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Alves LG, Souto M, Madeira F, Adão P, Munhá RF, Martins AM. Syntheses and solid state structures of cyclam-based copper and zinc compounds. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Pouessel J, Le Bris N, Bencini A, Giorgi C, Valtancoli B, Tripier R. Glyphosate and ATP binding by mononuclear Zn(II) complexes with non-symmetric ditopic polyamine ligands. Dalton Trans 2012; 41:10521-32. [PMID: 22785253 DOI: 10.1039/c2dt31110k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Binding of Zn(II) by the ditopic ligands L1py, L2py and L1para, composed of a cyclam unit linked to the linear polyamines 1,4,8,11-tetraazaundecane (L1py and L2para) and 1,4,7-triazaheptane (L2py) via a 2,6-dimethylpyridinyl (L1py and L2py) or a 1,4-dimethylbenzyl spacer (L2para), has been analyzed by means of potentiometric and (1)H and (13)C NMR measurements. All ligands form stable mononuclear Zn(II) complexes in a wide pH range, featuring the metal ion bound to the macrocyclic unit. The open-chain polyamine unit can easily bind several protons in aqueous solution affording protonated metal complexes at neutral and acidic pH values. These complexes behave as bifunctional receptors for the anionic substrates N-(phosphonomethyl)glycine (glyphosate or PMG) and ATP. Potentiometric, (1)H and (31)P NMR measurements show that the Zn(II) complex with L1py is the better receptor for both substrates, thanks to the simultaneous presence of a pyridine linker functionalized at its 2,6 positions and of a flexible linear tetraamine chain. In fact, these structural features allow a stronger interaction of PMG and ATP with both the protonated tetraamine moiety and the Zn(II)-cyclam core.
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Affiliation(s)
- Jacky Pouessel
- Université de Bretagne Occidentale, UMR-CNRS 6521, UFR Sciences et Techniques, 6 Avenue Victor Le Gorgeu, C.S. 93837, 29238 Brest Cedex 3, France
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Choi JH, Clegg W, Nichol G. Synthesis, Crystal Structure and Spectroscopic Properties of [2,13-Bis(1-naphthalenylmethyl)-5,16-dimethyl-2,6,13,17-tetraazatricyclo(14,4,01.18,07.12)docosane]copper(II) Diperchlorate Acetonitrile Disolvate. Z Anorg Allg Chem 2010. [DOI: 10.1002/zaac.200900551] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Doménech A, García-España E, Bernier N, Tripier R, Handel H. Electrochemically-driven conformational shift in mono- and di-copper constrained macrotricyclic cyclen receptors. Dalton Trans 2008:3169-77. [DOI: 10.1039/b718163a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Brandès S, David G, Suspène C, Corriu RJP, Guilard R. Exceptional Affinity of Nanostructured Organic–Inorganic Hybrid Materials towards Dioxygen: Confinement Effect of Copper Complexes. Chemistry 2007; 13:3480-90. [PMID: 17221891 DOI: 10.1002/chem.200601166] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We report the exceptional reactivity towards dioxygen of a nanostructured organic-inorganic hybrid material due to the confinement of copper cyclam within a silica matrix. The key step is the metalation reaction of the ligand, which can occur before or after xerogel formation through the sol-gel process. The incorporation of a Cu(II) center into the material after xerogel formation leads to a bridged Cu(I)/Cu(II) mixed-valence dinuclear species. This complex exhibits a very high affinity towards dioxygen, attributable to auto-organization of the active species in the solid. The remarkable properties of these copper complexes in the silica matrix demonstrate a high cooperative effect for O(2) adsorption; this is induced by close confinement of the two copper ions leading to end-on mu-eta(1):eta(1)-peroxodicopper(II) complexes. The anisotropic packing of the tetraazamacrocycle in a lamellar structure induces an exceptional reactivity of these copper complexes. We show for the first time that the organic-inorganic environment of copper complexes in a silica matrix fully model the protecting role of protein in metalloenzymes. For the first time an oxygenated dicopper(II) complex can be isolated in a stable form at room temperature, and the reduced Cu(2) (I,I) species can be regenerated after several adsorption-desorption cycles. These data also demonstrate that the coordination scheme and reactivity of the copper cyclams within the solid are quite different from that observed in solution.
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Affiliation(s)
- Stéphane Brandès
- LIMSAG, UMR 5633, Université de Bourgogne, UFR Sciences et Techniques, 9 avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
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McRobbie G, Valks GC, Empson CJ, Khan A, Silversides JD, Pannecouque C, De Clercq E, Fiddy SG, Bridgeman AJ, Young NA, Archibald SJ. Probing key coordination interactions: configurationally restricted metal activated CXCR4 antagonists. Dalton Trans 2007:5008-18. [DOI: 10.1039/b705800d] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Electron transfer induced topological reorganisations in copper complexes of N-tetrasubstituted tetraazamacrocycles. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(03)00216-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Enoki O, Imaoka T, Yamamoto K. Synthesis of novel phenylazomethine dendrimers having a cyclam core and their zinc complex. Org Lett 2003; 5:2547-9. [PMID: 12841777 DOI: 10.1021/ol034817j] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[structure: see text] Novel phenylazomethine dendrimers having a cyclam core were synthesized by the convergent method. The dendrimers showed selective coordination with zinc chloride on the cyclam ring and with tin chloride on the imine groups. The metal cyclam exhibits a metal-assembling function to provide a multinuclear hetero metal complex.
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Affiliation(s)
- Osamu Enoki
- Department of Chemistry, Faculty of Science & Technology, Keio University, Yokohama 223-8522, Japan
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Soibinet M, Déchamps-Olivier I, Guillon E, Barbier JP, Aplincourt M, Chuburu F, Le Baccon M, Handel H. XAS, ESR and Potentiometric Studies of Three Dinuclear N,N′-para-Xylylenebis(tetraazamacrocycle)copper(II) Complexes − X-ray Crystal Structure of [N,N′-p-Xylylenebis(cyclen)]copper(II). Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200200517] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bucher C, Duval E, Espinosa E, Barbe JM, Verpeaux JN, Amatore C, Guilard R. First Direct Synthesis of atrans-III Complex of Tetramethylcyclam − Physicochemical Characterization, Electrochemistry and X-ray Crystal Structure of 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane Copper(II) Bistetrafluoroborate. Eur J Inorg Chem 2001. [DOI: 10.1002/1099-0682(200104)2001:4<1077::aid-ejic1077>3.0.co;2-6] [Citation(s) in RCA: 18] [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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Elias H, Schumacher R, Schwamberger J, Wittekopf T, Helm L, Merbach AE, Ulrich S. Kinetics and mechanism of complex formation of nickel(II) with tetra-N-alkylated cyclam in N,N-dimethylformamide (DMF): comparative study on the reactivity and solvent exchange of the species Ni(DMF)6(2+) and Ni(DMF)5Cl+. Inorg Chem 2000; 39:1721-7. [PMID: 12526560 DOI: 10.1021/ic991139h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
13C NMR was used to study the rate of DMF exchange in the nickel(II) cation Ni(DMF)6(2+) and in the monochloro species Ni(DMF)5Cl+ with 13C-labeled DMF in the temperature range of 193-395 K in DMF (DMF = N,N-dimethylformamide). The kinetic parameters for solvent exchange are kex = (3.7 +/- 0.4) x 10(3) s-1, delta H++ = 59.3 +/- 5 kJ mol-1, and delta S++ = +22.3 +/- 14 J mol-1 K-1 for Ni(DMF)6(2+) and kex = (5.3 +/- 1) x 10(5) s-1, delta H++ = 42.4 +/- 4 kJ mol-1, and delta S++ = +6.7 +/- 15 J mol-1 K-1 for Ni(DMF)5Cl+. Multiwavelength stopped-flow spectrophotometry was used to study the kinetics of complex formation of the cation Ni(DMF)6(2+) and of the 100-fold more labile cation Ni(DMF)5Cl+ with TMC (1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane) and TEC (1,4,8,11-tetraethyl-1,4,8,11-tetraazacyclotetradecane) in DMF at 298 K and I = 0.6 M (tetra-n-butylammoniumperchlorate). Equilibrium constants K for the addition of the nucleophiles DMF, Cl-, and Br- to the complexes Ni(TMC)2+ and Ni(TEC)2+ were determined by spectrophotometric titration. Formation of the complexes Ni(TMC)2+ and Ni(TEC)2+ was found to occur in two stages. In the initial stage, fast, second-order nickel incorporation with rate constants k1(TMC) = 99 +/- 5 M-1 s-1 and k1 (TEC) = 235 +/- 12 M-1 s-1 leads to the intermediates Ni(TMC)int2+ and Ni(TEC)int2+, which have N4-coordinated nickel. In the second stage, these intermediates rearrange slowly to form the stereochemically most stable configuration. First-order rate constants for the one-step rearrangement of Ni(TMC)int2+ and the two-step rearrangment of Ni(TEC)int2+ are presented. Because of the rapid formation of Ni(DMF)5Cl+, the reactions of Ni(DMF)6(2+) with TMC and TEC are accelerated upon the addition of tetra-n-butylammoniumchloride (TBACl) and lead to the complexes Ni(TMC)Cl+ and Ni(TEC)Cl+, respectively. For initial concentrations such that [TBACl]o/[nickel]o > or = 20, intermediate formation is 230 times (TMC) and 47 times (TEC) faster than in the absence of chloride. The mechanism of complex formation is discussed.
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Affiliation(s)
- H Elias
- Institut für Anorganische Chemie, Technische Universität Darmstadt, Petersenstrasse 18, D-64287 Darmstadt, Federal Republic of Germany
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Bellouard F, Chuburu F, Yaouanc JJ, Handel H, Le Mest Y. A Convenient Synthetic Route to Polyether-Tagged Cyclam Ligands andTheir Nickel Derivatives. European J Org Chem 1999. [DOI: 10.1002/(sici)1099-0690(199912)1999:12<3257::aid-ejoc3257>3.0.co;2-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Donnelly MA, Zimmer M. Structural Analysis of All the Nickel 14-Membered Tetraaza Macrocycles in the Cambridge Structural Database. Inorg Chem 1999; 38:1650-1658. [PMID: 11670932 DOI: 10.1021/ic980918f] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
One hundred and thirty-nine nickel complexes containing the 1,4,8,11-tetraazacyclotetradecane backbone were found in the Cambridge Structural Database. Cluster analysis was used to separate the structures according to their macrocyclic configurations, using their conformations as a separation criteria. The most commonly found configuration was the trans III configuration. The amount of trans I macrocycles relative to trans III macrocycles was found to be higher for square-planar complexes than octahedral ones. Molecular mechanical conformational searches were done for select structures found in the Cambridge Structural Database.
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Affiliation(s)
- Maria A. Donnelly
- Chemistry Department, Connecticut College, New London, Connecticut 06320
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Kang SG, Kim MS, Whang D, Kim K. Synthesis and characterization of nickel(II) complexes of di-N-alkylated 14-membered tetraaza macrocycles containing cyclohexane rings via regioselective alkylation reaction. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(98)00123-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sueishi Y, Inoue H, Oka T, Tsukube H, Yamamoto S. EPR Studies at High-Pressures. V. Spin-Exchange Reactions of Nitroxide Radicals with Cobalt and Nickel Complexes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1998. [DOI: 10.1246/bcsj.71.817] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lachkar M, Guilard R, Atmani A, De Cian A, Fischer J, Weiss R. Synthesis of New Binucleating Cylindrical Macrotricyclic Ligands Where Two Cyclam Rings Are in a Face-to-Face Conformation. Characterization of Their Dicopper(II) and Dinickel(II) Complexes. Inorg Chem 1998. [DOI: 10.1021/ic9708327] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mohammed Lachkar
- Laboratoire de Synthèse et d'Electrosynthèse Organométalliques, “LSEO” (UMR 5632), 6 boulevard Gabriel, 21100-Dijon, France, Laboratoire de Chimie Organique, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mahraz, 30000-Fès, Morocco, and Laboratoire de Cristallochimie et de Chimie Structurale, UMR 7513, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67070-Strasbourg, France
| | - Roger Guilard
- Laboratoire de Synthèse et d'Electrosynthèse Organométalliques, “LSEO” (UMR 5632), 6 boulevard Gabriel, 21100-Dijon, France, Laboratoire de Chimie Organique, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mahraz, 30000-Fès, Morocco, and Laboratoire de Cristallochimie et de Chimie Structurale, UMR 7513, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67070-Strasbourg, France
| | - Aziz Atmani
- Laboratoire de Synthèse et d'Electrosynthèse Organométalliques, “LSEO” (UMR 5632), 6 boulevard Gabriel, 21100-Dijon, France, Laboratoire de Chimie Organique, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mahraz, 30000-Fès, Morocco, and Laboratoire de Cristallochimie et de Chimie Structurale, UMR 7513, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67070-Strasbourg, France
| | - André De Cian
- Laboratoire de Synthèse et d'Electrosynthèse Organométalliques, “LSEO” (UMR 5632), 6 boulevard Gabriel, 21100-Dijon, France, Laboratoire de Chimie Organique, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mahraz, 30000-Fès, Morocco, and Laboratoire de Cristallochimie et de Chimie Structurale, UMR 7513, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67070-Strasbourg, France
| | - Jean Fischer
- Laboratoire de Synthèse et d'Electrosynthèse Organométalliques, “LSEO” (UMR 5632), 6 boulevard Gabriel, 21100-Dijon, France, Laboratoire de Chimie Organique, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mahraz, 30000-Fès, Morocco, and Laboratoire de Cristallochimie et de Chimie Structurale, UMR 7513, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67070-Strasbourg, France
| | - Raymond Weiss
- Laboratoire de Synthèse et d'Electrosynthèse Organométalliques, “LSEO” (UMR 5632), 6 boulevard Gabriel, 21100-Dijon, France, Laboratoire de Chimie Organique, Université Sidi Mohamed Ben Abdellah, Faculté des Sciences Dhar El Mahraz, 30000-Fès, Morocco, and Laboratoire de Cristallochimie et de Chimie Structurale, UMR 7513, Institut Le Bel, Université Louis Pasteur, 4 rue Blaise Pascal, 67070-Strasbourg, France
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Kowallick R, Neuburger M, Zehnder M, Kaden TA. Metal Complexes with Macrocyclic Ligands. PartXLV Axial coordination tendency in reinforced tetraazamacrocyclic complexes. Helv Chim Acta 1997. [DOI: 10.1002/hlca.19970800326] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schmid CL, Neuburger M, Zehnder M, Kaden TA, Bujno K, Bilewicz R. Metal Complexes with Macrocyclic Ligands. Part XLIII. Tetraazamacrocyclic nickel(II) and copper(II) complexes with aliphatic methylthio- and methoxy-substituted pendant chains. Helv Chim Acta 1997. [DOI: 10.1002/hlca.19970800122] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schmid CL, Kempf C, Taubert A, Neuburger M, Zehnder M, Kaden TA, Bujno K, Bilewicz R. Metal Complexes with Macrocyclic Ligands. Part XLII. Tetraazamacrocyclic nickel(II) complexes with a methylthio or a methoxy pendant chain as model for cofactor F430. Helv Chim Acta 1996. [DOI: 10.1002/hlca.19960790410] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Oberholzer MR, Siegfried LC, Kaden TA. H+- and CN−-induced dissociation of Ni2+-complexes with tetra-N- substituted 1,4,8,11-tetraazacyclotetradecanes. Inorganica Chim Acta 1996. [DOI: 10.1016/0020-1693(96)05048-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Behle L, Neuburger M, Zehnder M, Kaden TA. Metal Complexes with Macrocyclic Ligands. Part XXXIX. Mono- and binuclear copper(II) complexes of a bridging bis[1, 4, 7-triazacyclononane]. Helv Chim Acta 1995. [DOI: 10.1002/hlca.19950780316] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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