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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 ...


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 ...


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 ...


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)) ...


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 ...


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 ...


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 ...


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 ...


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 ...


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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