Selfhydrogenation of unsaturated hydrocarbons on transition metals partially covered with preadsorbed oxygen

The carbonylation of unsaturated hydrocarbons, alcohols, organic halides and other substrates catalyzed by transition metals, salts of transition metals and organometallic complexes is a wide used synthesis method of new carbonyl, carboxyl and alkoxy carbonyl containing compounds including creation or modificationt of heterocycles. The data about synthesis of heterocycles at carbonylation of acetylenic compounds have been appeared at last 20 years and are demonstrated in our review. Introduction of carbon monoxide in the catalytic reactions of acetylenic compounds permits to obtain in oneput process the diverse heterocycles, having carbonyl, carboxyl or alkoxycarbonyl substitutes or containing these fragments inside of heterocycles.

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ChemInform Abstract: Electronic States of π-Complexes of d0Early Transition Metals and Energy Transfer to Unsaturated Hydrocarbons

ChemInform ◽

10.1002/chin.200823274 ◽

2008 ◽

Vol 39 (23) ◽

Author(s):

G. V. Loukova ◽

V. A. Smirnov

Keyword(s):

Energy Transfer ◽

Transition Metals ◽

Electronic States ◽

Unsaturated Hydrocarbons

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The Reactions of Carbene Complexes of Transition Metals with Unsaturated Hydrocarbons

Russian Chemical Reviews ◽

10.1070/rc1984v053n07abeh003087 ◽

1984 ◽

Vol 53 (7) ◽

pp. 672-682 ◽

Cited By ~ 3

Author(s):

A I Syatkovskii ◽

B D Babitskii

Keyword(s):

Transition Metals ◽

Unsaturated Hydrocarbons ◽

Carbene Complexes ◽

Complexes Of Transition Metals

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Precipitation in silicon: Microanalysis

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100104431 ◽

1988 ◽

Vol 46 ◽

pp. 474-475

Author(s):

R.W. Carpenter

Keyword(s):

Transition Metals ◽

Spatial Resolution ◽

Thin Foil ◽

Precipitation Reaction ◽

High Current ◽

Reaction Products ◽

Carbon And Nitrogen ◽

Dielectric Layers ◽

Precipitation Processes ◽

Areas Of Interest

Interest in precipitation processes in silicon appears to be centered on transition metals (for intrinsic and extrinsic gettering), and oxygen and carbon in thermally aged materials, and on oxygen, carbon, and nitrogen in ion implanted materials to form buried dielectric layers. A steadily increasing number of applications of microanalysis to these problems are appearing. but still far less than the number of imaging/diffraction investigations. Microanalysis applications appear to be paced by instrumentation development. The precipitation reaction products are small and the presence of carbon is often an important consideration. Small high current probes are important and cryogenic specimen holders are required for consistent suppression of contamination buildup on specimen areas of interest. Focussed probes useful for microanalysis should be in the range of 0.1 to 1nA, and estimates of spatial resolution to be expected for thin foil specimens can be made from the curves shown in Fig. 1.

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