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Neutral, heteroleptic copper(I)-4H-imidazolate complexes: synthesis and characterization of their structural, spectral and redox properties

09-Feb-2016 | Martin Schulz; Fabian Dröge; Felix Herrmann; Julian Schindler; Helmar Görls; Martin Presselt, Dalton Transactions, 2016

Facile synthetic access to four novel, neutral, heteroleptic copper(I)-complexes, incorporating 4H-imidazolates as well as the bisphosphane ligands XantPhos and DPEPhos is reported. The complexes were characterized in the solid state as well as in solution by means of single crystal X-ray ...

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Chloride and Indium‐Chloride‐Complex Inorganic Ligands for Efficient Stabilization of Nanocrystals in Solution and Doping of Nanocrystal Solids

05-Feb-2016 | Vladimir Sayevich, Chris Guhrenz, Maria Sin, Volodymyr M. Dzhagan, Alexander Weiz, Daniel Kasemann, Eike Brunner, Mi ..., Advanced Functional Materials, 2016

Here, the surface functionalization of CdSe and CdSe/CdS core/shell nanocrystals (NCs) with compact chloride and indium‐chloride‐complex ligands is reported. The ligands provide not only short interparticle distances but additionally control doping and passivation of surface trap states, leading ...

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Hydroelementation of Unsaturated C–C Bonds Catalyzed by Metal Scorpionate Complexes

05-Feb-2016 | Matthew Wathier, Jennifer A. Love, European Journal of Inorganic Chemistry, 2016

Abstract Tridentate scorpionate ligands have a rich history in coordination chemistry. In the past two decades, metal complexes bearing scorpionate ligands have found increasing utility as catalysts for a variety of useful transformations. This microreview focuses on the utility of scorpionate ...

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Enhancing Reactivity of Directly ­Observable B–H–Pt Interactions through Conformational Rigidity

03-Feb-2016 | Shrinwantu Pal, Marcus W. Drover, Brian O. Patrick, Jennifer A. Love, European Journal of Inorganic Chemistry, 2016

Abstract We report for the first time the direct syntheses of trimethylplatinum(IV) complexes supported by bis(pyrazolyl)dihydridoborate (Bp) and bis(3,5‐dimethylpyrazolyl)dihydridoborate (Bp*) ligands from the corresponding dimethylplatinum(II) complexes. X‐ray crystallographic and ...

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Half-sandwich nickel complexes with ring-expanded NHC ligands – synthesis, structure and catalytic activity in Kumada-Tamao-Corriu coupling

02-Feb-2016 | Łukasz Banach; Piotr Aleksander Guńka; Wlodzimierz Buchowicz, Dalton Transactions, 2016

A general synthesis of complexes [Ni(Cp)(X)(NHC)] from a nickel halide, CpLi, and a carbene solution is reported. This procedure yields unprecedented complexes with ring-expanded NHC ligands (RE-NHC) of six- (1a, 1b), seven- (1c), and eight-membered (1d) heterocycles. The NMR spectra of 1a-1d are ...

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Subcomponent Flexibility Enables Conversion between D4-Symmetric CdII8L8 and T-Symmetric CdII4L4 Assemblies

02-Feb-2016 | Jesús Mosquera; Tanya K. Ronson; Jonathan R. Nitschke, Journal of the American Chemical Society, 2016

A flexible tris-formylpyridine subcomponent A was observed to produce three distinct products following CdII-templated self-assembly with different anilines. Two of the products were CdII4L4 tetrahedra, one with ligands puckered inward, and the other outward. The third product was a CdII8L8 ...

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Synthesis of Sodium Complexes Supported with NNO-Tridentate Schiff Base Ligands and Their Applications in the Ring-Opening Polymerization of l-Lactide

01-Feb-2016 | Hsiu-Wei Ou; Kai-Hsuan Lo; Wei-Ting Du; Wei-Yi Lu; Wan-Jung Chuang; Bor-Hunn Huang; Hsuan-Ying Chen; Chu-Chieh Lin, Inorganic Chemistry, 2016

A series of sodium complexes bearing NNO-tridentate Schiff base ligands with an N-pendant arm were synthesized and used as catalysts for the ring-opening polymerization of l-lactide (l-LA). Electronic effects of ancillary ligands coordinated by sodium complexes substantially influence the ...

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Solution Layer Deposition: A Technique for the Growth of Ultra‐Pure Manganese Oxides on Silica at Room Temperature

28-Jan-2016 | Jérémy Cure, Kilian Piettre, Yannick Coppel, Eric Beche, Jérôme Esvan, Vincent Collière, Bruno Chaudret, Pierre Fau, Angewandte Chemie International Edition, 2016

Abstract With the ever increasing miniaturization in microelectronic devices, new deposition techniques are required to form high‐purity metal oxide layers. Herein, we report a liquid route to specifically produce thin and conformal amorphous manganese oxide layers on silicon substrate, which ...

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Highly Efficient Transition Metal Nanoparticle Catalysts in Aqueous Solutions

28-Jan-2016 | Changlong Wang, Roberto Ciganda, Lionel Salmon, Danijela Gregurec, Joseba Irigoyen, Sergio Moya, Jaime Ruiz, Didier ..., Angewandte Chemie International Edition, 2016

Abstract A ligand design is proposed for transition metal nanoparticle (TMNP) catalysts in aqueous solution. Thus, a tris(triazolyl)‐polyethylene glycol (tris‐trz‐PEG) amphiphilic ligand, 2, is used for the synthesis of very small TMNPs with Fe, Co, Ni, Cu, Ru, Pd, Ag, Pt, and Au. These TMNP‐2 ...

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Radical Monocationic Guanidino-Functionalized Aromatic Compounds (GFAs) as Bridging Ligands in Dinuclear Metal Acetate Complexes: Synthesis, Electronic Structure, and Magnetic Coupling

27-Jan-2016 | Benjamin Eberle; Marko Damjanović; Markus Enders; Simone Leingang; Jessica Pfisterer; Christoph Krämer; Olaf Hübner; ..., Inorganic Chemistry, 2016

In this work, the oxidation of several new dinuclear metal (M) acetate complexes of the redox-active guanidino-functionalized aromatic compound (GFA) 1,2,4,5-tetrakis(tetramethylguanidino)benzene (1) was studied. The complexes [1{M(OAc)2}2] (M = Ni or Pd) were oxidized to the radical monocationic ...

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