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Journal articles on the topic 'Gallium(m) chloride'

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1

Naskar, Nabanita, and Susanta Lahiri. "Separation of no-carrier-added 71,72As from 46 MeV alpha particle irradiated gallium oxide target." Radiochimica Acta 109, no. 5 (2021): 389–95. http://dx.doi.org/10.1515/ract-2020-0120.

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Abstract No-carrier-added (NCA) 71,72As radionuclides were produced by irradiating gallium oxide target by 46 MeV α-particles. NCA 71,72As was separated from the target matrix by liquid-liquid extraction (LLX) using trioctyl amine (TOA) and tricaprylmethylammonium chloride (aliquat-336) diluted in cyclohexane. The bulk gallium was quantitatively extracted into the organic phase leaving 71,72As in the aqueous phase. Complete separation was observed at 3 M HCl + 0.1 M TOA and 2 M HCl + 0.01 M aliquat-336.
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2

Chen, Wei-Sheng, Ko-Wei Tien, Li-Pang Wang, Cheng-Han Lee, and Yi-Fan Chung. "Recovery of Gallium from Simulated GaAs Waste Etching Solutions by Solvent Extraction." Sustainability 12, no. 5 (2020): 1765. http://dx.doi.org/10.3390/su12051765.

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Gallium arsenide is used in semiconductor industries worldwide. Numerous waste etching solutions are produced during the processes of GaAs wafer production. Therefore, a complete and eco-friendly technology should be established to recover gallium as a gallium chloride solution and remove arsenic ion from waste GaAs etching solution. In this study, the gallium trichloride and arsenic trisulfide powders were dissolved in ammonia solutions to prepare the simulated solutions, and the pH value was adjusted to pH 2 by nitric acid. In the extraction step, the GaAs etching solutions were extracted us
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3

Nnaji, Nnaemeka, Njemuwa Nwaji, and Tebello Nyokong. "Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium." International Journal of Electrochemistry 2020 (September 30, 2020): 1–11. http://dx.doi.org/10.1155/2020/8892559.

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Tetrakis[(benzo[d]thiazol-2-yl-thio) phthalocyaninato] gallium(III)chloride (1) and tetrakis[(benzo[d]thiazol-2ylphenoxy) phthalocyaninato] gallium(III)chloride (2) were successfully electrodeposited onto aluminium for corrosion retardation in 1.0 M hydrochloric acid solution. The aim of this study was to compare the corrosion resistance of electrodeposited metallated phthalocyanines. Scanning electron microscopy, X-ray diffraction, electrochemical impedance spectroscopy (EIS), and polarization confirmed the aluminium corrosion inhibition potentials of complexes 1 and 2. EIS and polarization t
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4

Mitzel, Norbert W., and Christian Lustig. "Organoaluminium and -gallium Lewis-Acid Adducts of Tetramethylmethylenediamine." Zeitschrift für Naturforschung B 59, no. 11-12 (2004): 1532–39. http://dx.doi.org/10.1515/znb-2004-11-1225.

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The compounds Me3Al-Me2NCH2NMe2-AlMe3 (1) and Me3Ga-Me2NCH2NMe2-GaMe3 (2) were prepared by reacting Me2NCH2NMe2 (TMMDA) with two equivalents of the metal trialkyls in hydrocarbon solutions.With the ether adduct Me3Ga·OEt2 Me2NCH2NMe2 reacts to give the monoadduct Me2NCH2NMe2-GaMe3 (3). These compounds were characterized by NMR spectroscopy (1H, 13C and 27Al) and by elemental analyses. Crystal structure investigations show 1 and 2 to be monomeric and to a adopt a trans,trans-conformation for their M-N-C-N-M backbones. 3 is also monomeric in the solid state, but adopts a cis,trans-conformation.
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5

M. M. Kinsman, Luke, Carole A. Morrison, Bryne T. Ngwenya, and Jason B. Love. "Reducing the Competition: A Dual-Purpose Ionic Liquid for the Extraction of Gallium from Iron Chloride Solutions." Molecules 25, no. 18 (2020): 4047. http://dx.doi.org/10.3390/molecules25184047.

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The separation of gallium from iron by solvent extraction from chloride media is challenging because the anionic chloridometalates, FeCl4− and GaCl4−, display similar chemical properties. However, we report here that the selective separation of gallium from iron in HCl solution can be achieved using the dual-purpose ionic liquid methyltrioctylammonium iodide in a solvent extraction process. In this case, the reduction of Fe3+ to Fe2+ by the iodide counterion was found to inhibit Fe transport, facilitating quantitative Ga extraction by the ionic liquid with minimal Fe extraction from 2 M HCl.
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6

Akdeniz, Z., M. Çaliskana, and M. P. Tosib. "Polymerie Structures in Aluminium and Gallium Halides." Zeitschrift für Naturforschung A 55, no. 6-7 (2000): 575–80. http://dx.doi.org/10.1515/zna-2000-6-703.

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54a,The anionic species (Aln X3n + 1) − with X = CI or Br and n ≥ 1 have been recognized for a number of years to form in acidic liquid mixtures of aluminium chloride or bromide with the corresponding halides of alkali or organic cations, in relative proportions which vary with the composition of the mixture. In this work we evaluate the structure and the energetics of such polymeric series in a comparative study of Al and Ga compounds. To this end we first extend an earlier study of the ionic interactions in the Al2Cl6 molecule [Z. Akdeniz and M. P. Tosi, Z. Naturforsch. 180 (1999)] to determ
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7

Gustafsson, Anna M. K., Fredrik Björefors, Britt-Marie Steenari, and Christian Ekberg. "Investigation of an Electrochemical Method for Separation of Copper, Indium, and Gallium from Pretreated CIGS Solar Cell Waste Materials." Scientific World Journal 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/494015.

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Recycling of the semiconductor material copper indium gallium diselenide (CIGS) is important to ensure a future supply of indium and gallium, which are relatively rare and therefore expensive elements. As a continuation of our previous work, where we recycled high purity selenium from CIGS waste materials, we now show that copper and indium can be recycled by electrodeposition from hydrochloric acid solutions of dissolved selenium-depleted material. Suitable potentials for the reduction of copper and indium were determined to be −0.5 V and −0.9 V (versus the Ag/AgCl reference electrode), respe
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8

Dhruva, Kumar, Saini Anil, Suresh, and S. Sandhu Jagir. "Gallium(III) chloride as an efficient new catalyst for the production of Hantzsch 1 ,4-dihydropyridines." Journal of Indian Chemical Society Vol. 86, Sep 2009 (2009): 996–1000. https://doi.org/10.5281/zenodo.5820069.

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Department of Chemistry, Punjabi University, Patiala-147 002, Punjab, india <em>E-mail</em> : j_sandhu2002@yahoo.com <em>Manuscript received 16 March 2009, accepted 26 May 2009</em> Hantzsch 1,4-dihydropyridines (DHPs) are synthesized In good to excellent yields from aldehydes, 1,3-dicarbonyl compounds and ammonium acetate using gallium(lll) chloride which acts as dehydrating agents and 5 mol% is enough for this protocol under solvent free conditions.
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9

Seredin, P. V., N. A. Kurilo, Ali O. Radam, et al. "Study of semi-polar gallium nitride grown on m-sapphire by chloride vapor-phase epitaxy." Конденсированные среды и межфазные границы 25, no. 1 (2023): 103–11. http://dx.doi.org/10.17308/kcmf.2023.25/10978.

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10

Myasoedov A.V., Pavlov I. S., Pechnikov A. I., Stepanov S.I. та Nikolaev V. I. "Defect structure of α-Ga-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=- film grown on a m-face sapphire substrate, according to transmission electron microscopy investigation". Technical Physics Letters 49, № 1 (2023): 67. http://dx.doi.org/10.21883/tpl.2023.01.55353.19365.

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The results of a study by transmission electron microscopy of the structural state of α-Ga2O3 film with a thickness of about 1 micron, grown on the prismatic m-face sapphire by the method of chloride vapor phase epitaxy, are presented. The influence of the substrate orientation on the formation of the dislocation structure is discussed. Threading dislocations, including those with the Burgers vector 1/3&amp;lt; 1120 &amp;gt;, and dislocation half-loops are revealed. The inclined propagation of dislocations and the formation of dislocation half-loops result in the reduction of the threading dis
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11

Ergezinger, Christina, Frank Weller, and Kurt Dehnicke. "Amidinatokomplexe von Bor, Aluminium, Gallium, Indium und Zinn Die Kristallstrukturen von Ph-C(NSiMe3)2AICI2 und Ph-C(NSiMe3)2SnCl3 / Amidinato Complexes of Boron, Aluminium, Gallium, Indium, and Tin The Crystal Structures of Ph-C(NSiMe3)2AlCl2 and Ph-C(NSiMe3)2SnCl3." Zeitschrift für Naturforschung B 43, no. 12 (1988): 1621–27. http://dx.doi.org/10.1515/znb-1988-1215.

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Abstract The trichlorides of aluminium, gallium, and indium, as well as boron tribromide and tin tetra-chloride react with N,N,N'-tris(trimethylsilyl)benzamidine to form the monomeric N.N'-bis-(trimethylsilyl)benzamidinato complexes Ph-C(NSiMe3)2MX2(M = B, Al. Ga, In; X = Cl, Br) and Ph -C(NSiMe3)2SnCl3 , respectively. All compounds have been characterized by their IR spectra, two of them by X-ray diffraction studies. Ph - C(NSiMei)2AlCl2 : Space group C2/c, Z = 4, 1152 independent observed reflexions, R = 0.052. Lattice dimensions (19 °C): a = 1558.6(1), b = 1116.6(1), c = 1307.0(1) pm, β = 1
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12

Munro, Orde Q., Athanassios G. Coutsolelos, Beisong Cheng, and W. Robert Scheidt. "Single hydroxo-bridged group 13 metalloporphyrin dimers: Solution studies and solid-state structures." Journal of Porphyrins and Phthalocyanines 23, no. 09 (2019): 969–89. http://dx.doi.org/10.1142/s1088424619500834.

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The syntheses of indium, gallium and aluminum porphyrin dimers with a single hydroxo-bridge, [Formula: see text][M(Porph)]2(OH)[Formula: see text], are described. Emphasis is given to indium and gallium derivatives. The X-ray structures for [Formula: see text] [Ga(OEP)]2(OH)[Formula: see text] ClO4 and [Formula: see text] [In(OEP)]2(OH)[Formula: see text] ClO4 (two forms) are presented. The dimeric molecules can be synthesized by the acid-treatment of the corresponding hydroxo-ligated monomeric complexes [M(OEP)(OH)] and [M(TPP)(OH)]. The nature of the starting material (the hydroxo-ligated mo
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13

Vallès, Víctor, de Labastida Marc Fernández, Julio López, and José Luis Cortina. "Selective recovery of boron, cobalt, gallium and germanium from seawater solar saltworks brines using N-methylglucamine sorbents: Column operation performance." Science of The Total Environment 923 (March 1, 2024): 171438. https://doi.org/10.1016/j.scitotenv.2024.171438.

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The European Union (EU) identified a list of Critical Raw Materials (CRMs) crucial for its economy, aiming to find alternative sources. Seawater is a promising option as it contains almost all elements, although most at low concentrations. However, to the present, the CRMs' recovery from seawater is technically and economically unfeasible. Other alternatives to implement sea mining might be preferred, such as reverse osmosis brines or saltworks bitterns (after sodium chloride crystallisation). The CRMs' extraction in a selective way can be achieved using highly selective recovery processes, su
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14

Bosenko, Olha, Serhii Kuleshov, Valerii Bykov, and Anatoliy Omel‛chuk. "Electrochemical reduction of tungsten (VI) oxide from a eutectic melt CaCl2-NaCl under potentiostatic conditions." Journal of the Serbian Chemical Society, no. 00 (2022): 8. http://dx.doi.org/10.2298/jsc211105008b.

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The paper presents results of the study of the electrochemical reduction of tungsten(VI) oxide in a melt of the eutectic composition 52 mol% CaCl2 and 48 mol% NaCl at a liquid gallium electrode. Scanning electron microscopy and X-ray diffraction methods were used to study the microstructures of the obtained powders. The Rietveld method which is based on diffraction patterns were used to calculate the quantitative content of phases in WO3 reduction products. The thermodynamic properties of the electrolysis process were investigated by voltammetry. It is shown that a necessary condition for the
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15

Schmidbaur, Hubert, Josef Lettenbauer, Dallas L. Wilkinson, Gerhard Müller, and Otto Kumberger. "Modellsysteme für die Gallium-Extraktion, I. Struktur und Moleküldynamik von Aluminium- und Galliumtris(oxinaten) / Model Systems for Gallium Extraction, I. Structure and Molecular Dynamics of Aluminium and Gallium Tris(oxinates)." Zeitschrift für Naturforschung B 46, no. 7 (1991): 901–11. http://dx.doi.org/10.1515/znb-1991-0709.

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Tris(oxinato) complexes of aluminium(III) and gallium(III) have been prepared from 8-oxyquinoline (OxH) and its six C-methylated derivatives from aqueous solutions of the metal chlorides or nitrates and an ammonium acetate buffer. Crystalline monohydrates or (upon precipitation with methanol) mono-methanol adducts are obtained. Single crystal X-ray diffraction studies reveal a meridional tris(chelate) structure for the two (isomorphous) tris(oxinates) Al(Ox)3 · MeOH and Ga(Ox)3 · MeOH with distinct differences in the individual dimensions. (The MeOH molecules form strong hydrogen bonds with on
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16

Shitanshu, Pandey, and Kumar Sushil. "Gallic acid extraction with mixed aminic extractants dissolved in 1- decanol." Journal of Indian Chemical Society Vol. 97, No. 10a, Oct 2020 (2020): 1631–35. https://doi.org/10.5281/zenodo.5956241.

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Chemical Engineering Department, M.N.N.I.T. Allahabad &ndash; 211 004, India E-mail: sushilk@mnnit.ac.in <em>Manuscript received online 31 July 2020, revised and accepted 31 October 2020</em> Gallic acid (GA) is a one of those phenolic acids which has a significant role in different industrial applications. In present study, the organic phase volume of TOA-Aliquat336 extractant mixture dissolved in 1-decanol is optimized for the maximum recovery of GA by synergic extraction. The effects of acid concentration, extractant volume ratio, solvent polarity and pH of initial aqueous solution on GA ex
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17

Kiran, Choudhary, and Singh Nama Krishnendra. "Biochemical responses of Trioza jambolanae infected Syzygium jambos leaves from Kota District, Rajasthan." Biolife 3, no. 3 (2022): 597–604. https://doi.org/10.5281/zenodo.7272922.

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<strong>ABSTRACT</strong> Galls are specialized plant structures formed by the alteration of normal plant tissues by the galling organisms. Generally galls provide a food source to the insect for their growth and development. Present study elaborates the biochemical changes in leaf galls of <em>Syzygium jambos </em>due to the infection of <em>Trioza jambolanae. </em>The amount of total chlorophyll, carbohydrate, protein, phenol, amino acids and proline were compared in healthy and galled leaf extracts. Nutritive tissue, on which the insect feeds, contained high amount of phenol and proline whe
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18

"Gallium chloride (GaCl3) (0.2 M)." Cold Spring Harbor Protocols 2007, no. 11 (2007): pdb.rec10747. http://dx.doi.org/10.1101/pdb.rec10747.

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19

Tölke, Katharina, Sven Porath, Beate Neumann, Hans-Georg Stammler, and Berthold Hoge. "The First Main Group Element Lewis Acid Thionyl chloride Adduct and its Chemistry." Angewandte Chemie International Edition, July 14, 2024. http://dx.doi.org/10.1002/anie.202408741.

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Although the adduct of aluminum trichloride with thionyl chloride has been reported, no thionyl chloride adduct of a main group element Lewis acid or organometallic compound has been structurally characterized. In this communication we present the synthesis and reactivity of the structurally ascertained adduct of thionyl chloride with tris(pentafluoroethyl)gallane as a representative of a main group element Lewis acid. Gallium and indium compounds with electron withdrawing groups, e.g. the pentafluoroethyl ligand, display versatile properties. While gallates and indates, [MR4]–, behave as weak
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20

Tölke, Katharina, Sven Porath, Beate Neumann, Hans-Georg Stammler, and Berthold Hoge. "The First Main Group Element Lewis Acid Thionyl chloride Adduct and its Chemistry." Angewandte Chemie, July 14, 2024. http://dx.doi.org/10.1002/ange.202408741.

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Although the adduct of aluminum trichloride with thionyl chloride has been reported, no thionyl chloride adduct of a main group element Lewis acid or organometallic compound has been structurally characterized. In this communication we present the synthesis and reactivity of the structurally ascertained adduct of thionyl chloride with tris(pentafluoroethyl)gallane as a representative of a main group element Lewis acid. Gallium and indium compounds with electron withdrawing groups, e.g. the pentafluoroethyl ligand, display versatile properties. While gallates and indates, [MR4]–, behave as weak
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21

Ganesh, Vottikondala, Suresh Sundaram, and Krishnan Baskar. "Structural and magnetic properties of pure and cobalt doped Gallium Nitride nanocrystals." MRS Proceedings 1257 (2010). http://dx.doi.org/10.1557/proc-1257-o03-37.

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AbstractIn the present study pure and doped gallium nitride (GaN) nanocrystals were synthesized using gallium trichloride (GaCl3), ethylene diamine tetra acetic acid (EDTA) and cobalt chloride as raw materials at a temperature of 900 °C in ammonia (NH3) atmosphere. The XRD spectrum for pure and cobalt doped GaN nanocrystals shows the formation of single phase wurtzite structure. No impurity phases were observed in the X-ray diffraction pattern for 5% Co doped sample whereas secondary phases were observed when the doping concentration exceeds 5 %. Shift in X-ray diffraction peaks were observed
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