Mass densityLyotropic liquid crystalsNematic phaseCholesteric phaseMicellar packingDL-racemic mixtureL-enantiomerPeriodic volume of micelleLyotropic nematic and cholesteric mixtures were produced by dissolving amino acid based racemic surfactants, potassium N-dodecanoyl-DL-alaninate (DL-KDDA) and potassium N-...
The aqueous phase was extracted with AcOEt (3 × 50 ml), dried over Na2SO4 and concentrated to afford 2.3 g (quantitative yield) of the title Structure 6. Structure 5 (0.8 g, 2.9 mmol) in dimethylformamide (10 ml) was added to Structure 6 (0.9 g, 3.7 mmol). The mixture was ...
After incubation while shaking at 28°C for 4 days, the culture was filtered. The supernatant was extracted with 1 ml of n-hexane or pentane and the organic layer was dried over Na2SO4 and filtered through a 1-cm column of Na2SO4 in a Pasteur pipette. A 1 to 5-ml portion of ...
The balanced equation is: 2AgNO_3 (aq) + MgCl_2 (aq) \rightarrow 2AgCl (s) + Mg(NO_3)_2. a. What is the mass of the solid Write the molecular, ionic, and, net ionic equation for K_2CrO_4 + AgNO_3 (aq). The chemical ...
Non-linear piezoelectric vibration energy harvesting from a vertical cantilever beam with tip mass. A common energy harvesting device uses a piezoelectric patch on a cantilever beam with a tip mass. The usual configuration exploits the linear resonance of... Friswell,I Michael,Ali,... - 《...
ofA催化催化期刊分子催化 系统标签: catalysisbinol催化moleculararyljournal JournalofMolecularCatalysisA:Chemical256(2006)256–260Efficientcopper-catalyzedaminationofarylhalideswithaminesandNHheterocyclesusingrac-BINOLasligandDiZhu,RongliangWang,JinchengMao,LeiXu,FanWu,BoshunWan∗DalianInstituteofChemicalPhysics,...
Agilent Quadrupole 6120 LC/MS was utilized to record the mass spectra of the synthesized compounds with the aid of electrospray ionization (ESI) source. Silica gel thin layer chromatography plates with fluorescent indicator at 254 nm were acquired from Merck and visualization was accom- plished ...
a All the products were characterized by 1 H NMR, IR spectroscopy and mass spectrometry b Isolated yield obtained after column chromatography B Srinivas et al /Journal ofMolecular Catalysis A:Chemical 261 (2007)1–5 3 Table 2 Synthesis of,-amino alcohols in the presence of,-CD in water ...
For energy storage application, both ultrahigh surface area and conductivity can be achieved concurrently with substantial ion-reserved accommodation and rapid mass-transfer expressway. As a demonstration, a flexible solid-state supercapacitor based on the surface-tailored carbon fiber was developed with ...
The rate of precipitation of α-lactalbumin is increased significantly in the presence of Na2SO4 compared with NaCl. However, in the former case, α-crystallin is unable to prevent this aggregation and precipitation except in the presence of a large excess of α-cry...