Design, Synthese und In-situ-Charakterisierung neuer Feststoffkatalysatoren

Abstract

Die exakte atomare Architektur des katalytisch aktiven Zentrums steht im Zentrum des hier vorgestellten Ansatzes zum Design von Feststoffkatalysatoren. Er lieferte eine große Bandbreite neuartiger Katalysatoren unter anderem für regioselektive, formselektive und enantioselektive Reaktionen, für die effiziente Isomerisierung und Hydrierung von Alkenen sowie für die Oxidation von Alkanen an den endständigen Positionen. Bei allen Katalysatoren handelt es sich um mikroporöse oder mesoporöse Festkörper, deren Vorteile eine hohe spezifische Oberfläche und die Möglichkeit, feine Veränderungen in der Struktur und der Zusammensetzung durchzuführen, sind.

Open‐Framework Structures of Transition‐Metal Compounds

“…[1][2][3][4][5][6][7][8][9][10][11][12] Open-framework solids having large channels and cavities have been exploited for catalysis and related studies. [1][2][3][4][5][6][7][8][9][10][11][12] Open-framework solids having large channels and cavities have been exploited for catalysis and related studies.…”

Three-Dimensional Transmission Electron Microscopic Observations of Mesopores in Dealuminated Zeolite Y

“…Despite the development of a mesopore system, 2D-and 3D-TEM images show that the crystals Fluorescence Detection of Specific RNA Sequences Using 2'-Pyrene-Modified Oligoribonucleotides** Kazushige Yamana,* Hirofumi Zako, Kentarou Asazuma, Reiko Iwase, Hidehiko Nakano, and Akira Murakami Fluorescence detection of specific RNA sequences is an area of much current interest and activity. It is important for the investigation of the regulatory mechanisms of gene expression [1,2] and diagnostic analysis of infectious organisms from viruses or bacteria. [3,4] Recent works have focused on the design and synthesis of fluorescent oligonucleotides that exhibit an enhanced signal upon hybrid formation, [5±14] since these type of probes can be used in homogeneous, as well as heterogeneous, assays.…”

Fluorescence Detection of Specific RNA Sequences Using 2′-Pyrene-Modified Oligoribonucleotides

“…[22] The fluorescence and melting data for hybrids of the pyrene-modified RNA with RNA possessing a single base In recent years, combinatorial chemistry has been developed and applied by the pharmaceutical industry to rapidly synthesize and screen thousands of compounds in libraries for drug discovery and optimization. [1,2] Combinatorial approaches have also led to the discovery of more efficient superconducting, [3] photoluminescent, [4] magnetoresistive, [5] dielectric, [6] and polymeric [7] materials, and the development of heterogeneous catalysts. [8] Moreover, promising results in the application of combinatorial methods to homogeneous mismatch are shown in Table 2.…”

“…It is important for the investigation of the regulatory mechanisms of gene expression [1,2] and diagnostic analysis of infectious organisms from viruses or bacteria. [3,4] Recent works have focused on the design and synthesis of fluorescent oligonucleotides that exhibit an enhanced signal upon hybrid formation, [5±14] since these type of probes can be used in homogeneous, as well as heterogeneous, assays.…”