and Zn(II) led to the formation of two previously unidentified structure types: a C2-symmetric M(II)4L6 assembly with meridionally coordinated metal centers, and a C3-symmetric self-included M(II)4L6 assembly with facially coordinated metal centers. In both structures the meta linkages within the ligands facilitate π-stacking between the pyrene panels of the ligands. A C2h-symmetric M(II)2L2 box was also obtained, which was observed to selectively bind electron-deficient aromatic guests between two parallel pyrene subunits. Similar donor-acceptor interactions drove the selective self-assembly of a singular M(II)4L4L'2 architecture incorporating both a pyrene-containing diamine and an electron-deficient NDI-based diamine. This heteroleptic architecture was shown to be thermodynamically favored over the corresponding homoleptic M(II)4L6 and M(II)4L'6 complexes, which were nonetheless stable in each others' absence. By contrast, an isomeric pyrene-based diamine was observed to undergo narcissistic self-sorting in the presence of the NDI-based diamine.
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Affiliation(s)
- Tanya K Ronson
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Derrick A Roberts
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Samuel P Black
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Jonathan R Nitschke
- Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge, CB2 1EW, U.K
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30
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Safin DA, Pialat A, Leitch AA, Tumanov NA, Korobkov I, Filinchuk Y, Brusso JL, Murugesu M. Anion-induced AgIself-assemblies with electron deficient aromatic ligands: anion–π-system interactions as a driving force for templated coordination networks. Chem Commun (Camb) 2015; 51:9547-50. [DOI: 10.1039/c5cc01597a] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1D, 2D and 3D AgIcoordination polymers were isolated using nitrogen based 3,6-bis(2′-pyrimidyl)-1,2,4,5-tetrazine and 2,4,6-tris(2-pyrimidyl)-1,3,5-triazine ligands.
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Affiliation(s)
- Damir A. Safin
- Department of Chemistry
- University of Ottawa
- Ottawa
- Canada K1N 6N5
| | - Amélie Pialat
- Department of Chemistry
- University of Ottawa
- Ottawa
- Canada K1N 6N5
| | | | - Nikolay A. Tumanov
- Institute of Condensed Matter and Nanosciences
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
| | - Ilia Korobkov
- Department of Chemistry
- University of Ottawa
- Ottawa
- Canada K1N 6N5
| | - Yaroslav Filinchuk
- Institute of Condensed Matter and Nanosciences
- Université catholique de Louvain
- 1348 Louvain-la-Neuve
- Belgium
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31
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Riddell IA, Ronson TK, Clegg JK, Wood CS, Bilbeisi RA, Nitschke JR. Cation- and Anion-Exchanges Induce Multiple Distinct Rearrangements within Metallosupramolecular Architectures. J Am Chem Soc 2014; 136:9491-8. [DOI: 10.1021/ja504748g] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Imogen A. Riddell
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Tanya K. Ronson
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Jack K. Clegg
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Christopher S. Wood
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Rana A. Bilbeisi
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
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32
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Pang J, Jiang F, Yuan D, Zheng J, Wu M, Liu G, Su K, Hong M. SO42− anion directed hexagonal-prismatic cages via cooperative C–H⋯O hydrogen bonds. Chem Sci 2014. [DOI: 10.1039/c4sc01973c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Hexagonal-prismatic cages are constructed from cubane-like Ni4(μ3-OH)4 clusters generated in situ and clip-like organic ligands.
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Affiliation(s)
- Jiandong Pang
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
| | - Feilong Jiang
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
| | - Daqiang Yuan
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
| | - Jun Zheng
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
| | - Mingyan Wu
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
| | - Guoliang Liu
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
| | - Kongzhao Su
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
| | - Maochun Hong
- Key Lab of Coal to Ethylene Glycol and Its Related Technology
- State Key Lab of Structure Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou, China
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33
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Li XL, Kang JL, Zhang XL, Xiao HP, Wang AL, Zhou L, Fang SM, Liu CM. Anion-controlled self-assembly of two NLO-active dinuclear and molecular square Cu(ii) enantiomeric pairs: from antiferromagnetic to ferromagnetic coupling. Dalton Trans 2014; 43:17226-9. [DOI: 10.1039/c4dt01671h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Two dinuclear and molecular square Cu(ii) enantiomeric pairs were obtained, and their magnetic properties are switched from antiferromagnetic to ferromagnetic coupling.
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Affiliation(s)
- Xi-Li Li
- Henan Provincial Key Laboratory of Surface and Interface Science
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002, China
| | - Jia-Long Kang
- Henan Provincial Key Laboratory of Surface and Interface Science
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002, China
| | - Xue-Li Zhang
- Henan Provincial Key Laboratory of Surface and Interface Science
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002, China
| | - Hong-Ping Xiao
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325035, China
| | - Ai-Ling Wang
- Henan Provincial Key Laboratory of Surface and Interface Science
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002, China
| | - Liming Zhou
- Henan Provincial Key Laboratory of Surface and Interface Science
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002, China
| | - Shao-Ming Fang
- Henan Provincial Key Laboratory of Surface and Interface Science
- Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration
- Zhengzhou University of Light Industry
- Zhengzhou 450002, China
| | - Cai-Ming Liu
- Beijing National Laboratory for Molecular Science
- Institution of Chemistry
- Chinese Academy of Science
- Center for Molecular Science
- Beijing 100190, China
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Zheng Z, Yu ZP, Yang MD, Jin F, Ye LN, Fang M, Zhou HP, Wu JY, Tian YP. Silver(i) supramolecular complexes generated from isophorone-based ligands: crystal structures and enhanced nonlinear optical properties through metal complexation. Dalton Trans 2014; 43:1139-50. [DOI: 10.1039/c3dt52364k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Chen Q, Jiang F, Yuan D, Lyu G, Chen L, Hong M. A controllable and dynamic assembly system based on discrete metallocages. Chem Sci 2014. [DOI: 10.1039/c3sc52442f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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36
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Maekawa M, Miyazaki T, Sugimoto K, Okubo T, Kuroda-Sowa T, Munakata M, Kitagawa S. Preparations and structural diversity of copper(I) ethylene adducts with related 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine ligands. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.10.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Widdifield CM, Cavallo G, Facey GA, Pilati T, Lin J, Metrangolo P, Resnati G, Bryce DL. Multinuclear Solid-State Magnetic Resonance as a Sensitive Probe of Structural Changes upon the Occurrence of Halogen Bonding in Co-crystals. Chemistry 2013; 19:11949-62. [DOI: 10.1002/chem.201300809] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 06/10/2013] [Indexed: 01/20/2023]
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Beves JE, Campbell CJ, Leigh DA, Pritchard RG. Tetrameric cyclic double helicates as a scaffold for a molecular Solomon link. Angew Chem Int Ed Engl 2013; 52:6464-7. [PMID: 23649728 PMCID: PMC4139000 DOI: 10.1002/anie.201302634] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Indexed: 12/05/2022]
Affiliation(s)
- Jonathon E Beves
- School of Chemistry, University of Edinburgh, The King's BuildingsWest Mains Road, Edinburgh EH9 3JJ (UK)
| | - Christopher J Campbell
- School of Chemistry, University of Edinburgh, The King's BuildingsWest Mains Road, Edinburgh EH9 3JJ (UK)
| | - David A Leigh
- School of Chemistry, University of Edinburgh, The King's BuildingsWest Mains Road, Edinburgh EH9 3JJ (UK)
- School of Chemistry, University of ManchesterOxford Road, Manchester M13 9PL (UK)
| | - Robin G Pritchard
- School of Chemistry, University of ManchesterOxford Road, Manchester M13 9PL (UK)
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39
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Beves JE, Campbell CJ, Leigh DA, Pritchard RG. Tetrameric Cyclic Double Helicates as a Scaffold for a Molecular Solomon Link. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302634] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Abstract
The study of the noncovalent force between π-acidic aromatic systems and anions, referred to as the anion-π interaction, has recently emerged as a new branch of supramolecular chemistry. The anion-π contact is complementary to the cation-π interaction, a prominent noncovalent force involved in protein structure and enzyme function. Until recently, the scientific community had overlooked the anion-π interaction due to its ostensibly counterintuitive nature. Pioneering theoretical studies in 2002, however, established that anion-π interactions are energetically favorable (~20-70 kJ/mol) and prompted a flurry of reports in support of their existence. The interest in anion-π contacts was further fueled by the importance of anions in key chemical and biological processes and the involvement of π-rings in anion recognition and transport. Anion-π interactions hold great promise for the design of selective anion receptors, hosts or scaffolds, colorimetric sensors, and catalysts and may also affect biological functions. Currently, the area of anion-π research is highly topical in the scientific community and on a meteoric rise in the chemical literature. This Account highlights our leading findings in this burgeoning area. Our work has focused on comprehensive investigations of several unprecedented supramolecular systems, in which the anions and their close anion-π contacts are the driving elements of the final architectures. We surveyed several heterocyclic π-acidic aromatic systems amenable to anion-π contacts and explored the subtle interplay between ligand π-acidity, anion identity, and metal ions in mediating the ensuing self-assembled architectures. The reactions we performed between solvated first-row transition metal ions and the π-acidic ligands bptz (3,6-bis(2-pyridyl)-1,2,4,5-tetrazine) or bmtz (3,6-bis(2-pyrimidyl)-1,2,4,5-tetrazine) resulted in unprecedented metallacycles. Our investigations revealed that the identity of the encapsulated ion dictates the metallacycle nuclearity and close anion-π contacts are critical for the metallacycle stability. Our X-ray crystallographic, NMR spectroscopic, and mass spectrometric (MS) studies demonstrated that the tetrahedral ([BF4](-), [ClO4](-)) and octahedral ([SbF6](-), [AsF6](-), [PF6](-)) anions template discrete molecular squares and pentagons, respectively. The metal ions occupy the vertices, and bptz or bmtz moieties span the edges of the metallacycles. The encapsulated anions occupy the π-acidic cavities of the metallacycles and establish multiple close directional F/O···C(tetrazine) contacts with the edges. The observation of notable (19)F solid-state NMR chemical shifts reflects the short contacts of the encapsulated anions, findings that we corroborated by DFT calculations. The solution NMR data support the conclusion that bona fide metallacycle templation and interconversion between the metallacycles in solution occurs only in the presence of the appropriate anions. The NMR, MS, and CV data underscore the remarkable metallapentacycle stability despite the angle strain inherent in pentagons formed by octahedral metal ions. The low anion activation energies of encapsulation (ΔG(‡) ~ 50 kJ/mol) suggest that anion-π contacts assist the anion templation. We also studied reactions of Ag(I)X (X(-) = [PF6](-), [AsF6](-), [SbF6](-), [BF4](-)) with bptz or bppn (3,6-bis(2-pyridyl)-1,2-pyridazine) to assess the effect of the ligand π-acidity on the preferred structures. The X-ray data revealed that the higher π-acidity of the tetrazine ring in bptz leads to propeller-type products [Ag2(bptz)3](2+) exhibiting prominent short anion-π contacts. By contrast, the less π-acidic bppn preferentially favors grids [Ag4(bppn)4](4+) which exhibit maximized π-π interactions. Finally, we explored the reactions of the extended π-acidic heterocycle HAT(CN)6 (1,4,5,8,9,12-hexaazatriphenylene-hexacarbonitrile) with the Cl(-), Br(-), I(-) ions which lead to highly colored solutions/crystals. X-ray crystallographic studies of the HAT(CN)6/halide complexes revealed unprecedented multisite short peripheral charge-transfer and centroid anion-π contacts. In solution, the charge-transfer contacts were evidenced by electronic absorption, (13)C and halogen NMR, as well as MS data. The distinctly colored complex entities exhibit extraordinarily high association constants, which render them promising for anion-sensing receptor applications.
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Affiliation(s)
- Helen T. Chifotides
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842, United States
| | - Kim R. Dunbar
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas 77842, United States
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41
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Chifotides HT, Giles ID, Dunbar KR. Supramolecular Architectures with π-Acidic 3,6-Bis(2-pyridyl)-1,2,4,5-tetrazine Cavities: Role of Anion−π Interactions in the Remarkable Stability of Fe(II) Metallacycles in Solution. J Am Chem Soc 2013; 135:3039-55. [DOI: 10.1021/ja3082473] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Helen T. Chifotides
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Ian D. Giles
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Kim R. Dunbar
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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42
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Riddell IA, Hristova YR, Clegg JK, Wood CS, Breiner B, Nitschke JR. Five Discrete Multinuclear Metal-Organic Assemblies from One Ligand: Deciphering the Effects of Different Templates. J Am Chem Soc 2013; 135:2723-33. [DOI: 10.1021/ja311285b] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Imogen A. Riddell
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Yana R. Hristova
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Jack K. Clegg
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Christopher S. Wood
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Boris Breiner
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
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43
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Maekawa M, Miyazaki T, Sugimoto K, Okubo T, Kuroda-Sowa T, Munakata M, Kitagawa S. Structural diversity among copper(i) ethylene adducts of 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine. Dalton Trans 2013; 42:4258-66. [DOI: 10.1039/c2dt32649c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Seth P, Bauzá A, Frontera A, Massera C, Gamez P, Ghosh A. Analysis of the contribution of the π-acidity of the s-tetrazine ring in the crystal packing of coordination polymers. CrystEngComm 2013. [DOI: 10.1039/c3ce00058c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Chen Q, Jiang F, Yuan D, Chen L, Lyu G, Hong M. Anion-driven self-assembly: from discrete cages to infinite polycatenanes step by step. Chem Commun (Camb) 2013; 49:719-21. [DOI: 10.1039/c2cc36921d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Arranz-Mascarós P, Bazzicalupi C, Bianchi A, Giorgi C, Godino-Salido ML, Gutiérrez-Valero MD, Lopez-Garzón R, Savastano M. Thermodynamics of Anion−π Interactions in Aqueous Solution. J Am Chem Soc 2012; 135:102-5. [DOI: 10.1021/ja311389z] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Carla Bazzicalupi
- Department
of Chemistry “Ugo
Schiff”, University of Florence,
Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Antonio Bianchi
- Department
of Chemistry “Ugo
Schiff”, University of Florence,
Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Claudia Giorgi
- Department
of Chemistry “Ugo
Schiff”, University of Florence,
Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | | | | | - Rafael Lopez-Garzón
- Department of Inorganic and
Organic Chemistry, University of Jaen,
23071, Jaen, Spain
| | - Matteo Savastano
- Department
of Chemistry “Ugo
Schiff”, University of Florence,
Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
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47
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Riddell IA, Smulders MMJ, Clegg JK, Hristova YR, Breiner B, Thoburn JD, Nitschke JR. Anion-induced reconstitution of a self-assembling system to express a chloride-binding Co10L15 pentagonal prism. Nat Chem 2012; 4:751-6. [DOI: 10.1038/nchem.1407] [Citation(s) in RCA: 233] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Accepted: 06/19/2012] [Indexed: 12/25/2022]
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48
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Bassanetti I, Mezzadri F, Comotti A, Sozzani P, Gennari M, Calestani G, Marchiò L. Influence of Anions in Silver Supramolecular Frameworks: Structural Characteristics and Sorption Properties. J Am Chem Soc 2012; 134:9142-5. [DOI: 10.1021/ja303940d] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Irene Bassanetti
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica,
Chimica Fisica, Parco area delle Scienze 17/a, Università degli Studi di Parma, Parma, Italy
| | - Francesco Mezzadri
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica,
Chimica Fisica, Parco area delle Scienze 17/a, Università degli Studi di Parma, Parma, Italy
| | - Angiolina Comotti
- Department of Materials Science, University of Milano Bicocca, Via R. Cozzi 53, 20125
Milano, Italy
| | - Piero Sozzani
- Department of Materials Science, University of Milano Bicocca, Via R. Cozzi 53, 20125
Milano, Italy
| | - Marcello Gennari
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica,
Chimica Fisica, Parco area delle Scienze 17/a, Università degli Studi di Parma, Parma, Italy
| | - Gianluca Calestani
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica,
Chimica Fisica, Parco area delle Scienze 17/a, Università degli Studi di Parma, Parma, Italy
| | - Luciano Marchiò
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica,
Chimica Fisica, Parco area delle Scienze 17/a, Università degli Studi di Parma, Parma, Italy
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49
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Ayme JF, Beves JE, Leigh DA, McBurney RT, Rissanen K, Schultz D. Pentameric Circular Iron(II) Double Helicates and a Molecular Pentafoil Knot. J Am Chem Soc 2012; 134:9488-97. [PMID: 22554153 DOI: 10.1021/ja303355v] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jean-François Ayme
- School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Jonathon E. Beves
- School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - David A. Leigh
- School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Roy T. McBurney
- School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
| | - Kari Rissanen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 JYU, Finland
| | - David Schultz
- School of Chemistry, University of Edinburgh, The King’s Buildings, West Mains Road, Edinburgh EH9 3JJ, United Kingdom
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50
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Jin F, Yang XF, Li SL, Zheng Z, Yu ZP, Kong L, Hao FY, Yang JX, Wu JY, Tian YP, Zhou HP. Role of anions in preparing silver(i) complexes with a new multidentate ligand: polymorphs, structures and nonlinear optical properties. CrystEngComm 2012. [DOI: 10.1039/c2ce26145f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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