Photocatalytic hydrosilation of some dienes using M(CO)x complexes

Download
1993
Abdelqader, Wafa Yaser

Suggestions

HYBRID BEAMFORMING WITH TWO BIT RF PHASE SHIFTERS IN SINGLE GROUP MULTICASTING
Demir, Özlem Tuğfe; Tuncer, Temel Engin (2016-03-25)
In this paper, an efficient hybrid beamforming architecture combining analog and digital beamforming is proposed to reduce the number of radio frequency (RF) chains. It provides a good compromise between the higher degree of freedom of digital beamforming and hardware cost and complexity. In this hybrid system, two bit RF phase shifters are used as analog beamformers due to the fact that this enables the conversion of the combinatorial optimization problem to a continuous programming formulation. The overal...
Photo-induced chromiumcarbonyl catalyzed hydrosilylation of conjugated dienes with triethylsilane: The solvent effect
Kayran, C; Özkar, Saim; Akhmedov, VM (2003-07-01)
Photocatalytic hydrosilylation of conjugated dienes (1,3-butadiene, 2-methyl-1,3-butadiene, 2,3-dimethyl-1,3-butadiene, trans-1,3-pentadiene) with triethylsilane was studied by using Cr(CO)(5)L (L = CO, P(CH3)(3), P(OCH3)(3), P(C6H5)(3), P(C6H11)(3), NC5H5) in two very different solvents, toluene and tetrahydrofuran, for comparison with the results found in n-hexane. In toluene, the photocatalytic hydrosilylation yields the same products as those in n-hexane, with the exception of trans-1,3-pentadiene which...
Prediction techniques of acid mine drainage: a case study of a new poly- metallic mine development in Erzincan-Iliç, Turkey
Sezer Özçelik, Ganime Aslı; Günal Türkmenoğlu, Asuman; Department of Geological Engineering (2007)
Acid Mine Drainage (AMD) is an environmental problem that eventually occurs in sulfide rich mine sites. In Turkey most of the metal mines are associated with sulphide minerals and are potential AMD generators. The purpose of this PhD thesis is to practice universally accepted tools for the prediction of AMD potential for a new metallic mine development. This study involves evaluation of geological data, geochemistry, mineralogy, and acid-base accounting (static tests) data, obtained from the Erzincan-İliç Ç...
Synthesis of 4-Phenylselenyl-1h-pyrazoles by electrophilic cyclization
Demirci, Deniz; Zora, Metin; Department of Chemistry (2011)
In this study, the synthesis of 5-ferrocenyl/aryl-4-(phenylselenyl)-1H-pyrazole derivatives was investigated since the integration of ferrocenyl and selenium moieties into pyrazole derivatives may increase their current biological activities. Initially, the starting propargyl aldehydes were synthesized from corresponding acetylenes. Subsequently, propargyl aldehydes were reacted with hydrazines to yield corresponding hydrazones. Then the in situ synthesized hydrazones were subjected to electrophilic cycliza...
Activated carbon-tungstophosphoric acid catalysts for the synthesis of tert-amyl ethyl ether (TAEE)
Obali, Zeynep; Doğu, Timur (2008-05-01)
Catalytic activities of bulk tungstophosphoric acid (HPW) and its supported forms on activated carbon were investigated in the vapor phase etherification reaction of isoamylene with ethanol in a continuous flow reactor. Tungstophosphoric acid (H3PW12O40 center dot 11H(2)O) was supported on activated carbon having a surface area of 796 m(2)/g, at two different loading levels (25% and 31%) by aqueous impregnation technique and the kinetic experiments were done in a temperature range between 353 and 370 K. Sup...
Citation Formats
W. Y. Abdelqader, “Photocatalytic hydrosilation of some dienes using M(CO)x complexes,” Ph.D. - Doctoral Program, Middle East Technical University, 1993.