Homogeneous organic reactions as mechanistic probes in supercritical fluids

Article Abstract:

Several studies have been carried out to analyze the reactions of probes of molecular structure and its influence on reactivity in supercritical fluids. A number of these studies have examined the homogeneous reactions of organic compounds to determine the effects of solvent structure. Results indicated that primary effects on reaction rates, selectivities and mechanisms can be differentiated. In addition, solvent shells do not support their integrity long enough to generate cage effects in the decomposition process.

Supercritical fluid chromatography, Solvents

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Organic photoconductive materials: recent trends and developments

Article Abstract:

The photogeneration mechanisms, electronic-transfer processes, research patterns, potential applications and technical knowledge for other electronic applications of various classes of organic photoconductors are presented. Studies of organic photoconductors are focused for use as photoreceptors in the photocopying industry and laser printers. Development of photoconductors tailored for laser applications, infrared-sensitive photoconductors in particular is necessary.

Phthalocyanins, Photosensitizing compounds, Photosensitizing agents, Photoconductivity, Azo compounds

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The triisopropylsilyl group in organic chemistry: just a protective group, or more?

Article Abstract:

The triisopropylsilyl (TIPS) group significantly differs from other R3Si groups primarily when the incremental structure difference affects reactions and TIPS generates a synthetically useful effect. The property of bulkiness in TIPS generates certain useful steric effects but many of the effects are not understood. TIPS is becoming more commonly used because of its steric effects and ease of introduction and removal.

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