A tetra-armed cyclen ( L ) with phenylethynylmethyl groups as side-arms forms ·CH 3 CN inclusion crystals from acetonitrile–organic mixed solvents high selectivity.

Abstract The Abraham linear free energy relationship model has been used to characterize a hydrophilic interaction liquid chromatography (HILIC) silica column with acetonitrile/water and methanol/water mobile phases. Analysis by the for phases points solute volume hydrogen bond basicity as main properties affecting retention, whereas acidity, dipolarity polarizability practically do not affect ...

Although in vivo studies have shown that low-magnitude, high-frequency (LMHF) vibration (LM: < 1 ×g; HF: 20-90 Hz) exhibits anabolic effects on skeletal homeostasis, the underlying cellular/molecular regulation involved in bone adaptation to LMHF vibration is little known. In this report, we tested the effects of microvibration (magnitude: 0.3 ×g, frequency: 40 Hz, amplitude: ± 50 μm, 30 min/12...

Anhydrous tetramethylphosphonium fluoride dissolved in acetonitrile reacts slowly with the solvent under formation of (E)-2-amino-1-cyano-propene which was characterized by infrared and NMR spectroscopy. An attempted preparation of [Me3PF3]− by addition of Me3PF2 to Me4PF/acetonitrile solutions has shown that the desired reaction does not occur, but prolonged reaction times and small acetonitri...

Systematic synthesis of a number of new phenolic compounds with structures similar to vitamin E led to the identification of several sterically hindered compounds that when electrochemically oxidised in acetonitrile in a -2e(-)/-H(+) process formed phenoxonium diamagnetic cations that were resistant to hydrolysis reactions. The reactivity of the phenoxonium ions was ascertained by performing cy...

A simple, rapid "high-performance" liquid-chromatographic procedure is presented for the determination of aminoglutethimide in plasma. After precipitation of the protein with acetonitrile, an aliquot of the supernate is injected directly onto a radially compressed, reversed-phase column. The aminoglutethimide is isocratically eluted with a mobile phase of acetonitrile/water/tert-butyl ammonium ...

Vertically aligned single-walled carbon nanotube arrays were synthesized from dip-coated binary Co/Mo catalyst by no-flow chemical vapor deposition from either pure ethanol or acetonitrile as carbon feedstock. By changing to acetonitrile the mean diameter was reduced from 2.1 nm to less than 1.0 nm despite using identically prepared catalyst. The demonstrated diameter control on flat substrates...

Chemical investigation of the ethanol extract of the aerial parts of Hydrangea macrophylla collected in the Sichuan Province of China resulted in the isolation of two new cyanogenic glucosides. Their structures were elucidated as [(2R)-2-β-D-glucopyranosyloxy)-2-(3,4-dimethoxy-phenyl)] acetonitrile (1) and {(2R)-2-[α-D-glucopyranosyl(1-->6)β-D-glucopyranosyloxy]-2-(3-hydroxy-4-methoxy-phenyl)}a...