Rectifiers organic

R. M. Metzger and C. A. Panetta, Langmuir-Blodgett trims of potential organic rectifiers, in Molecular Electronics Science and Technology, A. Aviram and A. Bross, Eds., Engineering Foundation, New York 1989, pp. 293-300. 

REVIEW OF THE ORGANIC RECTIFIER PROJECT LANGMUIR-BLODGETr... 

MOLECULAR DEVICES THAT DEPEND ON BULK PROPERTIES Bulk Organic Rectifiers... 

After much preliminary work, the first organic rectifier was measured " and many other unimolecnlar rectifiers followed, as discussed below. Several other significant results of UE should also be highlighted ... 

Absolute ethyl alcohol. Ethyl alcohol of a high degree of purity is frequently required in preparative organic chemistry. For some purposes alcohol of ca. 99 -5 per cent, purity is satisfactory this grade may be purchased (the absolute alcohol of commerce), or it may be conveniently prepared by the dehydration of rectified spirit with quicklime. Rectified spirit is the constant boiling point mixture which ethyl alcohol forms with water, and usually contains 95 6 per cent, of alcohol by weight. Wherever the term rectified spirit is used in this book, approximately 95 per cent, ethyl alcohol is to be understood. 

Extremely dry (or super-dry ) ethyl alcohol. The yields in several organic preparations e.g., malonic ester syntheses, reduction with sodium and ethyl alcohol, veronal synthesis) are considerably improved by the use of alcohol of 99-8 per cent, purity or higher. This very high grade ethyl alcohol may be prepared in several ways from commercial absolute alcohol or from the product of dehydration of rectified spirit with quicklime (see under 4). 

Organic substances on the skin. Wash freely with rectified spirit, then with soap and warm water. 

The size-exclusion and ion-exchange properties of zeoHtes have been exploited to cause electroactive species to align at a zeoHte—water interface (233—235). The zeoHte thus acts as a template for the self-organization of electron transfer (ET) chains that may find function as biomimetic photosynthetic systems, current rectifiers, and photodiodes. An example is the three subunit ET chain comprising Fe(CN)g anion (which is charge-excluded from the anionic zeoHte pore stmcture), Os(bipyridine)3 (which is an interfacial cation due to size exclusion of the bipyridine ligand), and an intrazeoHte cation (trimethylamino)methylferrocene (F J ). A cationic polymer bound to the (CN) anion holds the self-assembled stmcture at an... 

The organic phase is decanted, washed in NaCl saturated water and dried on anhydrous Na2S04 the ether is distilled and the residue is rectified in vacuum to obtain 361 g of the product. Yield = 54%. 

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