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Weisheim E, Neumann B, Stammler HG, Mitzel NW. Dendrimers with 1, 3, 5-Trisilacyclohexane as Core Unit. Z Anorg Allg Chem 2016. [DOI: 10.1002/zaac.201500812] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2
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Leu BM, Sage JT, Silvernail NJ, Scheidt WR, Alatas A, Alp EE, Sturhahn W. Bulk Modulus of a Protein Active-Site Mimic. J Phys Chem B 2011; 115:4469-73. [DOI: 10.1021/jp112007z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bogdan M. Leu
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, United States
| | - J. Timothy Sage
- Department of Physics, Northeastern University, Boston, Massachusetts, United States
| | - Nathan J. Silvernail
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, United States
| | - W. Robert Scheidt
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, United States
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, United States
| | - Ercan E. Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, United States
| | - Wolfgang Sturhahn
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois, United States
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Jahier C, Coustou MF, Cantuel M, McClenaghan ND, Buffeteau T, Cavagnat D, Carraro M, Nlate S. Optically Active Tripodal Dendritic Polyoxometalates: Synthesis, Characterization and Their Use in Asymmetric Sulfide Oxidation with Hydrogen Peroxide. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201001111] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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4
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Chervonova UV, Gruzdev MS, Kolker AM, Manin NG, Domracheva NE. Iron(III) complexes on the basis of azomethine derived from 4,4′-dodecyloxybenzoyloxybenzoyl-4-oxy-2-hydroxybenzaldehyde. RUSS J GEN CHEM+ 2010. [DOI: 10.1134/s1070363210100130] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Affiliation(s)
- George R. Newkome
- Departments of Polymer Science and Chemistry, University of Akron, Akron, Ohio 44325-4717, and Department of Chemistry, Hiram College, Hiram, Ohio 44234
| | - Carol Shreiner
- Departments of Polymer Science and Chemistry, University of Akron, Akron, Ohio 44325-4717, and Department of Chemistry, Hiram College, Hiram, Ohio 44234
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Jahier C, Felpin FX, Méliet C, Agbossou-Niedercorn F, Hierso JC, Nlate S. 1,1â²-Binaphthyl-2-methylpyridinium-Based Peroxophosphotungstate Salts: Synthesis, Characterization, and Their Use as Oxidation Catalysts. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900682] [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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7
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Hammerich O, Hansen T, Thorvildsen A, Christensen JB. Electrochemical One-Electron Oxidation of Low-Generation Polyamidoamine-Type Dendrimers with a 1,4-Phenylenediamine Core. Chemphyschem 2009; 10:1805-24. [DOI: 10.1002/cphc.200900233] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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8
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Affiliation(s)
- Wouter Maes
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, Fax: +32‐16‐327990
| | - Wim Dehaen
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium, Fax: +32‐16‐327990
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Jahier C, Plault L, Nlate S. Encapsulation of Polyoxotungstate into Dendrimers by Ionic Bonding and Their Use As Oxidation Catalyst. Isr J Chem 2009. [DOI: 10.1560/ijc.49.1.109] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Zeitouny J, Aurisicchio C, Bonifazi D, De Zorzi R, Geremia S, Bonini M, Palma CA, Samorì P, Listorti A, Belbakra A, Armaroli N. Photoinduced structural modifications in multicomponent architectures containing azobenzene moieties as photoswitchable cores. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b905287a] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Ruzié C, Krayer M, Balasubramanian T, Lindsey JS. Tailoring a Bacteriochlorin Building Block with Cationic, Amphipathic, or Lipophilic Substituents. J Org Chem 2008; 73:5806-20. [DOI: 10.1021/jo800736c] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Christian Ruzié
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204
| | - Michael Krayer
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204
| | | | - Jonathan S. Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204
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12
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O’Donoghue D, Magner E. The electrochemical response of microperoxidase in non-aqueous solvents. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2007.04.117] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Hardy JG, Ashworth I, Brennan C, Smith DK. Dendritic receptors designed to bind polyanions in both organic and aqueous media. Org Biomol Chem 2007; 5:900-6. [PMID: 17340005 DOI: 10.1039/b618063a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports the synthesis of dendrons containing a spermine unit at their focal point. The dendritic branching is based on l-lysine building blocks, and has terminal oligo(ethyleneglycol) units on the surface. As a consequence of the solubilising surface groups, these dendrons have high solubility in solvents with widely different polarities (e.g., dichloromethane and water). The protonated spermine unit at the focal point is an effective anion binding fragment and, as such, these dendrons are able to bind to polyanions. This paper demonstrates that polyanions can be bound in both dichloromethane (using a dye solubilisation assay) and in water (competitive ATP binding assay). In organic media the dendritic branching appears to have a pro-active effect on the solubilisation of the dye, with more dye being solubilised by higher generations of dendron. On the other hand, in water the degree of branching has no impact on the anion binding process. We propose that in this case, the spermine unit is effectively solvated by the bulk solvent and the dendritic branching does not need to play an active role in assisting solubility. Dendritic effects on anion binding have therefore been elucidated in different solvents. The dendritic branching plays a pro-active role in providing the anion binding unit with good solubility in apolar solvent media.
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Affiliation(s)
- John G Hardy
- Department of Chemistry, University of York, York, UK YO10 5DD
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Nlate S, Plault L, Astruc D. Peripheral functionalisation of dendrimers with polyoxotungstate complexes assembled by ionic bonding and their use as oxidation catalysts: Influence of the tether length. NEW J CHEM 2007. [DOI: 10.1039/b616288f] [Citation(s) in RCA: 30] [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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15
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Melin F, Choua S, Bernard M, Turek P, Weiss J. Built-in Axial Base Binding on Phenanthroline-Strapped Zinc(II) and Iron(III) Porphyrins. Inorg Chem 2006; 45:10750-7. [PMID: 17173432 DOI: 10.1021/ic0611185] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In addition to the need for functional models of cytochrome c oxidase, structural models are still required for a better understanding of the small reorganizations occurring during the catalytic cycle. An efficient synthetic approach has been designed to prepare several phenanthroline-strapped porphyrins, two of them bearing two pendant imidazoles. These built-in bases are both potentially able to act as axial bases for the metalloporphyrin and as complementary ligands for copper if necessary. Diamagnetic zinc(II) was used to demonstrate that the distal/proximal selectivity demonstrated by exogenic bases binding studies can be extended to the coordination of iron(III). Combination of EPR and paramagnetic 1H NMR shows that the imidazole binding on the zinc species can be further extended to the iron(III) species in dilute conditions.
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Affiliation(s)
- Frédéric Melin
- Chimie des Ligands à Architecture Contrôlée, LC3 CNRS-ULP, Institut Le Bel, 4 rue Blaise Pascal, 67070 Strasbourg Cedex, France
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Kovacs C, Hirsch A. A New Type of Dendritic [60]Fullerene–Metallo-tetraphenylporphyrin Diads (M = Zn, Co). European J Org Chem 2006. [DOI: 10.1002/ejoc.200600259] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Nlate S, Plault L, Astruc D. Synthesis of 9- and 27-Armed Tetrakis(diperoxotungsto)phosphate-Cored Dendrimers and Their Use as Recoverable and Reusable Catalysts in the Oxidation of Alkenes, Sulfides, and Alcohols with Hydrogen Peroxide. Chemistry 2006; 12:903-14. [PMID: 16196068 DOI: 10.1002/chem.200500556] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A series of 3- and 9-armed dendrons, functionalized at the focal position to quaternary ammonium salts, were synthesized and characterized. The reaction of these ammonium dendrons with the heteropolyacid H(3)PW(12)O(40) in the presence of hydrogen peroxide led to a family of 9- and 27-armed air-stable polyoxometalate (POM)-cored dendrimers containing a catalytically active trianionic POM species [PO(4)[WO(O(2))(2)](4)](3-) in the core. These POM-cored dendrimers are air-stable, efficient, recoverable, and reusable catalysts for the selective oxidation of alkenes to epoxides, sulfides to sulfones, and alcohols to ketones, in an aqueous/CDCl(3) biphasic system with hydrogen peroxide as the primary oxidant. A study of the countercation effects showed that the dendritic structure increased the stability of the POM species and facilitated the recovery of the catalyst up to the eighth cycle, whereas the increased bulkiness around the POM center led to a negative kinetic dendritic effect. Within the 9-armed POM-cored dendrimer series, the reaction kinetics were susceptible to the nature of the peripheral endgroups. Indeed, the 9-armed n-propyl-terminated POM-cored dendrimer was identified as the most active catalyst. In addition, the results obtained with POM-cored dendrimers versus tetraalkylammonium POMs ([[n-(C(8)H(17))(3)NCH(3)](+)](3)[PO(4)[WO(O(2))(2)](4)](3-) and [[nC(18)H(37)(75 %) + nC(16)H(33)(25 %)](2)N(CH(3))(2)](+)](3)[PO(4)[WO(O(2))(2)](4)](3-)) clearly reveal that the dendritic structures are more stable than their nondendritic counterparts. After the reactions were complete, the dendrimer catalysts were easily recovered and recycled without a discernable lost of activity, whereas attempts to recover tetraalkylammonium POMs gave unsatisfactory results. A significant advantage of the dendritic structures is that they enable the recovery and recyclability of the POM catalyst, in contrast to the other tetraalkylammonium POMs.
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Affiliation(s)
- Sylvain Nlate
- Nanosciences and Catalysis Group, LCOO, UMR CNRS No 5802, University Bordeaux I, 351 Cours de la Libération, Talence, France.
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Mitchell-Koch JT, Padden KM, Borovik AS. Modification of immobilized metal complexes toward the design and synthesis of functional materials for nitric oxide delivery. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21314] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Bonifazi D, Accorsi G, Armaroli N, Song F, Palkar A, Echegoyen L, Scholl M, Seiler P, Jaun B, Diederich F. Oligoporphyrin Arrays Conjugated to [60]Fullerene: Preparation, NMR Analysis, and Photophysical and Electrochemical Properties. Helv Chim Acta 2005. [DOI: 10.1002/hlca.200590144] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Syntheses and nickel coordination properties of cyclen substituted with mixed stilbene/poly(ethylene glycol) dendritic arms. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.20960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Vasylyev M, Astruc D, Neumann R. Dendritic Phosphonates and thein situ Assembly of Polyperoxophosphotungstates: Synthesis and Catalytic Epoxidation of Alkenes with Hydrogen Peroxide. Adv Synth Catal 2005. [DOI: 10.1002/adsc.200404207] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Felber B, Diederich F. Synthesis of Dendritic Metalloporphyrins withDistal H-Bond Donors as Model Systems for Hemoglobin. Helv Chim Acta 2005. [DOI: 10.1002/hlca.200490288] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Joester D, Gramlich V, Diederich F. Amphiphilic Dendrimers with Heteroleptic Bis([2,2?: 6?,2?]terpyridine)-Ruthenium(II) Cores. Helv Chim Acta 2004. [DOI: 10.1002/hlca.200490262] [Citation(s) in RCA: 13] [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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Brewis M, Helliwell M, McKeown NB. Phthalocyanine-centred and naphthalocyanine-centred aryl ether dendrimers with oligo(ethyleneoxy) surface groups. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00436-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rietveld IB, Kim E, Vinogradov SA. Dendrimers with tetrabenzoporphyrin cores: near infrared phosphors for in vivo oxygen imaging. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00432-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Diederich F, Felber B. Supramolecular chemistry of dendrimers with functional cores. Proc Natl Acad Sci U S A 2002; 99:4778-81. [PMID: 11891306 PMCID: PMC122667 DOI: 10.1073/pnas.052568099] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Dendritic microenvironments are analogous to local environments created within protein superstructures. Correspondingly, properties of functional cores such as molecular recognition and catalytic activity are profoundly influenced by the surrounding dendritic branches.
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Affiliation(s)
- François Diederich
- Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule-Hönggerberg, HCI, CH-8093 Zürich, Switzerland.
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Weyermann P, Diederich F. Dendritic Iron Porphyrins with a Tethered Axial Ligand as New Model Compounds for Heme Monooxygenases. Helv Chim Acta 2002. [DOI: 10.1002/1522-2675(200202)85:2<599::aid-hlca599>3.0.co;2-v] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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