Crystal data for ferroelectric RbHC4H4O6 and NH4HC4H4O6 crystals

Desai, C. C.; Patel, A.

doi:10.1007/bf01730747

Cited by 10 publications

(6 citation statements)

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“…Many tartrate compounds are formed by the reaction of tartaric acid with compounds containing positive ions (i.e., two monovalent cations or one divalent cation) (Desai & Patel, 1988;Fukami, Hiyajyo, Tahara, & Yasuda, 2017;Fukami & Tahara, 2018;Fukami & Tahara, 2020;Labutina, Marychev, Portnov, Somov, & Chuprunov, 2011). Tartaric acid (chemical formula: C 4 H 6 O 6 ; systematic name: 2,3-dihydroxybutanedioic acid) has two chiral carbon atoms in its structure, which provides the possibility for four possible different forms of chiral, racemic, and achiral isomers: L(+)-tartaric, D(-)-tartaric, racemic (DL-) tartaric, and meso-tartaric acid (Bootsma & Schoone, 1967;Fukami, Tahara, Yasuda, & Nakasone, 2016;Song, Teng, Dong, Ma, & Sun, 2006).…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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

Fukami¹,

Tahara²

2021

IJC

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“…Many tartrate compounds are formed by reacting tartaric acid with compounds containing positive ions (two monovalent cations or one divalent cation) (Desai & Patel, 1988;Fukami, Hiyajyo, Tahara, & Yasuda, 2017a;Fukami, Hiyajyo, Tahara, & Yasuda, 2017b;Fukami & Tahara, 2018;Labutina, Marychev, Portnov, Somov, & Chuprunov, 2011). Tartaric acid (chemical formula: C 4 H 6 O 6 ; systematic name: 2,3-dihydroxybutanedioic acid) has two chiral carbon atoms in its structure, which provides the possibility for four possible different forms of chiral, racemic, and achiral isomers: L(+)-tartaric, D(-)-tartaric, racemic (DL-) tartaric, and meso-tartaric acid (Bootsma & Schoone, 1967;Fukami, Tahara, Yasuda, & Nakasone, 2016;Song, Teng, Dong, Ma, & Sun, 2006).…”

Section: Introductionmentioning

confidence: 99%

Crystal Structures and Thermal Properties of L-MnC4H4O6•2H2O and DL-MnC4H4O6•2H2O

Fukami¹,

Tahara²,

Dimyati³

2019

IJC

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Manganese L-tartrate dihydrate, L-MnC4H4O6·2H2O, and manganese DL-tartrate dihydrate, DL-MnC4H4O6·2H2O, 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 P2/c) and structural parameters of the crystals were determined at room temperature. Both structures consisted of slightly distorted MnO6 octahedra, C4H4O6 and H2O molecules, 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 300–1150 K. We inferred that the weight losses were caused by the evaporation of bound 2H2O molecules, and the evolutions of gases from C4H4O4 and of (1/2)O2 gas from MnO2, and that the residual black substance left in the vessels after decomposition was manganese oxide (MnO).

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“…Many tartrate compounds are formed by the reaction of tartaric acid with various positive ions and are used in numerous industrial applications for transducers and in linear and non-linear mechanical devices due to their excellent dielectric, ferroelectric, piezoelectric, and nonlinear optical properties (Abdel-Kader et al, 1991;Desai & Patel, 1988;Firdous et al, 2010;Torres et al, 2002). Several types of tartaric acid crystals, such as potassium hydrogen tartrate, KC 4 H 5 O 6 , and calcium tartrate, CaC 4 H 4 O 6 , develop naturally in bottled wine and are the major cause of wine's natural and harmless sediment (Boese & Heinemann, 1993;Buschmann & Luger, 1985;Derewenda, 2008;Hawthorne et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

Structural Refinements and Thermal Properties of L(+)-Tartaric, D(–)-Tartaric, and Monohydrate Racemic Tartaric Acid

Fukami¹,

Tahara²,

Yasuda³

et al. 2016

IJC

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Differential scanning calorimetry, thermogravimetric-differential thermal analysis, and X-ray diffraction measurements were performed on single crystals of L(+)-tartaric, D(-)-tartaric, and monohydrate racemic (MDL-) tartaric acid. The exact crystal structures of the three acids, including the positions of all hydrogen atoms, were determined at room temperature. It was pointed out that one of O-H-O hydrogen bonds in MDL-tartaric acid has an asymmetric double-minimum potential well along the coordinate of proton motion. The weight losses due to thermal decomposition of L-and D-tartaric acid were observed to occur at 443.0 and 443.2 K, respectively, and at 306.1 and 480.6 K for MDL-tartaric acid. The weight losses for L-and D-tartaric acid during decomposition were probably caused by the evolution of 3H 2 O and 3CO gases. By considering proton transfer between two possible sites in the hydrogen bond, we concluded that the weight losses at 306.1 and 480.6 K for MDL-tartaric acid were caused by the evaporation of half the bound water molecules in the sample, and by the evaporation of the remaining water molecules and the evolution of 3H 2 O and 3CO gases, respectively.

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Crystal data for ferroelectric RbHC4H4O6 and NH4HC4H4O6 crystals

Cited by 10 publications

References 1 publication

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

Crystal Structures and Thermal Properties of L-MnC4H4O6•2H2O and DL-MnC4H4O6•2H2O

Structural Refinements and Thermal Properties of L(+)-Tartaric, D(–)-Tartaric, and Monohydrate Racemic Tartaric Acid

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