Structure pf Ni(II) and Ru(II) ammine complexes grafted onto mesoporous silicate sieve

Article Abstract:

The ion exchange of Ni and Ru ammine complexes from basic aqueous solution results in covalent attachment of isolated metal centers in the pores of MCM-41 with minimal interference of cluster formation is reported. The formation of layered Ni silicate structures, a dominant product in the Ni grafted amorphous silica was not observed.

Cluster analysis, Aqueous solution reactions

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Selective modification of the channel entrances of zeolite L with triethoxysilylated Coumarin

Article Abstract:

The insertion of a triethoxysilylated coumarin dye into the channels of zeolite L from CH2Cl2 is examined. The insertion process leads to a selective modification of the zeolite L channel entrances through the formation of covalent siloxane bonds between dye and zeolite upon refluxing in toulene.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Industrial inorganic chemicals, not elsewhere classified, Zeolites, Coumarin, Coumarins

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Structure of the silica phase extracted from silica/(TPA)OH solutions containing nanoparticles

Article Abstract:

Subcolloidal particles of a few nanometers in diameter are analyzed during the clear-solution synthesis of silicate-1. A poorly defined particle shape is suggested in the result of the research.

Analysis, Chemical synthesis

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