A series of alkynyl maleimides were prepared via one-step cross-coupling reaction using bromomaleimide and acetylenes under the Sonogashira conditions, affording 1-((4-methoxyphenyl)-3-alkynes)-1H-pyrrole-2,5-diones in good to high yields. These products were subsequently converted in the corres...

In this study, several resveratrol analogs were synthesized and evaluated in search of a more effective anti-proliferative resveratrol analog. Among the evaluated resveratrol analogs, we have identified N-(4-methoxyphenyl)-3,5-dimethoxybenamide (MPDB) as a potent anti-proliferative compound. Tre...

(Pyrazole)nickel dibromide complexes, (3,5-Me2pz)2NiBr2 (1), (3-Mepz)4NiBr2 (2), (pz)4NiBr2 (3) and (3,5-tBu2pz)2NiBr2 (4), were prepared by the reaction of the appropriate pyrazole with (DME)NiBr2. Solid-state structures of these complexes show a direct relation between the steric bulk of the p...

The temperature dependence of halogen NQR frequencies was determined for various methylammonium hexahalometallates(IV): (MA)2MCI6; M=Se, Pd, So, Pt, and Ph, (MA)2MBrb6; M= Se, Pd, Sn, and Pt, and (MA)2PtI6. A single resonance line for each isotope in the chlorine and the bromine complexes and on...

Molecular dynamics (MD) simulations of a dipalmitoylphosphatidylcholine (DPPC) bilayer and its neutral inverse-phosphocholine equivalent (DPCPe) were performed to find salt-induced effects on their surface structure and the nature of ion-lipid interactions. We found that the area per lipid is no...

Real-time cloud information is produced by the USAF 3D/RT Nephanalysis at a resolution of ∼46 km and every 3 h for the globe. In this paper, the analysis procedure and the character of the resulting archives are described. 3D/RT Nephanalysis data have been utilized in several studies at global ...

The United States Air Force (USAF) operates one of the largest multi-echelon inventory systems in the world. Individual bases hold inventory to meet the demands of their customers at the base. These bases are re-supplied by central depots that are, in turn, re-supplied by vendors. The Air Force ...

Enthalpies of solution of potassium hexafluororhenate(IV) and of potassium hexafluororuthenate(IV) in water at 298.2K have been determined by direct calorimetry. They are +63.0 ± 0.3 and +59.4 ± 1.5 kJ mol-1 respectively. From these results single ion hydration enthalpies of −999 and −967 kJ m...

The possibility of hydrogen generation by hydrolysis of magnesium borohydride and its ammoniates was explored. Results show that catalyst-free Mg(BH4)2 can generate 1700 mL (H2)·g−1 in 1 min, 2760 mL (H2)·g−1 in 2 h, and 3004 mL (H2)·g−1 in 5 h without any diborane (B2H6) emission. Mg(BH4)2 p...

Gold deposits on p-silicon substrates from chloroauric acid solutions have been obtained by the electroless photochemical deposition technique. A low-power incident laser beam (1 mW) was used with the intention of preventing the thermal decomposition of the precursor compound in the solution or ...

The magnetic adsorbent of Fe3O4@SiO2 core-shell nanoparticles modified with thiol group was synthesized for chloroauric ([AuCl4]−) adsorption. The Fe3O4 nanoparticles were prepared by co-precipitation method under mechanical stirring and coated with SiO2 by acid hydrolysis of Na2SiO3 under N2 pu...

Highly conductive polythiophene films with electrical conductivity of 71.7 S/cm were prepared by using a facile solution-processing method with HAuCl4 as a dopant. The density of free charge carriers for thus-prepared polythiophene films was estimated to be 4.48 × 1021/cm3. In addition, upon do...

Supramolecular assembly is created with single strand DNA and chloroauric acid in aqueous phase using well known concept-isoelectric point. Further, polyindole is formed chemically by oxidation of indole using this assembly. Using combination of measurements we find that the resulting polyindole...

A simple, green, stable, and acidic solution was developed based on choline chloride (ChCl) and chloroauric acid (HAuCl4) for immersion gold deposition onto electroless nickel substrate by galvanic displacement process. The relationships between gold (Au) deposition rate and solution parameters ...

The Turkevich method for synthesizing gold nanoparticles, using sodium citrate as the reducing agent, is renowned for its ability to produce biocompatible colloids with mean size >10 nm. Here we show that monodisperse gold nanoparticles in the 5–10 nm size range can be synthesized by simply rev...

We report that gold nanocrystals can be prepared from vapor phase using chloroauric acid (HAuCl4) as the precursor. By tuning the vapor-phase deposition parameters, the size and space distribution of the gold nanocrystals can be well controlled on substrates. Systematic control experiments demon...

The citrate-reduction method is extensively used to prepare gold colloids particularly in the application of biological and medical areas. Tartrate as a substitute of citrate was first employed to prepare gold colloids from chloroauric acid due to its similar chemical structures to citrate. The ...

Silica aerogels have been shown to be superior at capturing hypervelocity projectiles with minimal alteration. On the basis of what is known about the abundance of natural projectiles in low Earth orbit (LEO), aerogel collectors flown in LEO should collect numerous scientifically interesting ext...

Five different preparation methods have been developed to synthesize titanium pyrophosphate (TiP2O7) which are active and selective catalysts for oxidative dehydrogenation of n-butane into butene and butadiene. The crystallinity, surface area, reducibility by n-butane and acid–base properties a...

The crystal and molecular structures of dichloro- (2,2′-bipyridyl)tin(II), dichloro(1,10-phenanthroline)tin(II) and dichlorobis(8-hydroxyquinolinato)tin(IV) have been determined by means of single crystal X-ray diffraction. The coordination geometry of the two tin(II) complexes is considerably ...