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Synthesis of zero-valent iron nanoparticles via laser ablation in a formate ionic liquid under atmospheric conditions
Transition metal nanoparticles (NPs) are promising materials for use as catalysts in many processes, although they are easily oxidized under ambient conditions. In this communication, a novel synthetic method is proposed for producing zero-valent iron (Fe) NPs by laser ablation under atmospheric con...

Engineering strategies for rational polyketide synthase design
Covering: mid 1990s to 2018Over the last two decades, diverse approaches have been explored to generate new polyketides by engineering polyketide synthases (PKSs). Although it has been proven possible to produce new compounds by designed PKSs, engineering strategies failed to make polyketides availa...

An efficient copper catalyzed 3D mesoporous aluminosilicate for the synthesis of dibenzodiazonines in Ullmann cross-coupling reaction
A series of copper oxide with different weight percentages such as 2%, 4% & 6% supported on three dimensional mesoporous aluminosilicates have been prepared by hydrothermal method, the effects of loading amount on the support, interactions of components and surface properties were systematically inv...

Rare-earth metal bis(aminobenzyl) complexes supported by pyrrolyl-functionalized arylamide ligands: synthesis, characterization and styrene polymerization performance
Acid-base reaction between the rare-earth tris(o-dimethylaminobenzyl) complexes Ln(CH2C6H4NMe2-o)3 and the pyrrolyl-functionalized arylamide ligands 2,5-Me2C4H2NCH2SiMe2NHC6H4R (R = H, (HL1); R = Cl-p, (HL2)) was investigated. Treatment of HL1 and HL2 with 1 equiv. of Ln(CH2C6H4NMe2-o)3 in toluene a...

Impact of “half-crown/two carbonyl” - Ca2+ Metal Ion Interactions of a Low Molecular Weight Gelator (LMWG) on its Fiber to Nanosphere Morphology Transformation with Gel-to-Sol Phase Transition.
We report here a smart functional low molecular weight gelator (LMWG) L, containing unusual metal ion coordination site, i.e. “half-crown/two carbonyl”. The gelator L shows excellent gelation behavior with typical fibrillar morphology in acetonitrile, methanol and ethanol medium. Upon Ca2+ ion bindi...

A light-driven molecular machine based on stiff stilbene
We report a new molecular design for optically triggered nm-scale translation of a submolecular component relative to another. We used a rotaxane-like molecule terminated at one end with stiff stilbene that served both as a chromophore to trigger the translation of the pillar[5]arene “wheel” and as ...

Formation of arrays of planar, murine, intestinal crypts possessing a stem/proliferative cell compartment and differentiated cell zone
A simple, in vitro intestinal model recapitulating key aspects of crypt architecture and physiology would facilitate our understanding the impact of drugs, foods and microbial metabolites on the intestine. To address the limitations of previously reported intestinal in vitro platforms, we developed ...

Iron(II) coordination polymer catalysed hydroboration of ketones
Catalytic hydroboration of ketones with pinacolborane was achieved by a 2D iron(II) coordination polymer (CP) of a divergent 4,2′;6′,4′′-terpyridine(tpy) derivative under mild conditions with high efficiency. This solid iron catalyst system is more active towards hydroboration of ketones than aldehy...

Different bending models predict different dynamics of sedimenting elastic trumbbells
The main goal of this paper is to examine theoretically and numerically the impact of a chosen bending model on dynamics of elastic filaments settling in a viscous fluid under gravity at low-Reynolds-number. We use the bead-spring approximation of a filament and Rotne-Prager mobility matrix to descr...

In situ atomic-scale observation of inhomogeneous oxide reduction
We report in situ atomic-scale transmission electron microscopy observations of the surface dynamics during Cu2O reduction. We show inhomogeneous oxide reduction caused by the preferential adsorption of hydrogen at step edges that induces oxygen loss and destabilizes Cu atoms within the step edge, t...

A well-grown [small beta]-Ga2O3 microrods array transformed by GaOOH on Si (100) substrate and growth mechanism study
Simple two step hydrothermal methods are introduced to succefully fabricate the well-grown β-Ga2O3 microrods array converted by GaOOH on Si (100) substrate without other heterogeneous layers, which overcome the relatively large surface energy. Different hydrothermal conditions are designed to invest...

A fluorometric skin-interfaced microfluidic device and smartphone imaging module for in situ quantitative analysis of sweat chemistry
The rich composition of solutes and metabolites in sweat and its relative ease of collection upon excretion from skin pores make this class of biofluid an attractive candidate for point of care analysis. Wearable technologies that combine electrochemical sensors with conventional or emerging semicon...

Directed ortho C-H borylation catalyzed by Cp*Rh(III)-NHC complex
Cp*Rh(NHC) complexes with bulky chiral bidentate NHC-carboxylate ligands were efficiently synthesized and fully characterized including solid-state structures. The new complexes demonstrated high selectivity in the pyridine-directed ortho-C-H borylation of arenes under mild conditions....

Tetranuclear and dinuclear phenoxido bridged copper complexes based on unsymmetrical thiosemicarbazone ligands
We report on the synthesis of new dinucleating phenol-based “end-off” compartmental ligands HLMeH and HLMe2 bearing two different binding sites, one bis(2-methylpyridyl)aminomethyl (BPA) and one thiosemicarbazone (TSC) site, and their corresponding copper(II) complexes 1t and 2d. With the ligand HLM...

Synthesis and structure of arylselenium(II) and aryltellurium(II) cations based on rigid 5-tert-butyl-1,3-bis-(N-pentylbenzimidazol-2[prime or minute]-yl)benzenes
The transmetalation reactions of a mercury precursor, [Pentyl(N^C^N)HgCl] (19), with selenium halides (SeCl4, SeBr4, and SeCl2) were attempted to obtain the corresponding organoselenium trichloride [Pentyl(N^C^N)SeCl3], tribromide [Pentyl(N^C^N)SeBr3], and monochloride [Pentyl(N^C^N)SeCl], respectiv...


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