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Molecular materials and devices: developing new functional systems based on the coordination chemistry approach

Toma,Henrique E.
Fonte: Sociedade Brasileira de Química Publicador: Sociedade Brasileira de Química
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2003 EN
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At the onset of the nanotechnology age, molecular designing of materials and single molecule studies are opening wide possibilities of using molecular systems in electronic and photonic devices, as well as in technological applications based on molecular switching or molecular recognition. In this sense, inorganic chemists are privileged by the possibility of using the basic strategies of coordination chemistry to build up functional supramolecular materials, conveying the remarkable chemical properties of the metal centers and the characteristics of the ancillary ligands. Coordination chemistry also provides effective self-assembly strategies based on specific metal-ligand affinity and stereochemistry. Several molecular based materials, derived from inorganic and metal-organic compounds are focused on this article, with emphasis on new supramolecular porphyrins and porphyrazines, metal-clusters and metal-polyimine complexes. Such systems are also discussed in terms of their applications in catalysis, sensors and molecular devices.

The coordination chemistry at gold nanoparticles

Toma,Henrique E.; Zamarion,Vitor M.; Toma,Sergio H.; Araki,Koiti
Fonte: Sociedade Brasileira de Química Publicador: Sociedade Brasileira de Química
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2010 EN
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In gold nanoparticles the surface metal atoms play a major role, determining their chemical and physical properties by interacting with donor-acceptor species or ligands in a similar way as the related metal complexes. In addition, coherent oscillations of the metal electrons in resonance with the frequency of the exciting light give rise to localized surface plasmons responsible for an enhancement of the local electric field and SERS effect, allowing a wide range of applications in chemistry, biology and nanotechnology. Multifunctional bridging ligands can be employed for simultaneously binding metal ions and surface atoms. The attractive point of this approach is the possibility of exploiting the charge controlled stabilization by the metal complexes, while imparting new characteristics and properties to the modified nanoparticles. As a matter of fact, a new, exciting field of coordination chemistry can be envisaged, combining metal nanoparticles and metal complexes, in the light of supramolecular and surface plasmon resonance effects.

Dihydrogen complexes as prototypes for the coordination chemistry of saturated molecules

Kubas, Gregory J.
Fonte: National Academy of Sciences Publicador: National Academy of Sciences
Tipo: Artigo de Revista Científica
EN
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The binding of a dihydrogen molecule (H2) to a transition metal center in an organometallic complex was a major discovery because it changed the way chemists think about the reactivity of molecules with chemically “inert” strong bonds such as HH and CH. Before the seminal finding of side-on bonded H2 in W(CO)3(PR3)2(H2), it was generally believed that H2 could not bind to another atom in stable fashion and would split into two separate H atoms to form a metal dihydride before undergoing chemical reaction. Metal-bound saturated molecules such as H2, silanes, and alkanes (σ-complexes) have a chemistry of their own, with surprisingly varied structures, bonding, and dynamics. H2 complexes are of increased relevance for H2 production and storage in the hydrogen economy of the future.

Developments in the Coordination Chemistry of Europium(II)

Garcia, Joel; Allen, Matthew J.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
EN
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Recent advances in the coordination chemistry of Eu2+ are reviewed. Common synthetic routes for generating discrete Eu2+-containing complexes reported since 2000 are summarized, followed by a description of the reactivity of these complexes and their applications in reduction chemistry, polymerization, luminescence, and as contrast agents for magnetic resonance imaging. Rapid development of the coordination chemistry of Eu2+ has led to an upsurge in the utilization of Eu2+-containing complexes in synthetic chemistry, materials science, and medicine.

A coordination chemistry study of hydrated and solvated cationic vanadium ions in oxidation states +III, +IV, and +V in solution and solid state

Krakowiak, Joanna; Lundberg, Daniel; Persson, Ingmar
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
EN
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47.80574%
The coordination chemistry of hydrated and solvated vanadium(III), oxovanadium(IV), and dioxovanadium(V) ions in the oxygen donor solvents water, dimethylsulfoxide (dmso) and N,N′-dimethylpropyleneurea (dmpu) has been studied in solution by EXAFS and large angle X-ray scattering (LAXS) and in solid state by single crystal X-ray diffraction and EXAFS. The hydrated vanadium(III) ion has a regular octahedral configuration with a mean V-O bond distance of 1.99 Å. In the hydrated and dimethylsulfoxide solvated oxovanadium(IV) ions vanadium binds strongly to an oxo group at ca. 1.6 Å. The solvent molecule trans to the oxo group is very weakly bound, at ca. 2.2 Å, while the remaining four solvent molecules, with a mean V-O bond distance of 2.0 Å, form a plane slightly below the vanadium atom; the mean O=V-Operp bond angle is ca. 98°. In the dmpu solvated oxovanadium(IV) ion, the space demanding properties of the dmpu molecule leaving no solvent molecule in the trans position to the oxo group which reduces the coordination number to 5. The O=V-O bond angle is consequently much larger, 106°, and the mean V=O and V-O bond distances decrease to 1.58 and 1.97 Å, respectively. The hydrated and dimethylsulfoxide solvated dioxovanadium(V) ions display a very distorted octahedral configuration with the oxo groups in cis position with mean V=O bond distances of 1.6 Å and a O=V=O bond angle of ca. 105°. The solvent molecules trans to the oxo groups are weakly bound...

Ab Initio Coordination Chemistry for Nickel Chelation Motifs

Jesu Jaya Sudan, R.; Lesitha Jeeva Kumari, J.; Sudandiradoss, C.
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 18/05/2015 EN
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Chelation therapy is one of the most appreciated methods in the treatment of metal induced disease predisposition. Coordination chemistry provides a way to understand metal association in biological structures. In this work we have implemented coordination chemistry to study nickel coordination due to its high impact in industrial usage and thereby health consequences. This paper reports the analysis of nickel coordination from a large dataset of nickel bound structures and sequences. Coordination patterns predicted from the structures are reported in terms of donors, chelate length, coordination number, chelate geometry, structural fold and architecture. The analysis revealed histidine as the most favored residue in nickel coordination. The most common chelates identified were histidine based namely HHH, HDH, HEH and HH spaced at specific intervals. Though a maximum coordination number of 8 was observed, the presence of a single protein donor was noted to be mandatory in nickel coordination. The coordination pattern did not reveal any specific fold, nevertheless we report preferable residue spacing for specific structural architecture. In contrast, the analysis of nickel binding proteins from bacterial and archeal species revealed no common coordination patterns. Nickel binding sequence motifs were noted to be organism specific and protein class specific. As a result we identified about 13 signatures derived from 13 classes of nickel binding proteins. The specifications on nickel coordination presented in this paper will prove beneficial for developing better chelation strategies.

Coordination Chemistry and Electronic Structure of Iron Clusters

Hernández Sánchez, Raúl
Fonte: Harvard University Publicador: Harvard University
Tipo: Thesis or Dissertation; text Formato: application/pdf
EN
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Mixed valence compounds have been recognized over the past five decades as a unique class of chemical species. Their distinctive spectral, electrochemical, physical and magnetic properties arise from electron delocalization into the sites with uneven valence. A primary consequence of this electron delocalization phenomenon is the stabilization of high spin multiplicities in certain dinuclear synthetic and polynuclear biological clusters. Therefore, the subject of this dissertation is to extend the current knowledge of the analysis of synthetic mixed valence clusters by systematically altering the coordination chemistry and redox states at well-defined synthetic, polynuclear iron clusters. A central focus of this thesis is to investigate the effect of superexchange, direct exchange, and double exchange electronic coupling in dinuclear [Fe2], trinuclear [Fe3], hexanuclear [Fe6], and octanuclear [Fe8] clusters with the goal of better understanding the principles that govern their complex electronic structures. It is concluded that the resulting electronic structure in these polynuclear systems is highly dependent on the extent of electron delocalization which can be tuned by solvation, anation, or chemical redox changes. This finding is highlighted by the observation that small variations on the solvation coordination sphere and redox level one can transverse spin ground states from S = 0 to S = 11 by addition of 6e– into [Fe6].; Chemistry and Chemical Biology

Low-coordinate iron and cobalt complexes: coordination chemistry and reactivity

Dugan, Thomas R. (1984 - ); Holland, Patrick L.
Fonte: University of Rochester Publicador: University of Rochester
Tipo: Tese de Doutorado Formato: Number of Pages:xxviii, 220 leaves; Illustrations:ill. (some col.)
ENG
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Thesis (Ph. D.)--University of Rochester. Dept. of Chemistry, 2012.; Unsaturated transition metal complexes are important in many stoichiometric and catalytic bond cleavage reactions. Therefore, low-coordinate transition metal complexes coordinated with sterically hindered ancillary ligands have been used for C-H activation, N2, and CO bond cleavage reactions. In this thesis, the coordination chemistry and reactivity of low-coordinate β-diketiminate cobalt and iron complexes toward bond-breaking and bond-making reactions is explored and presented.

In chapter 2, the unsaturated complex LtBuCo (LtBu = bulky β-diketiminate ligand) is reported. The β-diketiminate ligand in LtBuCo was ligated to cobalt in a slipped κN,η6-arene mode. Addition of Lewis bases to LtBuCo yielded rapid and reversible conversion to the κ2N,N΄ mode. The rate law of ligand binding to LtBuCo was first-order in both cobalt and substrate concentration. Therefore, ligand coordination was consistent with an associative or interchange mechanism that either preceded or occurred simultaneously to β-diketiminate isomerization. In addition, LtBuCo cleaved Sn-F and aryl C-F bonds...

An investigation of the coordination chemistry of the hexadentate ligand di-2-pyridylketone azine; the formation of a discrete tetranuclear complex with silver nitrate

Sumby, C.; Steel, P.
Fonte: Royal Soc Chemistry Publicador: Royal Soc Chemistry
Tipo: Artigo de Revista Científica
Publicado em //2005 EN
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The ligand di-2-pyridylketone azine, 1, was prepared by reaction of di-2-pyridylketone with hydrazine hydrate. This potentially hexadentate compound incorporates two extra imine donor atoms over other previously investigated ligands derived from di-2-pyridylmethane. The coordination chemistry of 1 was investigated with silver nitrate, copper nitrate and palladium chloride. Reaction of 1 with silver nitrate gave a discrete tetranuclear complex, 4, while with copper nitrate, decomposition of the original ligand gave copper complexes 5 and 6 of the ligands 3-(2-pyridyl)-triazolo[1,5-a]pyridine, 2, and di-2-pyridylmethanediol, 3, respectively. The complexes were characterised by elemental analyses and X-ray crystallography.; Christopher J. Sumby and Peter J. Steel; © Royal Society of Chemistry 2005

Coordination chemistry of di-2-pyridylmethane and related bridging ligands with silver(i), copper(ii), palladium(ii) and zinc(ii)

Steel, P.; Sumby, C.
Fonte: Royal Soc Chemistry Publicador: Royal Soc Chemistry
Tipo: Artigo de Revista Científica
Publicado em //2003 EN
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Di-2-pyridylmethane ( 1) and the bridging ligands 1,1,2,2-tetra(2-pyridyl)ethane ( 2), 1,1,2,2-tetra(2-pyridyl)ethan-2-ol ( 3) and tetra(2-pyridyl)ethene ( 4) chelate to metal atoms with the formation of 6-membered chelate rings. The utility of these ligands in coordination chemistry and as metallosupramolecular synthons was probed by reaction with silver, copper, palladium and zinc salts. On reaction with AgNO3 the model ligand, 1, formed a 1-D coordination polymer with an unusual bridging mode and with Cu(NO3)2 underwent oxidation to produce a Cu6(L)4(L = 5, di-2-pyridylmethanediol) complex. The bridging ligands 2 and 4 formed several discrete dinuclear complexes, a [2 + 2]-dimetallomacrocycle and a 1-D coordination polymer. Ligand 3 was demonstrated to be less stable and underwent three different solvolysis reactions to give a range of products that were characterised by X-ray crystallography.; Peter J. Steel and Christopher J. Sumby; © Royal Society of Chemistry 2003

Coordination chemistry of di-2-pyridylamine-based bridging heterocyclic ligands: A structural study of coordination polymers and discrete dinuclear complexes

Sumby, C.; Steel, P.
Fonte: Elsevier Science SA Publicador: Elsevier Science SA
Tipo: Artigo de Revista Científica
Publicado em //2007 EN
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Four new bridging ligands containing two di-2-pyridylamine subunits have been synthesised. The coordination chemistry of these, along with one previously reported ligand, has been investigated through reactions with various silver(I), copper(II) and palladium(II) reactants. Typically, reaction of these ligands with silver(I) salts gave 1-D coordination polymers, within which the ligands act as divergent bridging units, while reaction with copper(II) and palladium(II) precursors provided discrete dinuclear complexes with chelating bidentate subunits. The complexes were characterised by a combination of elemental analysis, NMR spectroscopy and X-ray crystallography. The silver coordination polymers displayed interesting variations in supramolecular architecture, attributed to weak secondary interactions, such as Agcdots, three dots, centeredπ-bonding.; http://www.elsevier.com/wps/find/journaldescription.cws_home/504086/description#description; Christopher J. Sumby and Peter J. Steel; Copyright © 2006 Elsevier B.V. All rights reserved.

Studies of hexaaryl[3]radialene ligands: synthesis, coordination chemistry and anion interactions.

Hollis, Courtney Ann
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2013
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This thesis describes the synthesis and study of three nitrile substituted hexaaaryl[3]radialene ligands, two of which are new compounds, and three new flexible bis-pyridyl ligands produced as precursors in the attempted synthesis of extended hexaaryl[3]radialenes. The coordination and metallo-supramolecular chemistry of these compounds were investigated with a variety of different metal atoms, primarily silver(I) and copper(I) due to the nature of the soft nitrile donors. Five different coordination modes were observed for hexakis(4 cyanophenyl)[3]radialene with silver(I) and copper(I) including bidentate, tetradentate, and also the first example of this compound acting as a hexadentate ligand. The flexible bis-pyridyl ligands were observed to form predominantly 1-D coordination polymers but also on occasion led to the production of 2-D networks. Mononuclear ruthenium(II) complexes of hexakis(4-cyanophenyl)[3]radialene and hexakis(3-cyanophenyl)[3]radialene are also described, although di- and tri-nuclear complexes were unable to be obtained and thus the nature of any metal-metal interactions within such complexes were unable to be examined. Visible absorption and fluorescence spectroscopy, as well as cyclic voltammetry, were used to examine the properties of the mononuclear radialene complexes as well as dinuclear ruthenium(II) complexes of the [3]radialene precursors 4...

Synthesis and coordination chemistry of polypyridyl amide ligands.

Abdul Kadir, Maisara
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2012
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This thesis provides an account of the synthesis and study of fifteen amide-containing polypyridyl ligands, eleven of which are new compounds. These ligands all possess at least one amide moiety, potentially capable of anion binding and one or more pendant pyridyl donor groups as the metal coordinating sites. A further evolution over previously reported compounds is that a majority of the amide compounds incorporate a pre-organised amide component that will constitute the anion binding region. The alkyl and phenyl spacers were utilised to confer flexibility to these compounds and to extend the spacing between the anion binding moiety and the pendant metal complexing groups. The compounds investigated in this work are divided into three categories; (i) unsymmetrical monoamide ligands that possess one amide functional group, one ester protected carboxylate and one external donor pyridyl moiety; (ii) symmetrical flexible amide ligands that possess two or more internal amide groups and two external pyridyl metal coordinating sites, and; (iii) symmetrical amide bridging ligands that incorporate two di-2-pyridylmethylamine chelating motifs. The coordination chemistry and metallo-supramolecular chemistry of these ligands was investigated with a range of late transition metals including cadmium(II)...

The Synthesis and Coordination Chemistry of Two Families of Polydentate Ligands - Exploring Their Potential for the Preparation of Molecule-Based Magnets

ZARRABI, NILOOFAR
Fonte: Brock University Publicador: Brock University
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The synthesis and studies of two classes of poly dentate ligands are presented as two projects. In project 1, four new carboxamide ligands have been synthesised via the condensation of 2,2',6,6'-tetrachloroformyl-4,4'-bipyridine or 2,6-dichloroformyl pyridine together with heterocyclic amines containing pyridine or pyrazole substituents. The coordination chemistry of these ligands has been investigated and studies have shown that with a Cu(II) salt, two carboxamide ligands LJ and L2 afford large clusters with stoichiometries [Cu8(L1)4Cl16].CHCl3.5H2O.7CH3OH (I) and [Cu9(L2)6Cl6].CH3OH.5H2O.(C2H5)3N (II) respectively. [molecular diagram availabel in pdf]. X-ray diffraction studies of cluster (I) reveal that it has approximate S4 symmetry and is comprised of four ligands and eight copper (II) centers. Here, coordination takes place via amide 0 atoms, and pyrazole nitrogens. This complex is the first reported example of an octanuclear copper cluster with a saddle-shaped structure. The second cluster comprises nine copper ions that are arranged in a cyclic array. Each ligand coordinates three copper centers and each copper ion shares two ligands to connect six ligands with nine copper ions. The amide nitrogens are completely deprotonated and both amide Nand 0 atoms coordinate the metal centres. The cluster has three-fold symmetry. There are six chloride ions...

STUDIES OF THE COORDINATION CHEMISTRY AND CATALYTIC ACTIVITY OF RHODIUM AND RUTHENIUM N-HETEROCYCLIC CARBENE COMPLEXES

PRAETORIUS, Jeremy
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado
EN; EN
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The side-on dioxygen adducts of N-heterocyclic carbene (NHC) containing rhodium complexes, [ClRh(IPr)2(O2)] and [ClRh(IMes)2(O2)], previously synthesized in our laboratories possess a square planar geometry and O-O bond lengths of 1.323(3) and 1.341(4) Å, respectively. Both of these attributes are uncharacteristic of Rh(O2) complexes, which are typically octahedral and possess O-O bond lengths of approximately 1.45 Å. Full characterization by NMR, IR, Raman, DFT and XAS confirmed the short O-O bond lengths of these structures and revealed that they were rhodium(I) coordination complexes of singlet oxygen with no net oxidation/reduction process having taken place. The unique bonding mode appears to result from the interaction of a filled Rh d orbital with one of the two degenerate O2 * orbitals, which causes splitting of the O2 * orbitals, favoring spin pairing in the O2 HOMO, and the inability of Rh to donate electron density to the empty * orbital. Initial investigations of these complexes as catalysts for the reduction and oxidation of C-O bonds, as well as singlet oxygen generation were also undertaken. Rh(IPr)2 coordination complexes of N2, H2 and CO were also synthesized and characterized by X-ray crystallography...

Novel Iron(II) Triazole-Pyridine Based Dinuclear Complexes: Synthesis, Characterization And Magnetic Properties

Guo, Huan
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado
EN; EN
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The major focus of this thesis involves a new approach to spin-crossover (SCO) in iron(II) dinuclear complexes. In order to acquire SCO properties, a series of novel ligands (L1M, L2M, L3M, L4M), together with the corresponding iron(II) and/or nickel(II) complexes were synthesized and characterized. Beyond the successful synthesis and characterization of these ligands, some interesting aspects of their synthesis are discussed. The reported ligands are methyl-derivatives from ligands previously studied in the group. The methyl group in the position 6 of the pyridine group is introduced to induce steric hindrance in the complexes and decrease the ligand field strength. As a result, the influence of the methyl group may induce SCO in low spin (LS) complexes, or tune the SCO properties (such as transition hysteresis or transition temperature) in complexes with SCO. Ligands were divided into three different types according to their spacers: a ligand with an aromatic spacer (L1M), ligands with aliphatic spacer (L2M, L3M) and a ligand with no spacer (L4M). The difference between their structures helped us to better understand the coordination chemistry of the corresponding complexes. The nickel(II) complexes formed provided useful background information on the coordination chemistry of iron(II)...

Contrôle de l'organisation moléculaire en 2D et 3D par l’utilisation de liaisons hydrogène, de coordination métallique et d'autres interactions

Duong, Adam
Fonte: Université de Montréal Publicador: Université de Montréal
Tipo: Thèse ou Mémoire numérique / Electronic Thesis or Dissertation
FR
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La stratégie de la tectonique moléculaire a montré durant ces dernières années son utilité dans la construction de nouveaux matériaux. Elle repose sur l’auto-assemblage spontané de molécule dite intelligente appelée tecton. Ces molécules possèdent l’habilité de se reconnaitre entre elles en utilisant diverses interactions intermoléculaires. L'assemblage résultant peut donner lieu à des matériaux moléculaires avec une organisation prévisible. Cette stratégie exige la création de nouveaux tectons, qui sont parfois difficiles à synthétiser et nécessitent dans la plupart des cas de nombreuses étapes de synthèse, ce qui empêche ou limite leur mise en application pratique. De plus, une fois formées, les liaisons unissant le corps central du tecton avec ces groupements de reconnaissance moléculaire ne peuvent plus être rompues, ce qui ne permet pas de remodeler le tecton par une procédure synthétique simple. Afin de contourner ces obstacles, nous proposons d’utiliser une stratégie hybride qui se sert de la coordination métallique pour construire le corps central du tecton, combinée avec l'utilisation des interactions plus faibles pour contrôler l'association. Nous appelons une telle entité métallotecton du fait de la présence du métal. Pour explorer cette stratégie...

Technetium and rhenium: coordination chemistry and nuclear medical applications

Abram,Ulrich; Alberto,Roger
Fonte: Sociedade Brasileira de Química Publicador: Sociedade Brasileira de Química
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/12/2006 EN
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Coordination compounds of the radioactive element technetium are well established in diagnostic nuclear medicine, and various complexes of the gamma-emitting nuclide 99mTc are routinely used for organ imaging. Modern trends in the radiopharmaceutical chemistry of technetium focus on the 'labeling' of biologically active molecules such as peptides, steroids or other receptor-seeking units. This requires more knowledge about the coordination chemistry of the artificial transition metal, particularly with regard to stable or kinetically inert coordination spheres, which allow couplings to biomolecules following a bioconjugate approach. The dominant role of technetium compounds in diagnostic procedures recommends the beta--emitting rhenium isotopes 186Re and 188Re for applications in nuclear-medical therapy. 188Re is readily available from an 188W/188Re radionuclide generator system and general synthetic approaches can be adopted from the established technetium chemistry.

Group VIII Coordination Chemistry of a Pincer-Type Bis(8-quinolinyl)amido Ligand

Betley, Theodore A.; Qian, Baixin A.; Peters, Jonas C.
Fonte: American Chemical Society Publicador: American Chemical Society
Tipo: Article; PeerReviewed Formato: chemical/x-cif
Publicado em 15/12/2008
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This paper provides an entry point to the coordination chemistry of the group VIII chemistry of the bis(8-quinolinyl)amine (BQA) ligand. In this context, mono- and disubstituted BQA complexes of iron, ruthenium, and osmium are described. For example, the low-spin bis-ligated Fe(III) complex [Fe(BQA)2][BPh4] has been prepared via amine addition to FeCl3 in the presence of a base and NaBPh4. Complexes featuring a single BQA ligand are more readily prepared for Ru and Os. Auxiliary ligands featuring a single BQA ligand, along with two other L-type donor ligands, allow for a variety of ligand types to occupy a sixth coordination site. Representative examples include the halide and pseudohalide complexes trans-(BQA)MX(PPh3)2 (M = Ru, Os; X = Cl, Br, N3, OTf), as well as the hydride and alkyl complexes trans-(BQA)RuH(PMe3)2 and trans-(BQA)RuMe(PMe3)2. Electrochemical studies are discussed that help to contextualize the BQA ligand with respect to its neutral counterpart 2,2′,2′′-terpyridine (terpy) in terms of electron-releasing character. Bidentate ligands have been explored in conjunction with the BQA ligand. Thus, the bidentate, monoanionic aryl(8-quinolinyl)amido ligand 3,5-(CF3)2-(C6H3)QA has been installed onto the (BQA)Ru platform to provide (BQA)Ru(3...

Coordination Chemistry: An Audacious Dream of Alfred Werner; Química de Coordenação: Um Sonho Audacioso de Alfred Werner

Leandro Marcos Santos; Universidade Federal de Alfenas; Luís Eduardo Sarto; Universidade Federal de Alfenas; Gabriela Francini Bozza; Universidade Federal de Alfenas; Eduardo T. de Almeida; Universidade Federal de Alfenas
Fonte: Revista Virtual de Química Publicador: Revista Virtual de Química
Tipo: ; Formato: binary/octet-stream
Publicado em 01/11/2014 PT
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2013 was the centennial celebration of the Nobel Prize awarded to Alfred Werner in recognition of his important scientific contributions to Inorganic Chemistry. Through his ideological audacity, acumen in chemical experimentation and wide theoretical knowledge, Werner was able to found the conceptual basis for understanding and explaining one of the most fascinating areas of Inorganic Chemistry: Coordination Chemistry. This paper presents the scientific findings and also the available tools at the time Werner developed his theory for which he was awarded the Nobel Prize in Chemistry in 1913. DOI: 10.5935/1984-6835.20140083; Em 2013 comemoraram-se cem anos que Alfred Werner foi laureado com o Prêmio Nobel, em reconhecimento por suas importantes contribuições científicas à Química Inorgânica. Somando sua audácia ideológica, sua perspicácia na experimentação química e seu vasto conhecimento teórico, Werner foi capaz de fundar as bases conceituais para a compreensão e explicação de uma das mais fascinantes áreas da Química Inorgânica: a Química de Coordenação. Este artigo apresenta as constatações científicas e também as ferramentas disponíveis na época em que Werner desenvolveu sua teoria que lhe rendeu o Prêmio Nobel de Química em 1913. DOI: 10.5935/1984-6835.20140083