Category: 14799-93-0

Akapo, S. O. published the artcileSyntheses of stationary phases for reversed-phase HPLC: comparison of the fluidized bed technique with the organic solvent process, Recommanded Product: Dichloro(methyl)(octyl)silane, the publication is Journal of Chromatographic Science (1994), 32(3), 86-92, database is CAplus.

Chem. bonded stationary phases were prepared by fluidized bed and conventional organic solvent (toluene) bonding processes, resp., using mono-, di-, and trifunctional n-octylchlorosilanes. Solid-state ¹³C CPMAS NMR spectroscopic studies show that the surface structure of the fluidized bed packings consists only of the expected silane skeleton. In addition to the silane signals, the organic solvent packings give unexpected -OMe absorbance at ∼50 ppm, which arises from a possible side reaction between the methanol washings and the residual chlorine atoms. Chromatog. studies show that the fluidized bed packings possess higher plate numbers and superior retention characteristics for hydrocarbon solutes. This is probably caused by their higher carbon load and homogeneous distribution of the alkyl ligands on the silica surface as a result of better accessibility of the silane mols. to the surface silanol groups. In comparison with the organic solvent process, the fluidized bed technique produces a more reproducible packing regardless of the functionality of the silanizing agent.

Journal of Chromatographic Science published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Recommanded Product: Dichloro(methyl)(octyl)silane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Akapo, S. O. published the artcileInfluence of temperature and mobile phase composition on retention properties of oligomeric bonded phases in reversed-phase liquid chromatography (RPLC), Safety of Dichloro(methyl)(octyl)silane, the publication is Chromatographia (1997), 44(3/4), 135-144, database is CAplus.

The effect of temperature and mobile phase composition (methanol-water) on the retention behavior of an oligomeric series of n-octylsilyl bonded phases in reversed-phase liquid chromatog. was investigated. Plots of In k against 1/T (van’t Hoff plot) and the enthalpy of transfer (ΔH°) yields linear relationships under the conditions studied. The ΔH° values of the aromatic hydrocarbons and n-alkyl benzoates are higher than those of the polar compounds due to their higher level of interaction with the stationary phase. A linear plot of ΔH° vs. ΔS° suggest that the retention process, which is essentially controlled by non-specific (dispersive) interactions between the solutes and the bonded ligands, is identical for all cases evaluated. The existence of similar retention mechanisms is confirmed by the constant value of the enthalpy-entropy compensation temperature of the columns for a given class of compounds As expected, decreasing the methanol content (% volume/volume) of the mobile phase results in increased eluate retention times. The methylene and Ph selectivities are found to be independent of the carbon content of the stationary phases and varied only with the eluent composition In addition to their high stability under aggressive mobile phase conditions as previously reported, the results of this study generally showed that the solute retention process on oligomeric phases are similar to those exhibited by the conventional reversed phases.

Chromatographia published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Safety of Dichloro(methyl)(octyl)silane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Chibowski, Emil J. published the artcileSurface free energy and wettability of silyl layers on silicon determined from contact angle hysteresis, COA of Formula: C9H20Cl2Si, the publication is Advances in Colloid and Interface Science (2005), 113(2-3), 121-131, database is CAplus and MEDLINE.

Using the literature data [A.Y. Fadeev and T.J. McCarthy, Langmuir 15(1999) 3759; A.Y. Fadeev and T.J. McCarthy, Langmuir 16(2000) 7268] of the advancing and receding contact angles for H₂O, diiodomethane and hexadecane measured on various hydrophobic silyl layers (mostly monolayers) produced on Si wafers the apparent surface free energies γ^tot_s were calculated by applying new model of the contact angle hysteresis interpretation. For the same silyl layer, the calculated γ^tot_s values to some degree depended on the probe liquid used. Therefore, thus calculated the surface free energies should be considered as apparent ones. Also, also the values of the dispersion component γ_s^d of these layers depend on the probe liquid used, but to a less degree. This must be due to the strength of the force field originating from the probe liquid and the spacing between the interacting mols. The relations between γ^tot_s and γ^d_s are discussed from the equations derived. It may be postulated that applying proposed model of the contact angle hysteresis and calculating the apparent total surface free energies and the dispersion contributions better insight into wetting properties of the silyled Si surface can be achieved.

Advances in Colloid and Interface Science published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, COA of Formula: C9H20Cl2Si.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Yang, Hu published the artcileHydrosilylation of alkenes catalyzed by MCM-48 supported chitosan-platinum complex, Formula: C9H20Cl2Si, the publication is Hangzhou Shifan Daxue Xuebao, Ziran Kexueban (2012), 11(3), 217-221, database is CAplus.

A new Pt/CS-MCM-48 catalysts was prepared from chitosan supported on MCM-48. The catalyst was characterized by XRD, IR and TG. The results indicated that coordination bond between platinum and nitrogen atom of chitosan was formed. Pt/CS-MCM-48 catalyst has favorable catalytic performance for the hydrosilylation of alkenes, the regioselectivity of adduct is above 90%, and the catalyst can be reused for 14 times without noticeable loss of activity.

Hangzhou Shifan Daxue Xuebao, Ziran Kexueban published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C11H24O3, Formula: C9H20Cl2Si.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Bai, Ying published the artcileUse of functionalized PEG with 4-aminobenzoic acid stabilized platinum nanoparticles as an efficient catalyst for the hydrosilylation of alkenes, Synthetic Route of 14799-93-0, the publication is Journal of Colloid and Interface Science (2013), 428-433, database is CAplus and MEDLINE.

A catalyst containing functionalized polyethylene glycol with 4-aminobenzoic acid (PEG-AMB) stabilized Pt nanoparticles was synthesized and characterized, and its application in the hydrosilylation of alkenes studied. The functionalized PEG-stabilized Pt nanoparticles form a very efficient catalyst for the hydrosilylation of alkenes. The Pt nanoparticles can be fully immobilized in the PEG-AMB and recycled at least nine times without any obvious loss of catalytic activity.

Journal of Colloid and Interface Science published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Synthetic Route of 14799-93-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Baluta, Sylwia published the artcileEnzymatic platforms for sensitive neurotransmitter detection, Name: Dichloro(methyl)(octyl)silane, the publication is Sensors (2020), 20(2), 423, database is CAplus and MEDLINE.

A convenient electrochem. sensing pathway was investigated for neurotransmitter detection based on newly synthesized silole derivatives and laccase/horseradish-peroxidase-modified platinum (Pt)/gold (Au) electrodes. The miniature neurotransmitter’s biosensors were designed and constructed via the immobilization of laccase in an electroactive layer of the Pt electrode coated with poly(2,6-bis(3,4-ethylenedioxythiophene)-4-methyl-4-octyl-dithienosilole) and laccase for serotonin (5-HT) detection, and a Au electrode modified with the electroconducting polymer poly(2,6-bis(selenophen-2-yl)-4-methyl-4-octyl-dithienosilole), along with horseradish peroxidase (HRP), for dopamine (DA) monitoring. These sensing arrangements utilized the catalytic oxidation of neurotransmitters to reactive quinone derivatives (the oxidation process was provided in the enzymes’ presence). Under the optimized conditions, the anal. performance demonstrated a convenient degree of sensitivity: 0.0369 and 0.0256μA mM^-1 cm^-2, selectivity in a broad linear range (0.1-200) x 10-6 M with detection limits of ≈48 and ≈73 nM (for the serotonin and dopamine biosensors, resp.). Moreover, the method was successfully applied for neurotransmitter determination in the presence of interfering compounds (ascorbic acid, L-cysteine, and uric acid).

Sensors published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Name: Dichloro(methyl)(octyl)silane.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Hu, Wenbin published the artcileSuper-microporous silica-supported platinum catalyst for highly regioselective hydrosilylation, Formula: C9H20Cl2Si, the publication is Catalysis Communications (2017), 51-55, database is CAplus.

Super-microporous micelle-templated platinum on silica catalysts were successfully prepared by an improved one-pot procedure, using a water/acetonitrile/n-dodecylamine mixture The catalyst showed high surface area and narrow pore size and was further characterized by powder X-ray diffraction and inductively coupled plasma mass spectrometry. The unique super-microporous materials were proven to be highly active for the microwave-assisted hydrosilylation reaction of terminal alkenes or alkynes using dichloromethylsilane as silicon source. The super-microporous structure was beneficial for the control of hydrosilylation regioselectivity, as the selectivity to the β-adduct reached 99%. Moreover, the catalyst could be easily recovered by simple filtration and re-used seven times without appreciable loss of activity and selectivity.

Catalysis Communications published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Formula: C9H20Cl2Si.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Song, W. published the artcileMicroscopic and Macroscopic Characterization of Organosilane-Functionalized Nanocrystalline NaZSM-5, Computed Properties of 14799-93-0, the publication is Langmuir (2005), 21(15), 7009-7014, database is CAplus and MEDLINE.

Nanocrystalline NaZSM-5 zeolites with systematically varied particle sizes (15, 60, and 200 nm) were functionalized with organosilanes. Through the systematic variation of particle size and therefore external surface area of NaZSM-5, the extent of functionalization and location of functional groups were spectroscopically verified. ²⁹Si magic-angle spinning (MAS) NMR and Fourier transform IR (FTIR) spectroscopy provided conclusive evidence that the silanol groups located on the external surface of NaZSM-5 were functionalized through reaction with the organosilanes. The ²⁹Si NMR results provided quant. information about the extent of functionalization on NaZSM-5. A nitroxide spin label was adsorbed on the external surface of NaZSM-5 to probe the surface properties by ESR (EPR) spectroscopy. The macroscopic and microscopic properties, such as the behavior of functionalized NaZSM-5 in different solvents, and the sp. surface areas were also investigated. The hydrophobicity of the functionalized NaZSM-5 was found to increase relative to the parent NaZSM-5 as expected for an organic surface coating.

Langmuir published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C12H16N2O2, Computed Properties of 14799-93-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Lochmueller, C. H. published the artcileQuantitative photoacoustic spectroscopy of chemically-modified silica surfaces, Formula: C9H20Cl2Si, the publication is Analytica Chimica Acta (1980), 118(1), 101-8, database is CAplus.

The degree of surface coverage on chem.-modified silica gel was determined by using photoacoustic spectroscopy. Vibrational overtones in the near IR were employed for the examination of modified materials containing bonded aliphatic, aromatic, and aminoalkyl functions. A linear relation between photoacoustic signal amplitude and C or N content of the chem.-modified surface was obtained.

Analytica Chimica Acta published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Formula: C9H20Cl2Si.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Drake, Robert published the artcileHigh surface area polystyrene resin-supported Pt alkene hydrosilylation catalysts: ultimate performance and sting in the tail’, Computed Properties of 14799-93-0, the publication is Reactive & Functional Polymers (2004), 65-75, database is CAplus.

Two vinylbenzyl chloride (VBC)-based resins were prepared by suspension polymerization with a VBC feed in each of 5 vol%. A high level of divinylbenzene (DVB) was employed with toluene as a porogen to produce high surface areas (>600 m² g^-1) in the resins. Each resin was aminated using N,N,N’-trimethylethylenediamine and Pt loaded onto each. The so formed resin catalysts were evaluated in the hydrosilylation of oct-1-ene using methyldichlorosilane at room temperature, and in the absence of solvent. Extensive recycling and Pt leaching studies were carried out and the most active, selective and stable catalyst identified. Heterogeneous species with an overall performance superior to that a soluble K₂PtCl₆ were produced. The results also confirm that hydrosilylation is catalyzed by immobilized Pt complexes and that any concurrent alkene isomerization is due to leached soluble Pt species. Anal. of spent resin catalyst from multiple recycling experiments has shown the presence of chem. bonded oligosiloxane arising from hydrosilylation of pendent unreacted vinyl groups in the resin followed by hydrolysis and condensation when exposed to atm. moisture. This fouling of the resin is however not a problem while the resin catalysts are being recycled.

Reactive & Functional Polymers published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Computed Properties of 14799-93-0.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics