The reaction of pentachlorophenyllithium(I) with dichlorodiphenylsilane at −65° gave (pentachlororphenyl) diphenylchlorosilane (II). A similar reaction of (I) with phenyltrichlorosilane in 1:1,2:1 or 3:1 ratio gave bis(pentachlorophenyl)phenylchlorosilane (III), (II) and (III) were hydrolyzed u...

Reactive oxygen species (ROS) modulate the growth of neural stem/precursor cells (NS/PCs) and participate in hippocampus-associated learning and memory. However, the origin of these regulatory ROS in NS/PCs is not fully understood. In the present study, we found that Nox4, a ROS-producing NADPH ...

In this work, a label-free electrochemical biosensor is fabricated for the detection of nereistoxin (NRT)-related insecticides based on NRT binding-triggered conformational switching of DNAzyme and micropipette tip-based miniaturized homogeneous electrochemical device. NRT-related insecticides a...

A simple colorimetric method using gold nanoparticles (AuNPs) was developed as an efficient strategy for specific and sensitive detection of insecticides that are analogs of nereistoxin (NRT). The AuNPs were synthesized by a surfactant-free sonochemical reaction with ultrasonication at 430 kHz. ...

The kinetics of ethyl group decomposition on Si(111)7 × 7 were measured using laser-induced thermal desorption techniques following the adsorption of diethylsilane (DES), diethylgermane (DEG), and ethylsilane (ES). Earlier infrared spectroscopic studies have shown that ethyl species are present...

Diethylgermane [(CH3CH2)2GeH2], (DEG), is a potential molecular precursor for germanium deposition on silicon surfaces. In this study, Fourier transform infrared (FTIR) transmission spectroscopy was employed to examine the adsorption and decomposition of DEG on high surface area porous silicon s...

A series of three triphenyl hydride compounds was investigated in a range of solvents by Fourier transform infrared (FTIR), IR pump-probe, and two-dimensional IR (2D-IR) spectroscopies. The mass of the central atom of the three compounds was varied systematically down the group 14 elements of si...

The kinetics and mechanisms of thermally initiated (using 2,2′-azobisisoburyronitrile (AIBN) as initiator) radical homopolymerizations of a series of maleimides, including N-phenymaleimide (PHMI) [1-phenyl-1H-pyrrole-2,5-dione]; N-n-hexylmaleimide (nHMI) [1-(n-hexyl)-1H-pyrrole-2,5-dione]; and ...

Monomer mixture of styrene (St) and N-cyclohexylmaleimide (ChMI) and initiator benzoyl peroxide (BPO) were first impregnated into isotactic polypropylene (iPP) films simultaneously using supercritical carbon dioxide (SC CO2) as a solvent and swelling agent at 35.0 °C. The composites were obtain...

The selectivity of hydrogenolysis of 1,1-dimethylcyclopropane and ethylcyclopropane has been studied at 80–150 °C in a pulse-microreactor at atmospheric pressure in the presence of hydrogen and nickel containing catalysts. The method of preparation of the catalysts and the supports used can in...

The microwave spectrum of 1,1-dimethylcyclopropane has been observed and analyzed, yielding the following rotational constants: A = 6135.257 ± 0.016 MHz, B = 5203.342 ± 0.015 MHz, C = 3810.509 ± 0.019 MHz. Measurements of the Stark effect for this C2V molecule led to an electric dipole moment...

The i.r. and Raman spectra of 1,1-dimethylcyclopropane and 1,1-dimethyl-d6-Cyclopropane have been investigated from 100 to 4000 cm−1. Infrared spectra are reported in the solid and vapor states and Raman spectra are reported for all three physical states. Data from the normal and deuterated samp...

The enthalpies of combustion of ethylcyclobutane, methylenecyclobutane, and,1-dimethylcyclopropane were measured by oxygen-bomb combustion calorimetry. The following values are reported for the standard enthalpy of combustion ΔHoo(298.15 K)/kcalth mol−1, † of these compounds in the liquid state...

The infrared spectra of cis-1,1-dichloro-2,3-dimethylcyclopropane and cis-1,1-dibromo-2,3-dimethylcyclopropane as liquids have been measured. The infrared spectrum of cis-1,1-dichloro-2,3-dimethylcyclopropane as a polycrystalline solid was also recorded from 4000 to 400 cm−1. Raman spectra of th...

The infrared spectra of trans-1,1-dichloro-2,3-dimethylcyclopropane and trans-1,1-dibromo-2,3-dimethylcyclopropane as liquids and polycrystalline solids have been measured. The gas-phase infrared spectrum of trans-1,1-dichloro-2,3-dimethylcyclopropane was also recorded from 4000 to 400 cm−1. Ram...

Hydrolysis of bis(2,2,2-trifluoroethyl) 2,2-dimethylcyclopropane-1,1-dicarboxylate with pig liver esterase afforded (1R)-2,2-dimethyl-1-(2,2,2-trifluoroethoxycarbonyl)-cyclopropane-1-carboxylic acid in high enantiomeric excess. This compound was rearranged to (1S)-2,2,2-trifluoroethyl-2,2-dimeth...

The synthesis of (1R, 2S, 3R) and (1S, 2S, 3R)-2-(N-benzoylamino)-1-(2-furyl)-1, 3-butandiols (15) and (16) from D-threonine is described. The assignment of absolute configuration of the newly formed asymmetric center at C-1 was based on the 1H-NMR spectra of O-isopropylidene derivatives 17 and 18.

New photosensitive 3-acyl-2-(2-furyl)thiochromones, potential components for multilayer media of archive-type optical discs, were prepared and tested for photorearrangement.

Sodium 3-ferrocenyl-5-(2-furyl)-pyrazoline-1-dithiocarbaminate (FFPD) reacts with anhydrous lanthanide chlorides in absolute ethanol to give the complexes Ln(FFPD)3·nH2O (LnLa, PrLu and Y; n=3). The ligand and its complexes were characterized by elemental analyses, IR, UV and NMR spectra, molar...

The synthesis, chemical and spectroscopic characterization of four novel (2S,3S)-2,3-diphenyl-5,6-diheteroaryl-2,3-dihydropyrazines containing pyridine (DPPn2), pyrrole (DPPy2), thiophene (DPTh2) and furan (DPFu2) units were presented. The experimental absorption spectra in methanol exhibit very...