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Three new luminescent Cd(II)-MOFs by regulating the tetracarboxylate and auxiliary co-ligands, displaying high sensitivity for Fe3+ in aqueous solution

20-May-2015 | Yunlong Wu; Guo-Ping Yang; Xiang Zhou; Jiang Li; Yan Ning; Yao-Yu Wang, Dalton Transactions, 2015

Three new Cd(ii)-MOFs, [Cd(L1)0.5(bpp)] (1), [Cd(L1)0.5(bipy)] (2), and [Cd(L2)0.5(bipy)] (3) [H4Ln = (1,1′:4′,1′′-terphenyl)-2′,x,x′′,5′-tetracarboxylic acid (n = 1, x = 3, and n = 2, x = 4), bpp = 1,3-di(4-pyridyl)propane, and bipy = 2,2′-bipyridine], have been synthesized using Cd(ii) ions and ...

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Pd(II) complexes of Schiff bases and their application as catalysts in Mizoroki–Heck and Suzuki–Miyaura cross‐coupling reactions

14-May-2015 | Mustafa Keleş, Hülya Keleş, Duygu Melis Emir, Applied Organometallic Chemistry, 2015

Schiff bases of 2‐(phenylthio)aniline, (C6H5)SC6H4NCR (R = (o‐CH3)(C6H5), (o‐OCH3)(C6H5) or (o‐CF3)(C6H5)), and their palladium complexes (PdLCl2) were synthesized. The compounds were characterized using 1H NMR and 13C NMR spectroscopy and micro analysis. Also, electrochemical properties of the ...

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Cationic Gold Clusters Ligated with Differently Substituted Phosphines: Effect of Substitution on Ligand Reactivity and Binding

13-May-2015 | Grant E Johnson; Astrid Olivares; David Hill; Julia Laskin, Physical Chemistry Chemical Physics, 2015

We present a systematic study of the effect of the number of methyl (Me) and cyclohexyl (Cy) functional groups in monodentate phosphine ligands on the solution-phase synthesis of ligated sub-nanometer gold clusters and their gas-phase fragmentation pathways. Small mixed ligand cationic gold ...

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Luminescent Di‐ and Trinuclear Boron Complexes Based on Aromatic Iminopyrrolyl Spacer Ligands: Synthesis, Characterization, and Application in OLEDs

12-May-2015 | D. Suresh, Clara S. B. Gomes, Patrícia S. Lopes, Cláudia A. Figueira, Bruno Ferreira, Pedro T. Gomes, Roberto E. Di  ..., Chemistry - A European Journal, 2015

Abstract New bis‐ and tris(iminopyrrole)‐functionalized linear (1,2‐(HNC4H3‐C(H)N)2‐C6H4 (2), 1,3‐(HNC4H3‐C(H)N)2‐C6H4 (3), 1,4‐(HNC4H3‐C(H)N)2‐C6H4 (4), 4,4′‐(HNC4H3‐C(H)N)2‐(C6H4‐C6H4) (5), 1,5‐(HNC4H3C‐(H)N)2‐C10H6 (6), 2,6‐(HNC4H3C‐(H)N)2‐C10H6 (7), 2,6‐(HNC4H3C‐(H)N)2‐C14H8 (8)) ...

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Syntheses, Spectroscopy, and Structural Analyses of Dinuclear Chiral‐at‐Metal μ‐Aqua‐tetrakis[(R or S)‐N‐1‐(Ar)ethyl­sal­icylaldiminato]di‐Λ‐ or ‐Δ‐nickel(II) Complexes

11-May-2015 | Mohammed Enamullah, Mohammad Abdul Quddus, Mohammad Rezabul Hasan, Gennaro Pescitelli, Roberto Berardozzi, Guido J. ..., European Journal of Inorganic Chemistry, 2015

Abstract Enantiopure dinuclear μ‐aqua‐tetrakis[(R or S)‐N‐1‐(Ar)ethylsalicylaldiminato]di‐Λ‐ or ‐Δ‐nickel(II) [Ar = C6H5 (R‐1/S‐1), p‐MeOC6H4 (R‐2/S‐2), p‐ClC6H4 (R‐3/S‐3), p‐BrC6H4 (R‐4)] complexes have been synthesized from the reaction between (R or S)‐N‐1‐(Ar)ethylsalicylaldimine and ...

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Synthesis and Biodistribution Studies of 3H- and 64Cu-Labeled Dendritic Polyglycerol and Dendritic Polyglycerol Sulfate

11-May-2015 | Kritee Pant; Dominic Gröger; Ralf Bergmann; Jens Pietzsch; Jörg Steinbach; Bim Graham; Leone Spiccia; Fannely Bertho ..., Bioconjugate Chemistry, 2015

Dendritic polyglycerol sulfate (dPGS) is a biocompatible, bioactive polymer which exhibits anti-inflammatory activity in vivo and thus represents a promising candidate for therapeutic and diagnostic applications. To investigate the in vivo pharmacokinetics in detail, dPGS with a molecular weight ...

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Construction of Identical [2 + 2] Schiff-Base Macrocyclic Ligands by LnIII and ZnII Template Ions Including Efficient YbIII Near-Infrared Sensitizers

08-May-2015 | Kun Zhang; Lei Zhang; Song Zhang; Yong Hu; Youxuan Zheng; Wei Huang, Inorganic Chemistry, 2015

Identical 34-membered [2 + 2] pendent-armed Schiff-base macrocyclic ligands (H4La and H4Lb) can be constructed via the condensation reactions between rigid o-phenylenediamine and extended dialdehydes (H2hpdd/H2pdd) in the presence of either LnIII or ZnII template with remarkable distinction on ...

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Mechanistic Significance of the Si–O–Pd Bond in the Palladium-Catalyzed Cross-Coupling Reactions of Arylsilanolates

06-May-2015 | Steven A. Tymonko; Russell C. Smith; Andrea Ambrosi; Michael H. Ober; Hao Wang; Scott E. Denmark, Journal of the American Chemical Society, 2015

Through the combination of reaction kinetics (both stoichiometric and catalytic), solution- and solid-state characterization of arylpalladium(II) arylsilanolates, and computational analysis, the intermediacy of covalent adducts containing Si–O–Pd linkages in the cross-coupling reactions of ...

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Kinetico-Mechanistic Studies of Nucleoside and Nucleotide Substitution Reactions of CoIII Complexes of Fully Alkylated Cyclen

06-May-2015 | Manuel Martínez; Marta Vázquez, Inorganic Chemistry, 2015

The solution chemistry of complex [Co{(Me)2(μ-ET)cyclen}(H2O)2]3+ containing a fully substituted tetraammine ligand designed for the avoidance of base-conjugated substitution mechanisms in the 6–8 pH range has been studied. The study should shed some light on the possible involvement of such ...

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Stabilizing Divalent Europium in Aqueous Solution Using Size-Discrimination and Electrostatic Effects

05-May-2015 | Martín Regueiro-Figueroa; José Luis Barriada; Agnès Pallier; David Esteban-Gómez; Andrés de Blas; Teresa Rodríguez-B ..., Inorganic Chemistry, 2015

We report two macrocyclic ligands containing a 1,10-diaza-18-crown-6 fragment functionalized with either two picolinamide pendant arms (bpa18c6) or one picolinamide and one picolinate arm (ppa18c6–). The X-ray structure of [La(ppa18c6)(H2O)]2+ shows that the ligand binds to the metal ion using ...

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