TITLE

Analysis of silica hydride and surface hydrosilation reactions by solid-state NMR in the preparation of p-chlorobenzamide bonded silica phase

AUTHOR(S)
Lynch, B.; M�ller, G. H.; Healy, L. O.; Glennon, J. D.; Pursch, M.; Albert, K.
PUB. DATE
November 2003
SOURCE
Analytical & Bioanalytical Chemistry;Nov2003, Vol. 377 Issue 6, p1014
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
29Si and 13C CP-MAS NMR spectroscopy was used to follow the conversion of native silica to a p-chlorobenzamide bonded silica material. The benzamide bonded phase was prepared via a hydrosilation reaction of a hydride silica intermediate with p-chloro-N-allylbenzamide. Solid-state NMR was used to show the disappearance of reactive surface hydride species (MH) and to identify newly formed bonded chemical species on the silica surface. DRIFT spectroscopy, elemental analysis, and specific surface-area determinations (BET) of the prepared phases are also reported.
ACCESSION #
15124804

 

Related Articles

  • Initial stages of the interaction of sodium and cesium with gold. Ageev, V. N.; Afanas’eva, E. Yu. // Physics of the Solid State;Dec2006, Vol. 48 Issue 12, p2347 

    The desorption of Cs and Na atoms from the corresponding layers applied to a gold film deposited on textured tungsten ribbon with a preferred orientation of the (100) surface is studied by thermal desorption spectroscopy with the products of thermal desorption scanned on a pulsed time-of-flight...

  • Jet-cooled spectroscopy of transition metal containing polyatomic molecules: The visible spectrum of yttrium imide. Simard, B.; Balfour, W. J.; Vasseur, M.; Hackett, P. A. // Journal of Chemical Physics;9/15/1990, Vol. 93 Issue 6, p4481 

    Laser vaporization of yttrium metal in a molecular beam apparatus using He/ammonia (14NH3, 15NH3, 14ND3) mixtures as carrier gas has led to the observation of several new vibronic bands in the 500–700 nm region, which are attributed to the yttrium imide, Y–N–H, molecule. The...

  • Highly enantioselective isomerization of primary allylic alcohols catalyzed by (P,N)-iridium complexes. Mantilli, Luca; Gérard, David; Torche, Sonya; Besnard, Céline; Mazet, Clément // Pure & Applied Chemistry;Jul2010, Vol. 82 Issue 7, p1461 

    The catalytic asymmetric isomerization of allylic amines to enamines stands out as one of the most accomplished and well-studied reactions in asymmetric catalysis as illustrated by its industrial application. In contrast, the related asymmetric isomerization of primary allylic alcohols to the...

  • Michael Reactions Catalyzed by Basic Alkylamines and Dialkylaminopyridine Immobilized on Acidic Silica—Alumina Surfaces. Motokura, Ken; Tomita, Mitsuru; Tada, Mizuki; Iwasawa, Yasuhiro // Topics in Catalysis;Jun2009, Vol. 52 Issue 6/7, p579 

    Acid–base bifunctional catalysts were prepared by immobilization of basic amines on acidic silica–alumina (SA) surfaces. Silane-coupling reagents with various amino-functional groups, such as primary, secondary, and tertiary alkylamines, alkyldiamine, and dialkylaminopyridine, were...

  • COMPARISON OF MASS LOSS RATE IN REACTION OF SILICA WITH CARBON FROM DIFFERENT INVESTIGATION RESULTS. WĘGRZYN, J. // Metalurgija;2015, Vol. 54 Issue 3, p579 

    In the process of carbothermic reaction of SiO2 + mC, key reactions appear on the surfaces of both SiO2 and C grains. However, the values of these surfaces are not known. Assuming the simplest case, quartzite and carbon grains are spheres, total surfaces of reaction were calculated for grains of...

  • Organically Modified Silica with Pyrazole-3-carbaldehyde as a New Sorbent for Solid-Liquid Extraction of Heavy Metals. Radi, Smaail; Tighadouini, Said; Bacquet, Maryse; Degoutin, Stéphanie; Cazier, Francine; Zaghrioui, Mustapha; Mabkhot, Yahia N. // Molecules;Jan2014, Vol. 19 Issue 1, p247 

    A new chelating matrix, SiNP, has been prepared by immobilizing 1.5-dimethyl-1H-pyrazole-3-carbaldehyde on silica gel modified with 3-aminopropyltrimethoxysilane. This new chelating material was well characterized by elemental analysis, FT-IR spectroscopy, cross polarization magic angle spinning...

  • Spectral study of the catalytic reaction of hydrosiloxanes with vinylsiloxanes. Vekki, D.; Viktorovskii, I.; Skvortsov, N. // Russian Journal of General Chemistry;Sep2004, Vol. 74 Issue 9, p1321 

    1H,13C, and IR spectroscopy and gas chromatography-mass spectrometry were used to study addition of hydrosiloxanes to vinylsiloxanes in the presence of Pt(II) complexes. Along with hydrosilylation, dehydrocondensation and disproportionation of hydrosiloxanes occur.

  • Catalytic properties of antimony-SBA-15 materials in the benzylation of aromatics reactions. Bachari, K.; Touileb, A.; Cherifi, O. // Kinetics & Catalysis;May2009, Vol. 50 Issue 3, p407 

    Antimony-containing mesoporous SBA-15 with different Si/Sb ratio has been synthesized using a post-treatment procedure with an aqueous solution of SbCl3 and characterized by elemental analysis, XRD method, N2 adsorption measurements (BET and BJH theory) and FTIR spectroscopy. The benzylation of...

  • Electrochemical gold deposition from sulfite solution: application for subsequent polyaniline layer formation. Baltrūnas, Gintaras; Valiūnienė, Aušra; Vienožinskis, Justas; Gaidamauskas, Ernestas; Jankauskas, Teofilis; Margarian, Žana // Journal of Applied Electrochemistry;Nov2008, Vol. 38 Issue 11, p1519 

    Electrochemical gold deposition from sulfite solutions was studied by means of voltammetry, EIS and EQCM. A gold film electrode was used for polyaniline layer formation by electrochemical oxidation of aniline. The standard electrochemical reduction potential of the reaction [Au(SO3)2]3− +...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics