Thermal degradation, dielectric and magnetic studies on copper tartrate trihydrate crystals

Binitha, M. P.; Pradyumnan, P. P.

doi:10.1007/s10973-013-2998-2

Cited by 10 publications

(3 citation statements)

References 15 publications

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“…The observed lattice constants of L-CuC 4 H 4 O 6 •3H 2 O are close to those observed by Labutina et al (Labutina, Marychev, Portnov, Somov, & Chuprunov, 2011) and Soylu (Soylu, 1996), but differ from those of copper tartrate crystals reported in the previous papers (Binitha & Pradyumnan, 2013;Bridle & Lomer, 1965;Jethva, Dabhi, & Joshi, 2016). The discrepancies are probably mainly attributed to the difference in number of bound water molecules, as described in Introduction.…”

Section: Structure Descriptionsupporting

confidence: 67%

“…Figure 3 shows the TG, differential TG (DTG), and DTA curves in the temperature range of 300-1250 K for the L- (Binitha & Pradyumnan, 2013;Jethva, Dabhi, & Joshi, 2016 on the DTA curves of both crystals are, respectively, very close to those on the DTG curves. The DTG curve, which is the first derivative of TG curve, reveals the temperature dependence of weight loss rate due to thermal decomposition of sample.…”

Section: Thermal Analysismentioning

confidence: 67%

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Structural and Thermal Investigations of L-CuC4H4O6·3H2O and DL-CuC4H4O6·2H2O Single Crystals

Fukami¹,

Tahara²

2021

IJC

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Copper(II) L-tartrate trihydrate, L-CuC4H4O6·3H2O, and copper(II) DL-tartrate dihydrate, DL-CuC4H4O6·2H2O, crystals were grown at room temperature by the gel method using silica gels as the growth medium. Differential scanning calorimetry, thermogravimetric-differential thermal analysis, and X-ray diffraction measurements were performed on both crystals. The space group symmetries (monoclinic P21 and P21/c) and structural parameters of the crystals were determined at room temperature and at 114 K. Both structures consisted of slightly distorted CuO6 octahedra, C4H4O6 and H2O molecules, C4H4O6–Cu–C4H4O6 chains linked by Cu–O bonds, and O–H–O hydrogen-bonding frameworks between adjacent molecules. Weight losses due to thermal decomposition of the crystals were found to occur in the temperature range of 300–1250 K. We inferred that the weight losses were caused by the evaporation of bound water molecules and the evolution of H2CO, CO, and O2 gases from C4H4O6 molecules, and that the residual reddish-brown substance left in the vessels after decomposition was copper(I) oxide (Cu2O).

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Section: Structure Descriptionsupporting

confidence: 67%

Section: Thermal Analysismentioning

confidence: 67%

Structural and Thermal Investigations of L-CuC4H4O6·3H2O and DL-CuC4H4O6·2H2O Single Crystals

Fukami¹,

Tahara²

2021

IJC

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“…The second one at 368°C corresponds to an exothermic reaction, which may be due to the formation of gaseous products from SDBT. [44]…”

Section: Resultsmentioning

confidence: 99%

Reaction Parameters for Controlled Sonosynthesis of Gold Nanoparticles

González-Mendoza

Cabrera-Lara

2017

J. Mex. Chem. Soc.

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The synthesis of gold nanoparticles by sonochemical technique has been previously performed with excellent results. The synthesis has been carried out in the presence of citric acid, a strong reducing agent, which allows the nucleation and growth of gold nanoparticles, at the same time that controls particle size. In this work, we report the use of sodium tartrate as a mild reducing agent that allows a better understanding of the effect of the reaction parameters during gold nanoparticle synthesis. A conventional sonication bath (37 kHz) was used for the sonochemical synthesis. This work focuses on the reaction temperature effect and the effect of sodium tartrate concentration. It was confirmed that particle size, and particle morphology is dependent of these two reaction parameters. Equally, colloidal stabilization was related to reaction temperature and sodium tartrate concentration. It was also determined that Ostwald ripening takes place during sonochemical reaction under our conditions, allowing us to understand the mechanism that takes place during synthesis. Gold nanoparticles with main particle size of 17 nm were achieved by this method.

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Dielectric and conductivity studies of stereo-selectively synthesized d- and l-nor-ephedrine

Rajendran¹,

Prabhu²,

Moorthi³

et al. 2014

J Therm Anal Calorim

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Thermal degradation, dielectric and magnetic studies on copper tartrate trihydrate crystals

Cited by 10 publications

References 15 publications

Structural and Thermal Investigations of L-CuC4H4O6·3H2O and DL-CuC4H4O6·2H2O Single Crystals

Structural and Thermal Investigations of L-CuC4H4O6·3H2O and DL-CuC4H4O6·2H2O Single Crystals

Reaction Parameters for Controlled Sonosynthesis of Gold Nanoparticles

Dielectric and conductivity studies of stereo-selectively synthesized d- and l-nor-ephedrine

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