Crystal chemistry and thermal behavior of metal salts and complexes of unsaturated dicarboxylic acids: aquabis(hydrogen itaconato)barium(II), [Ba(C_5H_5O_4)_2(OH_2)]

Alexander Briceno V.; Graciela Diaz de Delgado; Belkis Ramirez V.; William O. Velasquez; Ali Bahsas B.

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Crystal chemistry and thermal behavior of metal salts and complexes of unsaturated dicarboxylic acids: aquabis(hydrogen itaconato)barium(II), [Ba(C_5H_5O_4)_2(OH_2)]

机译：不饱和二元羧酸的金属盐和配合物的晶体化学和热行为：水合双（itaconato氢）钡（II），[Ba（C_5H_5O_4）_2（OH_2）]

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[Ba(C_5H_5O_4)_2(OH_2)] is monoclinic, C2/c, with a = 4.472(1), b = 13.312(3), c = 22.236(5) A, #beta# = 92.90(1) deg, Z = 4, and D_m = 2.06 g cm~(-3). The barium atom is 10-coordinate with Ba-O distances in the range 2.749(2)-2.989(2) A. The material suffers a complex decomposition process upon heating at temperatures between 25 and 600 deg C in dynamic nitrogen and static air atmospheres. FT-IR and gas chromatography analyses indicate that water, CO, CO_2, methane, ethane, ethylene, propane, propylene, and butane, are evolved during the heating process, leaving a residue of BaCO_3. ~1H-NMR spectra of a sample heated at 200 deg C, showed isomerization of barium itaconate to barium methylmaleate.

机译：[Ba（C_5H_5O_4）_2（OH_2）]为单斜C2 / c，a = 4.472（1），b = 13.312（3），c = 22.236（5）A，＃beta＃= 92.90（1）度， Z = 4，D_m = 2.06 g cm〜（-3）。钡原子的10坐标与Ba-O距离在2.749（2）-2.989（2）A范围内。该材料在动态氮气和静态空气中在25至600摄氏度的温度下加热时会经历复杂的分解过程。 FT-IR和气相色谱分析表明，在加热过程中会析出水，CO，CO_2，甲烷，乙烷，乙烯，丙烷，丙烯和丁烷，并残留BaCO_3。加热到200摄氏度的样品的1H-NMR光谱显示衣康酸钡异构化为甲基马来酸钡。

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《Journal of chemical crystallography》 |1999年第7期|共7页
作者
Alexander Briceno V.; Graciela Diaz de Delgado; Belkis Ramirez V.; William O. Velasquez; Ali Bahsas B.;
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正文语种 eng
中图分类晶体学;
关键词
metal itaconates; unsaturated dicarboxylic acids; barium complex;

机译：钛酸金属盐;不饱和二元羧酸;钡络合物;

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1. Crystal chemistry and thermal behavior of metal salts and complexes of unsaturated dicarboxylic acids: aquabis(hydrogen itaconato)barium(II), [Ba(C_5H_5O_4)_2(OH_2)] [J] . Alexander Briceno V., Graciela Diaz de Delgado, Belkis Ramirez V., Journal of chemical crystallography . 1999,第7期

机译：不饱和二元羧酸的金属盐和配合物的晶体化学和热行为：水合双（itaconato氢）钡（II），[Ba（C_5H_5O_4）_2（OH_2）]
2. Hydrogen bonded supramolecular network in organic acid-base salts: Crystal structures of five proton-transfer complexes assembled from 5,7-dimethyl-1,8- naphthyridine-2-amine with monocarboxylic acid, dicarboxylic acid, and tricarboxylic acid [J] . Jin S., Liu L., Wang D., Journal of Molecular Structure . 2011,第1a3期

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3. Thermal evolution and crystal structures of the 3,5-pyrazole dicarboxylic acid (hydrated form and anhydrous): Ligations with nickel II and barium II [J] . Roussel P, Bentiss F, Drache M, Journal of Molecular Structure . 2006,第1a3期

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5. New metal-organic chemistry of barium, an aqueous synthesis for volatile alkaline earth complexes, and synthesis and characterization of thallium-barium-calcium-copper-oxygen thin films by metal-organic chemical vapor deposition. [D] . Schulz, Douglas Lloyd. 1993

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8. Thermal and Electrical Properties of Transition Metal Complexes and Coordination Polymers of Pyrazine-2,5-dicarboxylic Acid [R] . Dewar, M. J. S., Brown, S. B. 1978

机译：过渡金属配合物和吡嗪-2,5-二羧酸配位聚合物的热电性能

Crystal chemistry and thermal behavior of metal salts and complexes of unsaturated dicarboxylic acids: aquabis(hydrogen itaconato)barium(II), [Ba(C_5H_5O_4)_2(OH_2)]

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