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Optical basicity definition

WebPolarisability and polarising power of rare earth ions in glass: an optical basicity assessment — The University of Aberdeen Research Portal Polarisability and polarising power of rare earth ions in glass: an optical basicity assessment John A Duffy Chemistry Research output: Contribution to journal › Article › peer-review 41 Citations (Scopus) WebSlag Basicity is a measure of the acidic-basic character of the oxides, widely used by the glass scientists, slag metallurgists and some geologists as well. You will get the details …

Optical basicity: a scale of acidity/basicity of solids and its ...

WebAug 1, 1993 · 4) Optical basicity is a concept arising from a consideration of the ionic/covalent nature of bonding between a Lewis acid and base and is quantitatively … WebFeb 26, 2015 · A new method (named as DASF: Derivation of absorption spectrum fitting) is proposed for the determination of optical band gap and the nature of optical transitions in semiconductors; this method only requires the measurement of the absorbance spectrum of the sample, avoiding any needs to film thickness or any other parameters. cif by courier https://makeawishcny.org

A review of optical basicity and its applications to oxidic …

WebJun 25, 2024 · So, lanthanum is accountable for the increase of non-bridging oxygen due to this shift is obtained. So, the optical bandgap of these glasses has been decreased as well as the refractive index. Polarizability and basicity of the prepared glasses according to the refractive index and optical bandgap have been investigated. WebIt is shown that optical basicity avoids the confusion that can arise from the use of empirical basicity ratios, particularly with regard to the effect of magnesia, and in addition,... WebApr 6, 2024 · Optical basicity, K, is a parameter that often correlates with the level of depolymerization of a conventional glass network where it will be higher as more non-bridging oxygen atoms and ionic... cif buscar

Optical basicity: a scale of acidity/basicity of solids and its ...

Category:Optical bistability - Wikipedia

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Optical basicity definition

Electronic oxide polarizability and optical basicity of simple oxides ...

WebOct 1, 2014 · A method for rough estimation of the optical thickness of solar prominences in Halpha line is presented. The method is based on the fitting of observed profiles with the synthetic ones computed... http://www.ecm.okayama-u.ac.jp/ceramics/Research/Papers/2011/Nanba_JCSJ_119(2011)720.pdf

Optical basicity definition

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WebFeb 1, 2024 · The concept of optical basicity (Λ) is particularly suited to binary oxides and oxidic network materials such as silicates to characterize the acid–base nature of glasses and melts and to account for the complexation of metal cations by a variety of anionic … WebBasicity definition: The quality or condition of being a base. The capacity of an acid to react with a base, measured by the number of hydrogen atoms that can be replaced by a base.

WebThe concept of optical basicity (Λ) is particularly suited to binary oxides and oxidic network materials such as silicates to characterize the acid–base nature of glasses and melts and to account for the complexation of metal cations by a variety of anionic frameworks. WebNov 30, 2024 · modifier. The molar polarizability, αm, oxide ion polarizability, αo2-and optical basicity, Λ of the glasses are calculated by Lorentz-Lorenz equation. The glasses were found to possess αm values 3, and αo2-values between 3.303 to 4.772. Meanwhile, optical basicity increases from 0.115 to 0.893. Keywords: barium oxide, refractive index ...

WebSep 1, 2003 · Optical basicity of a medium is strongly influenced by the polarizing strength of the cations present. A strongly polarizing cation will attract and bind the ligands towards that cation. Such binding reduces the electron donating power of the ligands towards the probe ion resulting in smaller optical basicity. WebThe optical basicity of complex nitrides can therefore be calculated by the same method established for oxides using the equivalent fractions and the basicity of the constituent nitrides. The relationship between nitride polarizability α N and basicity Λ(nitride) was found to be linear, with Λ(nitride) = 0.39α N − 0.14 where α N is given ...

WebJul 27, 2011 · Basicity is expressed using the Smith {alpha} parameter scale. A linear relation was found between the oxide electronegativity and the Smith {alpha} parameter, …

WebFeb 13, 2024 · The concept of “basicity ” has been central to our understanding of slag chemistry for many decades. Traditionally, basicity has been connected to the level of … cif c-19 inductionWebIn optics, optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on the input. Optical devices with a feedback mechanism, e.g. a laser, provide two methods of achieving bistability . dharawal seasons calendarWebOptical basicity analysis of glasses containing trivalent scandium, yttrium, gallium and indium John A Duffy Chemistry Research output: Contribution to journal › Article › peer-review 18 Citations (Scopus) Overview Cite this APA Standard Harvard Vancouver Author BIBTEX RIS Duffy, J. A. (2005). dharawal seasonal calendarWebThe concept of optical basicities initially developed by Duffy for solid oxides was successfully transferred to low melting salts such as ionic liquids (ILs). Several ionic … cif cablematicWebAug 13, 2002 · The acid−base properties of germanate glasses cannot presently be compared quantitatively with those of silicate, borate, and several other glasses because … cif business lawWebThe optical basicity of complex nitrides can therefore be calculated by the same method established for oxides using the equivalent fractions and the basicity of the constituent … cif-cars kftWebOct 10, 2024 · Optical basicity is identified as the average electron donor power of a fluorinated or oxidic compound ( Herrmann et al., 2015 ). For a glass system consisting of … dharawal word for hello