ALKOXIDE SÖZCÜĞÜ İNGILIZCE DİLİNDE NE ANLAMA GELİR?
alkoksit
Bir alkoksit, bir alkolün eşlenik tabanıdır ve bu nedenle, negatif olarak yüklü bir oksijen atomuna bağlı bir organik gruptan oluşur. RO- olarak yazılabilirler, burada R organik ikame edicidir. Alkoksitler güçlü bazlardır ve R hacimli değilse iyi nükleofiller ve iyi ligandlardır. Alkoksidler, su gibi protik çözücülerde genel olarak stabil olmamasına rağmen, Williamson eter sentezi de dahil olmak üzere çeşitli reaksiyonlarda ara maddeler olarak yaygın olarak bulunur. Geçiş metali alkoksitleri, kaplamalar ve katalizörler için yaygın olarak kullanılır. Enolatlar, bir keton veya aldehide bitişik bir C-H bağının deprotonasyonuyla türetilen doymamış alkoksitlerdir. Basit alkoksitlerin nükleofilik merkezi oksijen üzerinde bulunurken, enolatlar üzerindeki nükleofilik bölge hem karbon hem de oksijen bölgelerine delokalize edilmiştir. Fenoksitler, alkil grubunun bir benzen türeviyle değiştirildiği alkoksitlerin yakın akrabalarıdır. Fenol, tipik bir alkolden daha asidiktir; Bu nedenle, fenoksitler, alkoksitlere kıyasla daha az baziktir ve daha az nükleofiliktir. Bununla birlikte, genellikle ele alınmaları daha kolaydır ve alkoksitlerinkinden daha kristal olan türevleri verirler.
İngilizce sözlükte alkoxide sözcüğünün tanımı
Sözlükteki alkoksidin tanımı, bir alkolden oluşan bir kimyasal bileşiktir.
«ALKOXIDE» İLE İLİŞKİLİ İNGILIZCE KİTAPLAR
alkoxide sözcüğünün kullanımını aşağıdaki kaynakça seçkisinde keşfedin.
alkoxide ile ilişkili kitaplar ve İngilizce edebiyattaki kullanımı ile ilgili bağlam sağlaması için küçük metinler.
1
Cracking the MCAT with CD-ROM
The acidity trends shown by alcohols derive from analogous phenomena related
to thermodynamic stability of the alkoxide ion. When an alcohol is deprotonated,
the "product" is an alkoxide ion. The more readily the alkoxide ion is solvated by ...
James L. Flowers, Princeton Review, Theodore Silver,
2004
2
ADVANCES ORGANOMETALLIC CHEMISTRY
Organometallic Chemistry of Molybdenum and Tungsten Supported by Alkoxide
Ligands WILLIAM E. BUHRO and MALCOLM H. CHISHOLM Department of
Chemistry Indiana University Bloomington, Indiana 47405 I INTRODUCTION ...
A convenient starting point for the preparation of the gel is the hydrolysis and
condensation of a mixed solution of a silicon alkoxide (e.g., TEOS) and a titanium
alkoxide (e.g., titanium tetraethoxide). From our earlier discussion of the
properties ...
4
Chemical Processing of Ceramics, Second Edition
Reaction of Alkoxide in Glycols The reaction of aluminum alkoxides in glycol
yields the glycol derivative of boehmite. l7-134-135 The crystallite size of the
product increased in the following order: HO(CH2)2OH < HO(CH2)3OH < HO(
CH2)6OH ...
Burtrand Lee, Sridhar Komarneni,
2005
5
Ceramic Processing and Sintering
As an example, consider the formation of silica-titania glasses. A convenient
starting point for the preparation of the gel is the hydrolysis and condensation of a
mixed solution of a silicon alkoxide (e.g., TEOS) and a titanium alkoxide ...
6
Handbook of sol-gel science and technology. 1. Sol-gel ...
alkaline earth fluorides, 203 alkanolamines, 113 alkoxide chemical modification,
41 alkoxide complexes chemical composition, 12 structures of, 1 3 structures, 12
alkoxide complexes applied as precursors heterometallic, 2 1 homometallic, ...
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The Chemistry of Metal Alkoxides
This results in extremely complicated oligomeric and polymeric structures of the
metal alkoxides hydrolysis products. The process of formation of oxide from metal
alkoxide can be presented by the following scheme: M(OR)n [M2On-;cH2O + ...
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Intermetallic and Ceramic Coatings
If association between metals is maintained through gelation and heat treatment,
the heterometallic alkoxide is a useful route to achieve chemical homogeneity in
multicomponent oxide ceramics. Payne and coworkers25 have used this ...
Narnedra B. Dahotre, T.S. Sudarshan,
1999
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Sol-Gel Optics: Processing and Applications
SYNTHESIS OF STARTING Pb-Ti COMPLEX ALKOXIDE, ITS HYDROLYSIS
AND FIBER DRAWING The Pb-Ti complex alkoxide was used as a starting
material for the PbO-Ti02 glasses and glass fibers. The complex alkoxide was
prepared ...
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Multifunctional Polycrystalline Ferroelectric Materials: ...
The bismuth alkoxide was insoluble in methoxyethanol because of its own strong
association. However, it easily dissolved in methoxyethanol containing strontium
alkoxide in Sr(OR)2:Bi(OR)3 molar ratios of > 0.5 [5]. As previously reported ...
Lorena Pardo, Jesús Ricote,
2011
«ALKOXIDE» TERİMİNİ İÇEREN HABERLER
Ulusal ve uluslararası basında konuşulanları ve
alkoxide teriminin aşağıdaki haberlerde hangi bağlamda kullanıldığını keşfedin.
Global high-purity alumina market development and demand …
The most widely used process by producers is hydrolysis of aluminum alkoxide. In manufacturing of high-purity alumina, desire level of purity of ... «WhaTech, Haz 15»
Tin-Oxide Promises to Give Battery Charging a Boost
One simply has to put tin alkoxide into boiling water then heat the nanoparticles to 400 degrees Celsius (752 degrees Fahrenheit). It is at this ... «The Green Optimistic, Ara 14»
Nanoparticle Reduces Charge Times for Li-ion Batteries From Hours …
The process involves simply adding a tin alkoxide precursor into boiling water and then following that with heating the nanoparticle to 400 ... «IEEE Spectrum, Ara 14»
Nanoparticle network could bring fast-charging batteries
The precursor compound is a solid tin alkoxide – a material analogous to cost-efficient and broadly available titanium alkoxides. It will certainly ... «Purdue Newsroom, Ara 14»
Efficient synthesis of polyurethane raw materials from carbon dioxide
In this study, it was discovered that aromatic urethanes can be synthesized with high yield when amine and tin alkoxide are reacted with ... «Phys.Org, Kas 14»
Hybrid materials: a bottom-up approach for nanotechnology …
(a) Metal organic precursors, examples of organically modified silicon alkoxide with (b) organic polymerizable function, or (c) organic modifier ... «SPIE Newsroom, Eyl 14»
Effectively synthesizing a key raw material of the silicon chemical …
Also, the efficiency of the reaction was further increased by performing it in the presence of carbon dioxide and catalysts, metal alkoxide and ... «Phys.Org, Tem 14»
Indoxamycins A, C and F
The resultant alkoxide immediately undergoes 1,4-addition into the nearby enone, generating an enolate, which is quenched with «Chemistry World, Oca 14»
Nobel laureates and their research teams at American Chemical …
... and propagation have been studied for both Mo monoaryloxide pyrrolide (MAP) imido alkylidenes and Mo bis-alkoxide imido alkylidenes. «EurekAlert, Eyl 13»
Understanding the Aldol Condensation Reaction Using Nuclear …
... addition to the carbonyl carbon of another aldehyde or ketone molecule, forming a new C-C bond and an alkoxide ion as shown in Figure 3. «Azom.com, May 13»