1
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Queffélec C, Pati PB, Pellegrin Y. Fifty Shades of Phenanthroline: Synthesis Strategies to Functionalize 1,10-Phenanthroline in All Positions. Chem Rev 2024; 124:6700-6902. [PMID: 38747613 DOI: 10.1021/acs.chemrev.3c00543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
1,10-Phenanthroline (phen) is one of the most popular ligands ever used in coordination chemistry due to its strong affinity for a wide range of metals with various oxidation states. Its polyaromatic structure provides robustness and rigidity, leading to intriguing features in numerous fields (luminescent coordination scaffolds, catalysis, supramolecular chemistry, sensors, theranostics, etc.). Importantly, phen offers eight distinct positions for functional groups to be attached, showcasing remarkable versatility for such a simple ligand. As a result, phen has become a landmark molecule for coordination chemists, serving as a must-use ligand and a versatile platform for designing polyfunctional arrays. The extensive use of substituted phenanthroline ligands with different metal ions has resulted in a diverse array of complexes tailored for numerous applications. For instance, these complexes have been utilized as sensitizers in dye-sensitized solar cells, as luminescent probes modified with antibodies for biomaterials, and in the creation of elegant supramolecular architectures like rotaxanes and catenanes, exemplified by Sauvage's Nobel Prize-winning work in 2016. In summary, phen has found applications in almost every facet of chemistry. An intriguing aspect of phen is the specific reactivity of each pair of carbon atoms ([2,9], [3,8], [4,7], and [5,6]), enabling the functionalization of each pair with different groups and leading to polyfunctional arrays. Furthermore, it is possible to differentiate each position in these pairs, resulting in non-symmetrical systems with tremendous versatility. In this Review, the authors aim to compile and categorize existing synthetic strategies for the stepwise polyfunctionalization of phen in various positions. This comprehensive toolbox will aid coordination chemists in designing virtually any polyfunctional ligand. The survey will encompass seminal work from the 1950s to the present day. The scope of the Review will be limited to 1,10-phenanthroline, excluding ligands with more intracyclic heteroatoms or fused aromatic cycles. Overall, the primary goal of this Review is to highlight both old and recent synthetic strategies that find applicability in the mentioned applications. By doing so, the authors hope to establish a first reference for phenanthroline synthesis, covering all possible positions on the backbone, and hope to inspire all concerned chemists to devise new strategies that have not yet been explored.
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Affiliation(s)
| | | | - Yann Pellegrin
- Nantes Université, CEISAM UMR 6230, F-44000 Nantes, France
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2
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Ugwu DI, Conradie J. Metal complexes derived from bidentate ligands: Synthesis, catalytic and biological applications. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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3
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Gulledge ZZ, Pinson CC, Stovall AM, Dzeagu FO, Carrick JD. Chemoselective, osmium-free, dihydroxylation/oxidative cleavage of heteroaryl isoprenes by a contemporary Malaprade reaction. Org Biomol Chem 2022; 20:7916-7922. [PMID: 36173183 DOI: 10.1039/d2ob01643e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The methyl ketone is a central synthetic building block for the construction of advanced heteroaryl scaffolds and systems. Reactions, including oxidative cyclization strategies, are often predicated on efficient access to this ubiquitous moiety. In the context of arenes, standard approaches leveraging Markovnikov hydration/oxidation or oxidative cleavage of the C-C π bond often afford satisfactory performance. However, when the substrate contains an electron-deficient heteroaryl core, the traditional Malaprade reaction, and related oxidative-cleavage strategies, frequently result in diminished performance over carbon-based arenes. In this work we present the development and application of an oxidative cleavage reaction of various pyridinyl isoprenes towards accessing the downstream methyl ketone for utilization in advanced cyclizations for the preparation of soft-N-donor complexant scaffolds. This efficient protocol parallels the principles of Green chemistry by exchanging KMnO4 for the toxic OsO4 and offers the end-user an efficient, more environmentally friendly option for accessing heteroaryl methyl ketones in one hour of reaction time using potassium permanganate and sodium paraperiodate as a synergistically potent oxidative cleavage system. The wide substrate scope defined access to simple, as well as advanced heteroaryl methyl ketones. Method development, optimization, substrate scope, preliminary mechanistic observations, and a scale up reaction are delineated herein.
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Affiliation(s)
- Zachary Z Gulledge
- Department of Chemistry, Tennessee Technological University, Cookeville, TN 38505-0001, USA.
| | - Connor C Pinson
- Department of Chemistry, Tennessee Technological University, Cookeville, TN 38505-0001, USA.
| | - Alexander M Stovall
- Department of Chemistry, Tennessee Technological University, Cookeville, TN 38505-0001, USA.
| | - Fortune O Dzeagu
- Department of Chemistry, Tennessee Technological University, Cookeville, TN 38505-0001, USA.
| | - Jesse D Carrick
- Department of Chemistry, Tennessee Technological University, Cookeville, TN 38505-0001, USA.
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4
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Leahy CA, Drummond MJ, Vura-Weis J, Fout AR. Synthesis of a series of M(II) (M = Mn, Fe, Co) chloride complexes with both inter- and intra-ligand hydrogen bonding interactions. Dalton Trans 2021; 50:12088-12092. [PMID: 34519757 DOI: 10.1039/d1dt02585f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen bonding networks are vital for metallo-enzymes to function; however, modeling these systems is non-trivial. We report the synthesis of metal chloride (M = Mn, Fe, Co) complexes with intra- and inter-ligand hydrogen bonding interactions. The intra-ligand hydrogen bonds are shown to have a profound effect on the geometry of the metal center.
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Affiliation(s)
- Clare A Leahy
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, Illinois 61801, USA.
| | - Michael J Drummond
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, Illinois 61801, USA.
| | - Josh Vura-Weis
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, Illinois 61801, USA.
| | - Alison R Fout
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, Illinois 61801, USA.
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5
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Kagalwala HN, Deshmukh MS, Ramasamy E, Nair N, Zhou R, Zong R, McCormik L, Chen PA, Thummel RP. Revisiting Dinuclear Ruthenium Water Oxidation Catalysts: Effect of Bridging Ligand Architecture on Catalytic Activity. Inorg Chem 2021; 60:1806-1813. [PMID: 33464887 DOI: 10.1021/acs.inorgchem.0c03281] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An attractive catalytic pathway for the conversion of water to oxygen would involve two metal oxide centers combining in a constructive sense to make O═O. This prospect makes the study of certain dinuclear transition metal complexes particularly attractive. In this work, we describe the design and synthesis of two symmetrical bis-tridentate polypyridine ligands 6 and 12 that bind two RuII centers at a separation of 3.6 Å in 7 and 5.7 Å in 13. In the presence of CeIV at pH = 1, these systems oxidize water with the system having the more proximal metals being more reactive. In the case of the more proximal metal centers, the bridging ligand is a 3,6-disubstituted pyridazine which, under the influence of CeIV, cleaves into two [Ru(bpc)(pic)2CH3CN]+ fragments (14) which then function as the actual catalyst (bpc = 2,2'-bipyridine-6-carboxylate, pic = 4-methylpyridine). The second dinuclear catalyst contains a central pyrimidine ring which is less sensitive to oxidative decay and hence less reactive. Caution is advised in the use of CeIV as a sacrificial electron acceptor due to unexpected oxidative decay of the catalyst.
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Affiliation(s)
- Husain N Kagalwala
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
| | - Mahesh S Deshmukh
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
| | - Elamparuthi Ramasamy
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
| | - Neelima Nair
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
| | - Rongwei Zhou
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
| | - Ruifa Zong
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
| | - Laura McCormik
- Advanced Light Source, Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Po-An Chen
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
| | - Randolph P Thummel
- Department of Chemistry, University of Houston, 112 Fleming Building, Houston, Texas 77204-5003, United States
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6
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Braconi E, Cramer N. A Chiral Naphthyridine Diimine Ligand Enables Nickel-Catalyzed Asymmetric Alkylidenecyclopropanations. Angew Chem Int Ed Engl 2020; 59:16425-16429. [PMID: 32521105 DOI: 10.1002/anie.202006082] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Indexed: 12/17/2022]
Abstract
A novel class of chiral naphthyridine diimine ligands (NDI*) readily accessible from C2 -symmetric 2,6-di-(1-arylethyl)anilines is described. The utility of these ligands, particularly one with fluorinated aryl side arms, is demonstrated by a reductive Ni-catalyzed enantioselective alkylidene transfer reaction from 1,1-dichloroalkenes to olefins. This transformation provides direct access to a broad range of synthetically valuable alkylidenecyclopropanes in high yields and enantioselectivities.
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Affiliation(s)
- Elena Braconi
- Institute of Chemical Sciences and Engineering (ISIC), EPFL SB ISIC LCSA, BCH 4305, 1015, Lausanne, Switzerland
| | - Nicolai Cramer
- Institute of Chemical Sciences and Engineering (ISIC), EPFL SB ISIC LCSA, BCH 4305, 1015, Lausanne, Switzerland
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7
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Braconi E, Cramer N. A Chiral Naphthyridine Diimine Ligand Enables Nickel‐Catalyzed Asymmetric Alkylidenecyclopropanations. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elena Braconi
- Institute of Chemical Sciences and Engineering (ISIC)EPFL SB ISIC LCSA, BCH 4305 1015 Lausanne Switzerland
| | - Nicolai Cramer
- Institute of Chemical Sciences and Engineering (ISIC)EPFL SB ISIC LCSA, BCH 4305 1015 Lausanne Switzerland
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8
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Tong L, Duan L, Zhou A, Thummel RP. First-row transition metal polypyridine complexes that catalyze proton to hydrogen reduction. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213079] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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9
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Drummond MJ, Ford CL, Gray DL, Popescu CV, Fout AR. Radical Rebound Hydroxylation Versus H-Atom Transfer in Non-Heme Iron(III)-Hydroxo Complexes: Reactivity and Structural Differentiation. J Am Chem Soc 2019; 141:6639-6650. [PMID: 30969766 DOI: 10.1021/jacs.9b01516] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The characterization of high-valent iron centers in enzymes has been aided by synthetic model systems that mimic their reactivity or structural and spectral features. For example, the cleavage of dioxygen often produces an iron(IV)-oxo that has been characterized in a number of enzymatic and synthetic systems. In non-heme 2-oxogluterate dependent (iron-2OG) enzymes, the ferryl species abstracts an H-atom from bound substrate to produce the proposed iron(III)-hydroxo and caged substrate radical. Most iron-2OG enzymes perform a radical rebound hydroxylation at the site of the H-atom abstraction (HAA); however, recent reports have shown that certain substrates can be desaturated through the loss of a second H atom at a site adjacent to a heteroatom (N or O) for most native desaturase substrates. One proposed mechanism for the removal of the second H-atom involves a polar-cleavage mechanism (electron transfer-proton transfer) by the iron(III)-hydroxo, as opposed to a second HAA. Herein we report the synthesis and characterization of a series of iron complexes with hydrogen bonding interactions between bound aquo or hydroxo ligands and the secondary coordination sphere in ferrous and ferric complexes. Interconversion among the iron species is accomplished by stepwise proton or electron addition or subtraction, as well as H-atom transfer (HAT). The calculated bond dissociation free energies (BDFEs) of two ferric hydroxo complexes, differentiated by their noncovalent interactions and reactivity, suggest that neither complex is capable of activating even weak C-H bonds, lending further support to the proposed mechanism for desaturation in iron-2OG desaturase enzymes. Additionally, the ferric hydroxo species are differentiated by their reactivity toward performing a radical rebound hydroxylation of triphenylmethylradical. Our findings should encourage further study of the desaturase systems that may contain unique H-bonding motifs proximal to the active site that help bias substrate desaturation over hydroxylation.
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Affiliation(s)
- Michael J Drummond
- School of Chemical Sciences , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Courtney L Ford
- School of Chemical Sciences , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Danielle L Gray
- School of Chemical Sciences , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Codrina V Popescu
- Department of Chemistry , University of Saint Thomas , 2115 Summit Avenue , Saint Paul , Minnesota 55105 , United States
| | - Alison R Fout
- School of Chemical Sciences , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
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10
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Ekiz M, Tutar A, Ökten S, Bütün B, Koçyiğit ÜM, Taslimi P, Topçu G. Synthesis, characterization, and SAR of arylated indenoquinoline-based cholinesterase and carbonic anhydrase inhibitors. Arch Pharm (Weinheim) 2018; 351:e1800167. [DOI: 10.1002/ardp.201800167] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/07/2018] [Accepted: 07/11/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Makbule Ekiz
- Faculty of Art and Science, Department of Chemistry; Sakarya University; Serdivan Turkey
| | - Ahmet Tutar
- Faculty of Art and Science, Department of Chemistry; Sakarya University; Serdivan Turkey
| | - Salih Ökten
- Faculty of Education, Department of Maths and Science Education; Kırıkkale University; Kirikkale Turkey
| | - Burcu Bütün
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; Bezmialem Vakif University; Istanbul Turkey
| | - Ümit M. Koçyiğit
- Vocational School of Health Services; Cumhuriyet University; Sivas Turkey
| | - Parham Taslimi
- Faculty of Science, Department of Chemistry; Ataturk University; Erzurum Turkey
| | - Gülaçtı Topçu
- Faculty of Pharmacy, Department of Pharmacognosy/Phytochemistry; Bezmialem Vakif University; Istanbul Turkey
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11
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Çelik Í, Akkurt M, Ekiz M, Tutar A, Ökten S, Ersanlı CC. 11-[Bis(trimethylsilyl)amino]-2,4-bis(trimethylsilyl)-7,8,9,10-tetrahydro-6H-cyclohepta[1,2-b]quinoline. IUCRDATA 2017. [DOI: 10.1107/s2414314617008884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C26H48N2Si4, the cycloheptane ring adopts a chair conformation, while the quinolinyl ring system is almost planar [maximum deviation = 0.040 (3) Å for one of the C atoms carrying a Me3Si group]. In the crystal, in the absence of classical hydrogen bonding, the packing is dominated by van der Waals forces. One of the N-bound trimethylsilyl groups is disordered by rotation about the C—SiMe3bond, and was modelled over two sets of sites in the ratio 0.873 (8):0.127 (8).
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12
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Petzold H, Djomgoue P, Hörner G, Heider S, Lochenie C, Weber B, Rüffer T, Schaarschmidt D. Spin state variability in Fe2+ complexes of substituted (2-(pyridin-2-yl)-1,10-phenanthroline) ligands as versatile terpyridine analogues. Dalton Trans 2017; 46:6218-6229. [DOI: 10.1039/c7dt00422b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe2+ spin crossover complexes [Fe(L)2]2+ (L = substituted (pyridin-2-yl)-1,10-phenanthroline) were prepared and SCO properties were investigated in solution and in the solid state by an experiment and in silico.
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Affiliation(s)
- Holm Petzold
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | - Paul Djomgoue
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | | | - Silvio Heider
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | - Charles Lochenie
- Institut de science et d'ingénierie supramoléculaires (ISIS)
- Université de Strasbourg & CNRS
- 67000 Strasbourg
- France
| | - Birgit Weber
- Anorganische Chemie II
- Universität Bayreuth
- 95440 Bayreuth
- Germany
| | - Tobias Rüffer
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
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13
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Schnaubelt L, Petzold H, Speck JM, Dmitrieva E, Rosenkranz M, Korb M. Redox properties and electron transfer in a triarylamine-substituted HS-Co2+/LS-Co3+ redox couple. Dalton Trans 2017; 46:2690-2698. [DOI: 10.1039/c6dt04748c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox and electron transfer properties of a triarylamine decorated HS-Co2+/LS-Co3+ redox couple were investigated by coupled EPR/UV-vis-NIR spectroelectrochemistry and 1H NMR spectroscopy.
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Affiliation(s)
- Linda Schnaubelt
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | - Holm Petzold
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | - J. Matthäus Speck
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
| | - Evgenia Dmitrieva
- Center of Spectroelectrochemistry
- Leibniz Institute for Solid State and Materials Research (IFW Dresden)
- 01069 Dresden
- Germany
| | - Marco Rosenkranz
- Center of Spectroelectrochemistry
- Leibniz Institute for Solid State and Materials Research (IFW Dresden)
- 01069 Dresden
- Germany
| | - Marcus Korb
- TU Chemnitz
- Institut für Chemie
- Anorganische Chemie
- 09111 Chemnitz
- Germany
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14
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Ekiz M, Tutar A, Ökten S. Convenient synthesis of disubstituted tacrine derivatives via electrophilic and copper induced reactions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Guo J, Zhang C, Bi J, Zhang H, Bai C, Hu Y, Zhang X. Cobalt complexes bearing pyridine-imino ligands with bulky aryl substituents: Synthesis, characterization, and 1,3-butadiene polymerization behaviors. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Bis(iminopyridyl)phthalazine as a sterically hindered compartmental ligand for an M2 (M=Co, Ni, Fe, Zn) centre; Applications in ethylene oligomerisation. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Zhou YY, Hartline DR, Steiman TJ, Fanwick PE, Uyeda C. Dinuclear Nickel Complexes in Five States of Oxidation Using a Redox-Active Ligand. Inorg Chem 2014; 53:11770-7. [PMID: 25337719 DOI: 10.1021/ic5020785] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- You-Yun Zhou
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Douglas R. Hartline
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Talia J. Steiman
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Phillip E. Fanwick
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Christopher Uyeda
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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18
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Friedländer reaction/quinoxalinone–benzimidazole rearrangement sequence: expeditious entry to diverse quinoline derivatives with the benzimidazole moieties. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Chou CC, Hu FC, Wu KL, Duan T, Chi Y, Liu SH, Lee GH, Chou PT. 4,4′,5,5′-Tetracarboxy-2,2′-bipyridine Ru(II) Sensitizers for Dye-Sensitized Solar Cells. Inorg Chem 2014; 53:8593-9. [DOI: 10.1021/ic501178f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Chun-Cheng Chou
- Department of Chemistry
and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Fa-Chun Hu
- Department of Chemistry
and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Kuan-Lin Wu
- Department of Chemistry
and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Tainan Duan
- Department of Chemistry
and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department of Chemistry
and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shih-Hung Liu
- Department
of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
| | - Gene-Hsiang Lee
- Department
of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
| | - Pi-Tai Chou
- Department
of Chemistry and Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 10617, Taiwan
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20
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Siewert I, Sietzen M, Dechert S, Demeshko S. Di‐ and Trinuclear Zinc and Cobalt Complexes and Their Reactivity towards Dioxygen. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Inke Siewert
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstr. 4, 37077 Göttingen, Germany, Fax: +49‐551‐3933373, http://www.inkesiewert.de
| | - Malte Sietzen
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstr. 4, 37077 Göttingen, Germany, Fax: +49‐551‐3933373, http://www.inkesiewert.de
| | - Sebastian Dechert
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstr. 4, 37077 Göttingen, Germany, Fax: +49‐551‐3933373, http://www.inkesiewert.de
| | - Serhiy Demeshko
- Institute of Inorganic Chemistry, Georg August University Göttingen, Tammannstr. 4, 37077 Göttingen, Germany, Fax: +49‐551‐3933373, http://www.inkesiewert.de
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21
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Urgin K, Aubé C, Pipelier M, Blot V, Thobie-Gautier C, Sengmany S, Lebreton J, Léonel E, Dubreuil D, Condon S. Pd-Catalyzed Chemoselective Cross-Coupling Reaction of Triaryl- or Triheteroarylbismuth Compounds with 3,6-Dihalopyridazines. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200977] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Ye W, Zhao M, Yu Z. Ruthenium(II) Pyrazolyl-Pyridyl-Oxazolinyl Complex Catalysts for the Asymmetric Transfer Hydrogenation of Ketones. Chemistry 2012; 18:10843-6. [DOI: 10.1002/chem.201201703] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 06/13/2012] [Indexed: 11/08/2022]
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Tong L, Wang Y, Duan L, Xu Y, Cheng X, Fischer A, Ahlquist MSG, Sun L. Water oxidation catalysis: influence of anionic ligands upon the redox properties and catalytic performance of mononuclear ruthenium complexes. Inorg Chem 2012; 51:3388-98. [PMID: 22360662 DOI: 10.1021/ic201348u] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aiming at highly efficient molecular catalysts for water oxidation, a mononuclear ruthenium complex Ru(II)(hqc)(pic)(3) (1; H(2)hqc = 8-hydroxyquinoline-2-carboxylic acid and pic = 4-picoline) containing negatively charged carboxylate and phenolate donor groups has been designed and synthesized. As a comparison, two reference complexes, Ru(II)(pdc)(pic)(3) (2; H(2)pdc = 2,6-pyridine-dicarboxylic acid) and Ru(II)(tpy)(pic)(3) (3; tpy = 2,2':6',2"-terpyridine), have also been prepared. All three complexes are fully characterized by NMR, mass spectrometry (MS), and X-ray crystallography. Complex 1 showed a high efficiency toward catalytic water oxidation either driven by chemical oxidant (Ce(IV) in a pH 1 solution) with a initial turnover number of 0.32 s(-1), which is several orders of magnitude higher than that of related mononuclear ruthenium catalysts reported in the literature, or driven by visible light in a three-component system with [Ru(bpy)(3)](2+) types of photosensitizers. Electrospray ionization MS results revealed that at the Ru(III) state complex 1 undergoes ligand exchange of 4-picoline with water, forming the authentic water oxidation catalyst in situ. Density functional theory (DFT) was employed to explain how anionic ligands (hqc and pdc) facilitate the 4-picoline dissociation compared with a neutral ligand (tpy). Electrochemical measurements show that complex 1 has a much lower E(Ru(III)/Ru(II)) than that of reference complex 2 because of the introduction of a phenolate ligand. DFT was further used to study the influence of anionic ligands upon the redox properties of mononuclear aquaruthenium species, which are postulated to be involved in the catalysis cycle of water oxidation.
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Affiliation(s)
- Lianpeng Tong
- Department of Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
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Dogan HZ, Sengul A, Coles SJ. 1-[6-(6-Acetyl-pyridin-2-yl)pyridin-2-yl]ethanone. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o1295. [PMID: 21754701 PMCID: PMC3120622 DOI: 10.1107/s160053681101556x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Accepted: 04/25/2011] [Indexed: 11/10/2022]
Abstract
In the title compound, C14H12N2O2, the asymmetric unit comprises one half-molecule with an inversion center between the pyridine rings. The rings are trans coplanar with the acetyl groups deviating slightly from the mean planes, making a dihedral angle of 4.63 (4)°. In the crystal, molecules are linked by weak intermolecular C—H⋯O hydrogen bonds, forming a supramolecular sheet parallel to (100).
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Synthetic utility of a heterocyclic o-aminoaldehyde: synthesis of pyrazolopyridopyrimidines, pyrazolonaphthyridines, and pyrazolopyrimidonaphthyridinones. MONATSHEFTE FUR CHEMIE 2011. [DOI: 10.1007/s00706-010-0443-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shiri M, Zolfigol MA, Kruger HG, Tanbakouchian Z. Friedländer Annulation in the Synthesis of Azaheterocyclic Compounds. ADVANCES IN HETEROCYCLIC CHEMISTRY 2011. [DOI: 10.1016/b978-0-12-385464-3.00002-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Bencini A, Lippolis V. 1,10-Phenanthroline: A versatile building block for the construction of ligands for various purposes. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2010.04.008] [Citation(s) in RCA: 288] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ibrahim MAM. Synthesis and characterization of new chromeno[2,3-b]pyridines via the Friedländer reactions of 8-allyl-2-amino-4-oxo-4H-chromene-3-carboxaldehyde. ACTA ACUST UNITED AC 2010. [DOI: 10.5155/eurjchem.1.2.124-128.75] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Madhu V, Ekambaram B, Shimon LJW, Diskin Y, Leitus G, Neumann R. Structural diversity in manganese, iron and cobalt complexes of the ditopic 1,2-bis(2,2′-bipyridyl-6-yl)ethyne ligand and observation of epoxidation and catalase activity of manganese compounds. Dalton Trans 2010; 39:7266-75. [DOI: 10.1039/b925129d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bera JK, Sadhukhan N, Majumdar M. 1,8‐Naphthyridine Revisited: Applications in Dimetal Chemistry. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900312] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jitendra K. Bera
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
| | - Nabanita Sadhukhan
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
| | - Moumita Majumdar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India, Fax: +91‐512‐259‐7436
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Ligiero CB, Visentin LC, Giacomini R, Filgueiras CA, Miranda PC. 2,3,5,6-Tetra(pyrazin-2-yl)pyrazine: a novel bis-bidentate, bis-tridentate chelator. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.04.098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Singh AN, Thummel RP. 1,5-Naphthyridine As a New Linker for the Construction of Bridging Ligands and Their Corresponding Ru(II) Complexes. Inorg Chem 2009; 48:6459-70. [DOI: 10.1021/ic900400t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ajay N. Singh
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
| | - Randolph P. Thummel
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
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Marco-Contelles J, Pérez-Mayoral E, Samadi A, Carreiras MDC, Soriano E. Recent Advances in the Friedländer Reaction. Chem Rev 2009; 109:2652-71. [DOI: 10.1021/cr800482c] [Citation(s) in RCA: 505] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- José Marco-Contelles
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - Elena Pérez-Mayoral
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - Abdelouahid Samadi
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - María do Carmo Carreiras
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
| | - Elena Soriano
- Laboratorio de Radicales Libres y Química Computacional (IQOG, CSIC), Madrid, Spain, Departamento de Química Inorgánica y Química Técnica, Facultad de Ciencias, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain, and iMed.UL, Research Institute for Medicines and Pharmaceutical Sciences, Faculty of Pharmacy, University of Lisbon, Av. Forcas Armadas, 1600-083 Lisbon, Portugal
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Sala X, Romero I, Rodríguez M, Escriche L, Llobet A. Molekulare Katalysatoren für die Oxidation von Wasser zu Disauerstoff. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200802659] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sala X, Romero I, Rodríguez M, Escriche L, Llobet A. Molecular Catalysts that Oxidize Water to Dioxygen. Angew Chem Int Ed Engl 2009; 48:2842-52. [DOI: 10.1002/anie.200802659] [Citation(s) in RCA: 376] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Muckerman JT, Polyansky DE, Wada T, Tanaka K, Fujita E. Water oxidation by a ruthenium complex with noninnocent quinone ligands: possible formation of an O-O bond at a low oxidation state of the metal. Inorg Chem 2008; 47:1787-802. [PMID: 18330970 DOI: 10.1021/ic701892v] [Citation(s) in RCA: 191] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tanaka and co-workers reported a novel dinuclear Ru complex, [Ru2(OH)2(3,6-Bu2Q)2(btpyan)](SbF6)2 (3,6-Bu2Q = 3,6-di tert-butyl-1,2-benzoquinone, btpyan = 1,8-bis(2,2':6',2''-terpyrid-4'-yl)anthracene), that contains redox active quinone ligands and has an excellent electrocatalytic activity for water oxidation when immobilized on an indium-tin-oxide electrode (Inorg. Chem., 2001, 40, 329-337). The novel features of the dinuclear and related mononuclear Ru species with quinone ligands, and comparison of their properties to those of the Ru analogues with the bpy ligand (bpy = 2,2'-bipyridine) replacing quinone, are summarized here together with new theoretical and experimental results that show striking features for both the dinuclear and mononuclear species. The identity and oxidation state of key mononuclear species, including the previously reported oxyl radical, have been reassigned. Our gas-phase theoretical calculations indicate that the Tanaka Ru-dinuclear catalyst seems to maintain predominantly Ru(II) centers while the quinone ligands and water moiety are involved in redox reactions throughout the entire catalytic cycle for water oxidation. Our theoretical study identifies [Ru2(O2(-))(Q(-1.5))2(btpyan)](0) as a key intermediate and the most reduced catalyst species that is formed by removal of all four protons before four-electron oxidation takes place. While our study toward understanding the complicated electronic and geometric structures of possible intermediates in the catalytic cycle is still in progress, the current status and new directions for kinetic and mechanistic investigations, and key issues and challenges in water oxidation with the Tanaka catalyst (and its analogues with Cl(-) or NO(2-)substituted quinones and a species with a xanthene bridge instead an antheracene) are discussed.
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Affiliation(s)
- James T Muckerman
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA.
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Deng Z, Tseng HW, Zong R, Wang D, Thummel R. Preparation and study of a family of dinuclear Ru(II) complexes that catalyze the decomposition of water. Inorg Chem 2008; 47:1835-48. [PMID: 18330974 DOI: 10.1021/ic7010875] [Citation(s) in RCA: 160] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An approach is developed for the four-electron oxidation of water to provide dioxygen that involves the juxtaposition of two Ru(II) centers such that a metal-bound water molecule might interact with one or both of the metals. The key element in this approach is an appropriate bridging ligand that will hold the metal assembly intact through the full redox cycle. Various synthetic approaches to such ligands are described with the ultimate preparation of four closely related bis-tridentate polypyridine-type systems in which the bridging and distal portions of the ligand are varied. All of these ligands self-assemble with two Ru(II) centers bridged by a Cl ion in the equatorial plane and four axial monodentate substituted pyridines or N-methylimidazoles to form the well-organized catalyst complexes. These complexes are characterized by their distinctive (1)H NMR spectra as well as an X-ray structure of one representative species. The photophysical and electrochemical features of these complexes are consistent with electronegativity and delocalization effects in the equatorial and axial ligands. Of the 14 complexes studied, all but 2, which each contain four axial N-methylimidazole ligands, catalyze the decomposition of water in the presence of excess Ce(IV) as a sacrificial oxidant at pH = 1. Both the rates of oxygen evolution and the catalyst turnover numbers (TNs) are measured. For the active catalysts, the relative rates vary from 1 to 51 and the TNs measure from 80 to 689. Various analytical methods for making these measurements are discussed, and it is found that there is an approximately linear relationship between the rate and TN. Future work will involve optimization of these systems and studies aimed at a better understanding of the mechanism.
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Affiliation(s)
- Zeping Deng
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003, USA
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Zong R, Zhou H, Thummel RP. Direct Access to 4-Carboxy-1,8-naphthyridines and Related Compounds through Pfitzinger-Type Chemistry. J Org Chem 2008; 73:4334-7. [DOI: 10.1021/jo800456r] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruifa Zong
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
| | - Hui Zhou
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
| | - Randolph P. Thummel
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
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Synthesis of new bis(2-[1,8]naphthyridinyl) bridging ligands with multidentate binding sites. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Romero I, Rodríguez M, Sens C, Mola J, Rao Kollipara M, Francàs L, Mas-Marza E, Escriche L, Llobet A. Ru Complexes That Can Catalytically Oxidize Water to Molecular Dioxygen. Inorg Chem 2008; 47:1824-34. [DOI: 10.1021/ic700911y] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Isabel Romero
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Montserrat Rodríguez
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Cristina Sens
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Joaquim Mola
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Mohan Rao Kollipara
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Laia Francàs
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Elena Mas-Marza
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Lluís Escriche
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
| | - Antoni Llobet
- Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain, Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, E-08193 Barcelona, Spain, and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, E-43007 Tarragona, Spain
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Zhang G, Zong R, Tseng HW, Thummel RP. Ru(II) Complexes of Tetradentate Ligands Related to 2,9-Di(pyrid-2‘-yl)-1,10-phenanthroline. Inorg Chem 2008; 47:990-8. [DOI: 10.1021/ic701798v] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gang Zhang
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
| | - Ruifa Zong
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
| | - Huan-Wei Tseng
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
| | - Randolph P. Thummel
- Department of Chemistry, 136 Fleming Building, University of Houston, Houston, Texas 77204-5003
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Krapcho AP, Lanza JB. IMPROVED SYNTHESIS OF 2-CHLORO- AND 2, 9-DICHLORO-1, 10-PHENANTHROLINES. ORG PREP PROCED INT 2007. [DOI: 10.1080/00304940709458644] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chinchilla R, Najera C. The Sonogashira Reaction: A Booming Methodology in Synthetic Organic Chemistry. Chem Rev 2007; 107:874-922. [PMID: 17305399 DOI: 10.1021/cr050992x] [Citation(s) in RCA: 2264] [Impact Index Per Article: 133.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafael Chinchilla
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Facultad de Ciencias, Apartado 99, 03080 Alicante, Spain.
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Wang J, Onions S, Pilkington M, Stoeckli-Evans H, Halfpenny JC, Wallis JD. Metal catalyzed rearrangement of a 2,2′-bipyridine Schiff-base ligand to a quaterpyridine-type complex. Chem Commun (Camb) 2007:3628-30. [PMID: 17728875 DOI: 10.1039/b705555b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Co(II) quaterpyridine-type complex has been prepared via a one-pot transformation of a 2,2'-bipyridine Schiff-base ligand in the presence of a Lewis acidic metal salt.
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Affiliation(s)
- Jian Wang
- Department of Chemistry, Brock University, 500 Glenridge Ave, St Catherines, Ontario, Canada L2S 3A1
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Synthesis of a novel ditopic ligand incorporating directly bonded 1,10-phenanthroline and 2,2′:6′,2″-terpyridine units. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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