Structural studies in solution and in the solid state on the zinc chelate of 2-hydroxy-(4-methylthio)butanoic acid, an effective mineral supplement in animal feeding

Predieri, Giovanni; Beltrami, Diego; Pattacini, Roberto; Parisi, Maria Laura; Sinicropi, Adalgisa; Valensin, Daniela; Basosi, Riccardo

doi:10.1016/j.ica.2008.05.027

Cited by 5 publications

(7 citation statements)

References 35 publications

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“…The difference values between ] as (COO − ) and ] s (COO − ) are 250 and 195 cm −1 , which is a sign that the carboxyl oxygen atoms are coordinated with manganese ion by the bridging coordination mode [10]. As shown in the spectrum, there are two strong absorption peaks near 1600 cm −1 , which are in accord with the absorption peaks at 1637 and 1580 cm −1 of the zinc complex of H 2 MHA without water molecule [6]. The result illustrates that there is not any water molecule in the manganese complex of H 2 MHA, and it is in line with the thermal decomposition process.…”

Section: Ir Spectroscopy Analysissupporting

confidence: 51%

“…The functions of the complexes of H 2 MHA are similar to that of the complexes of natural amino acid and trace elements, while they are easier to meet the needs of the market than the complexes of natural amino acid and trace elements [3,4]. So far, the complexes of H 2 MHA have been rarely reported [5][6][7], especially in the thermal decomposition mechanism and the thermal decomposition kinetics of the complexes of H 2 MHA. Here we report the synthesis, characterization, and thermal decomposition mechanism of a manganese complex of H 2 MHA, and the thermal decomposition kinetic parameters of the complex are studied by using three different methods.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Characterization, and Thermal Decomposition Kinetics of Manganese Complex of Methionine Hydroxy Analogue

Wang

Zang

2015

International Journal of Chemical Engineering

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The manganese complex of methionine hydroxy analogue was synthesized with methionine hydroxy analogue and manganese chloride as main raw materials. The composition and structure of the complex were characterized by elemental analyses, infrared spectra, and X-ray powder diffraction. The formula of the complex was Mn(C5H9O3S)2. The experimental results indicated that the manganese ion was, respectively, coordinated by the carboxylic and hydroxyl oxygen atoms from the methionine hydroxy analogue ligand. The crystal structure of the complex belonged to monoclinic system with the lattice parameters ofa= 1.2775 nm,b= 1.5764 nm,c= 1.5764 nm, andβ= 94.06°. The thermal decomposition process of the complex was studied by thermogravimetry and differential thermal analysis. The decomposition of the complex has taken place above 200°C. The residue was mainly manganese sulfide, and the experimental and calculated percentage mass loss was also given. The parameters of thermal decomposition kinetics for the complex, such as activation energy, reaction order, and preexponential factor, were calculated by using Kissinger, Flynn-Wall-Ozawa, and Freeman-Carroll methods, and the kinetic equations of the thermal decomposition were obtained.

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Section: Ir Spectroscopy Analysissupporting

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Thermal Decomposition Kinetics of Manganese Complex of Methionine Hydroxy Analogue

Wang

Zang

2015

International Journal of Chemical Engineering

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“…Crystal structures of free aliphatic -hydroxy carboxylic acids are rare, as a result of their propensity to oligomerize. Metal salts provide a means for stabilization of the -hydroxy carboxylate monomers, and structures of two HMTBA metal salts, Cu[(R,S)-HMTBA] 2 (CCDC 1018852;Yang et al, 2015) and Zn[(R,S)-HMTBA] 2 (CCDC 671417; Predieri et al, 2009), have been solved by X-ray diffraction. In our attempts to separate monomeric and oligomeric forms of HMTBA, we have successfully isolated a high-purity crystalline sample of (I), shown in Fig.…”

Section: Chemical Contextmentioning

confidence: 99%

“…The backbone conformation in (R)-(IB) is the gauche+, trans, gauche+ rotamer. An identical (g+, t, g+) conformation was adopted by (R)-HMTBA, molecule C, which is coordinated to the zinc ion in the crystal of (R,S)-HMTBA zinc salt trihydrate (Predieri et al, 2009). The conformation around the C1-C2 bond in (R)-(IB) is close to eclipsed, in respect to the O1B and O3B atoms, with a O3B-C2B-C1B-O1B torsion angle of À10.81 (19) .…”

Section: Structural Commentarymentioning

confidence: 99%

Crystal structure of (R,S)-2-hydroxy-4-(methylsulfanyl)butanoic acid

Mawhinney

Chance

et al. 2020

Acta Crystallogr E Cryst Commun

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The title compound, a major animal feed supplement, abbreviated as HMTBA and alternatively called DL-methionine hydroxy analogue, C5H10O3S, (I), was isolated in pure anhydrous monomeric form. The melting point is 302.5 K and the compound crystallizes in the monoclinic space group P21/c, with two conformationally non-equivalent molecules [(I A ) and (I B )] in the asymmetric unit. The crystal structure is formed by alternating polar and non-polar layers running along the bc plane and features an extensive hydrogen-bonding network within the polar layers. The Hirshfeld surface analysis revealed a significant contribution of non-polar H...H and H...S interactions to the packing forces for both molecules.

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“…X-ray absorption spectra were recorded at the institute of Materia Medica, 9 Chinese Academy of Medical Sciences with the storage ring SPEAR operating at 3 GeV and ring currents of 50 AE 100 mA. Selenium K-edge spectra were recorded on beamline 7-3 using a Si (220) double crystal monochromator with an upstream vertical aperture of 1 mm.…”

Section: Polycrystal Di®ractionmentioning

confidence: 99%

Structural characterization of calcium glycinate, magnesium glycinate and zinc glycinate

Yin

Liu

Lu-yao

et al. 2017

J. Innov. Opt. Health Sci.

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Metal glycinate chelates are formed by glycine and metal compounds through chemical reactions. Calcium glycinate, magnesium glycinate and zinc glycinate are kinds of new-type and ideal nutrient supplements, which have satisfactory physico-chemical properties and bioactivities. They are important for prophylaxis and treat metal de¯ciency. The structural characterization shows that the metal ion is bonded to the amino and carboxyl group to form two¯ve-membered rings. This paper mainly studies the structure characterization of the metal chelated glycinates by their solubility, infrared spectrum, thermal analysis, mass spectrometry, polycrystal di®rac-tion, the metal contents and glycine contents of calcium glycinate, magnesium glycinate and zinc glycinate.

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Structural studies in solution and in the solid state on the zinc chelate of 2-hydroxy-(4-methylthio)butanoic acid, an effective mineral supplement in animal feeding

Cited by 5 publications

References 35 publications

Synthesis, Characterization, and Thermal Decomposition Kinetics of Manganese Complex of Methionine Hydroxy Analogue

Synthesis, Characterization, and Thermal Decomposition Kinetics of Manganese Complex of Methionine Hydroxy Analogue

Crystal structure of (R,S)-2-hydroxy-4-(methylsulfanyl)butanoic acid

Structural characterization of calcium glycinate, magnesium glycinate and zinc glycinate

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