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3,048 Newest Publications about the topic sulfur

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Reactivity of endo-3-bromocamphor with sulfur-centered nucleophiles by an electron transfer mechanism. Electrophilic behaviour of the 3-camphoryl radical

13-01-2011 | Jorge G. Uranga; Ana N. Santiago, Organic & Biomolecular Chemistry, 2011

Jorge G. Uranga, Ana N. Santiago (Paper from Org. Biomol. Chem.) Jorge G. Uranga, Org. Biomol. Chem., 2011, DOI: 10.1039/c0ob01108h To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry

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Method for Determining the Elemental Composition and Distribution in Semiconductor Core−Shell Quantum Dots

12-01-2011 | Gilad Zorn; Shivang R. Dave; Xiaohu Gao; David G. Castner, Analytical Chemistry, 2011

In the biological sciences, the use of core−shell quantum dots (QDs) has gained wide usage but analytical challenges still exist for characterizing the QD structure. The application of energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy (XPS) to bulk materials is relatively ...

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Ruthenium-Decorated Lipid Vesicles: Light-Induced Release of [Ru(terpy)(bpy)(OH2)]2+ and Thermal Back Coordination

12-01-2011 | Sylvestre Bonnet; Bart Limburg; Johannes D. Meeldijk; Robertus J. M. Klein Gebbink; J. Antoinette Killian, Journal of the American Chemical Society, 2011

Electrostatic forces play an important role in the interaction between large transition metal complexes and lipid bilayers. In this work, a thioether-cholestanol hybrid ligand (4) was synthesized, which coordinates to ruthenium(II) via its sulfur atom and intercalates into lipid bilayers via its ...

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Protein Thiocarboxylate-Dependent Methionine Biosynthesis in Wolinella succinogenes

12-01-2011 | Kalyanaraman Krishnamoorthy; Tadhg P. Begley, Journal of the American Chemical Society, 2011

Thiocarboxylated proteins are important intermediates in a variety of biochemical sulfide transfer reactions. Here we identify a protein thiocarboxylate-dependent methionine biosynthetic pathway in Wolinella succinogenes. In this pathway, the carboxy terminal alanine of a novel sulfur transfer ...

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Characterization of an NADH-Dependent Persulfide Reductase from Shewanella loihica PV-4: Implications for the Mechanism of Sulfur Respiration via FAD-Dependent Enzymes,

11-01-2011 | Megan D. Warner; Vinita Lukose; Kyu Hyun Lee; Karlo Lopez; Matthew H. Sazinsky; Edward J. Crane, III, Biochemistry, 2011

The NADH-dependent persulfide reductase (Npsr), a recently discovered member of the PNDOR family of flavoproteins that contains both the canonical flavoprotein reductase domain and a rhodanese domain, is proposed to be involved in the dissimilatory reduction of S0 for Shewanella loihica PV-4. We ...

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Aggregation and pH Responsive Disassembly of a New Acid-Labile Surfactant Synthesized by Thiol−Acrylate Michael Addition Reaction

11-01-2011 | Krishna Dan; Rakesh Pan; Suhrit Ghosh, Langmuir, 2011

Nucleophilic thiol−acrylate Michael reaction between a hydrophobic thiol and hydrophilic acrylate derivative generated a nonionic surfactant with acid-labile β-thiopropionate linker. Micellization of the surfactant, its ability to encapsulate hydrophobic dye, acid-induced disruption of the ...

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From Thioxo Cluster to Dithio Cluster: Exploring the Chemistry of Polynuclear Zirconium Complexes with S,O and S,S Ligands

10-01-2011 | Federica Maratini; Luciano Pandolfo; Maria Bendova; Ulrich Schubert; Matthias Bauer; Massimiliano Rocchia; Alfonso V ..., Inorganic Chemistry, 2011

Three different zirconium thio and oxothio clusters, characterized by different coordination modes of dithioacetate and/or monothioacetate ligands, were obtained by the reaction of monothioacetic acid with zirconium n-butoxide, Zr(OnBu)4, in different experimental conditions. In particular, we ...

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Identification of a Novel η2-Se2 Bonding Mode in Cu(I) Complexes of the Dimeric Selenocarbonyl Dianions, [(EPh2P)2CSeSeC(PPh2E)2]2− (E = S, Se)

10-01-2011 | Maarit Risto; Jari Konu; Tristram Chivers, Inorganic Chemistry, 2011

The metathetical reaction of [Li(TMEDA)][(H)C(PPh2Se)2] with CuCl2 affords unexpectedly the binuclear Cu(I)/Cu(I) complex of the dimeric dianion, [(SePh2P)2CSeSeC(PPh2Se)2]2−, via an internal redox process. The related sulfur-containing complex {Cu2-η2:η2-[(SPh2P)2CSeSeC(PPh2S)2]} is formed from ...

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S K-Edge X-Ray Absorption Spectroscopy and Density Functional Theory Studies of High and Low Spin {FeNO}7 Thiolate Complexes: Exchange Stabilization of Electron Delocalization in {FeNO}7 and {FeO2}8

10-01-2011 | Ning Sun; Lei V. Liu; Abhishek Dey; Gloria Villar-Acevedo; Julie A. Kovacs; Marcetta Y. Darensbourg; Keith O. Hodgso ..., Inorganic Chemistry, 2011

S K-edge X-ray absorption spectroscopy (XAS) is a direct experimental probe of metal ion electronic structure as the pre-edge energy reflects its oxidation state, and the energy splitting pattern of the pre-edge transitions reflects its spin state. The combination of sulfur K-edge XAS and density ...

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Spectroscopic Characterization of the Molybdenum Cofactor of the Sulfane Dehydrogenase SoxCD from Paracoccus pantotrophus

10-01-2011 | Simon C. Drew; Eduard Reijerse; Armin Quentmeier; Dagmar Rother; Cornelius G. Friedrich; Wolfgang Lubitz, Inorganic Chemistry, 2011

The bacterial sulfane dehydrogenase SoxCD is a distantly related member of the sulfite oxidase (SO) enzyme family that is proposed to oxidize protein-bound sulfide (sulfane) of SoxY as part of a multienzyme mechanism of thiosulfate metabolism. This study characterized the molybdenum cofactor of ...

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