Academic literature on the topic 'Hemimellitic acid'

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Journal articles on the topic "Hemimellitic acid"

1

R., Tijar, Bourjila M., EL Guerdaoui A., El Merbouh B., Drissi El Bouzaidi R., and El Gridani A. "Determination of preferred conformations of benzenetricarboxylic acids by means of genetic algorithm MNC for multi-modal search." Chemistry International 3, no. 4 (2017): 477–86. https://doi.org/10.5281/zenodo.1473407.

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The structures of benzenetricarboxylic acids: hemimellitic, trimellitic and trimesic have been investigated using genetic algorithm MNC. Calculated structures and heats of formation, using semi-empiric method AM1, are reported for all the lower-energy conformers of each species. In effect, hemimellitic acid and trimellitic in which the carboxyl groups are linked to the benzene ring in adjacent (ortho) positions assume a non-planar geometry, while trimesic acid which having no carboxylic groups in the ortho-position adopted a planar structure in the two most stable conformations.
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2

Shimoni, Michael, Jacques Azran, and Ouri Buchman. "Synthesis of [5-3H] hemimellitic acid." Journal of Labelled Compounds and Radiopharmaceuticals 25, no. 6 (1988): 685–88. http://dx.doi.org/10.1002/jlcr.2580250614.

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3

Dutkiewicz, Grzegorz, Edward Dutkiewicz, and Maciej Kubicki. "Cocrystals of pyrazine and benzene polycarboxylic acids." Acta Crystallographica Section C Structural Chemistry 74, no. 11 (2018): 1420–26. http://dx.doi.org/10.1107/s2053229618013669.

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The crystal structures of four cocrystals of pyrazine with benzene polycarboxylic acids were determined, namely pyrazine–phthalic (benzene-1,2-dicarboxylic) acid (1/1), C4H4N2·C8H6O4 (1), pyrazine–hemimellitic (benzene-1,2,3-tricarboxylic) acid (1/1), C4H4N2·C9H6O6 (2), pyrazine–hemimellitic acid–water (1/2/2), C4H4N2·2C9H6O6·2H2O (2a), and pyrazine–pyromellitic (benzene-1,2,4,5-tetracarboxylic) acid (3/1), 3C4H4N2·C10H6O8 (3). In all cases, infinite chains of alternating acid and base molecules, bonded by O—H...N hydrogen bonds, are formed. However, the details of the supramolecular structure
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4

Dale, S. H., A. E. L. Coombs, W. Clegg, M. R. J. Elsegood, and S. Kainth. "Sandwiches and cavities: the supramolecular chemistry of hemimellitic acid." Acta Crystallographica Section A Foundations of Crystallography 61, a1 (2005): c44. http://dx.doi.org/10.1107/s0108767305098156.

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5

Dale, Sophie H., Mark R. J. Elsegood, and Augusta E. L. Coombs. "Hydrogen bond directed supramolecular arrays utilising hemimellitic acid: Solvent inclusion clathrates." CrystEngComm 6, no. 59 (2004): 328. http://dx.doi.org/10.1039/b410461g.

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6

Łyszczek, R. "Synthesis, Characterization and thermal behaviour of hemimellitic acid complexes with lanthanides(III)." Journal of Thermal Analysis and Calorimetry 91, no. 2 (2007): 595–99. http://dx.doi.org/10.1007/s10973-007-8471-3.

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7

Du, Miao, Zhi-Hui Zhang, and Yan-Ping You. "Co-crystallization of hemimellitic acid with 4,4′-bipyridine forming a pillar-layered hydrogen-bonded network." Acta Crystallographica Section C Crystal Structure Communications 61, no. 9 (2005): o574—o576. http://dx.doi.org/10.1107/s0108270105026442.

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8

Dmowski, Wojciech, and Wojciech Wiszniewski. "A re-investigation of the reaction of hemimellitic acid with sulphur tetrafluoride. A simple preparation of 2,6-bis(trifluoromethyl)benzoic acid." Journal of Fluorine Chemistry 82, no. 2 (1997): 163–65. http://dx.doi.org/10.1016/s0022-1139(96)03541-5.

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9

DMOWSKI, W., and W. WISZNIEWSKI. "ChemInform Abstract: A Reinvestigation of the Reaction of Hemimellitic Acid with Sulfur Tetrafluoride. A Simple Preparation of 2,6-Bis(trifluoromethyl)benzoic Acid." ChemInform 28, no. 42 (2010): no. http://dx.doi.org/10.1002/chin.199742111.

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10

Giorgi, Pascal D., Siu-Ha Soo-Tang, Sylvain Antoniotti, and Jan C. van der Waal. "Catalytic Oxidation of Biosourced 3-Methylphtalic Anhydride under O2 : One-Pot Hemimellitic Acid Synthesis and Novel Example of Biomass Valorization." ChemistrySelect 2, no. 33 (2017): 10766–70. http://dx.doi.org/10.1002/slct.201702274.

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